1 /*
2 * VARIANT
3 *
4 * Copyright 1998 Jean-Claude Cote
5 * Copyright 2003 Jon Griffiths
6 * Copyright 2005 Daniel Remenak
7 * Copyright 2006 Google (Benjamin Arai)
8 *
9 * The algorithm for conversion from Julian days to day/month/year is based on
10 * that devised by Henry Fliegel, as implemented in PostgreSQL, which is
11 * Copyright 1994-7 Regents of the University of California
12 *
13 * This library is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2.1 of the License, or (at your option) any later version.
17 *
18 * This library is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with this library; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 */
27
28 #include "config.h"
29
30 #include <string.h>
31 #include <stdlib.h>
32 #include <stdarg.h>
33
34 #define COBJMACROS
35 #define NONAMELESSUNION
36 #define NONAMELESSSTRUCT
37
38 #include "windef.h"
39 #include "winbase.h"
40 #include "wine/unicode.h"
41 #include "winerror.h"
42 #include "variant.h"
43 #include "resource.h"
44 #include "wine/debug.h"
45
46 WINE_DEFAULT_DEBUG_CHANNEL(variant);
47
48 const char * const wine_vtypes[VT_CLSID+1] =
49 {
50 "VT_EMPTY","VT_NULL","VT_I2","VT_I4","VT_R4","VT_R8","VT_CY","VT_DATE",
51 "VT_BSTR","VT_DISPATCH","VT_ERROR","VT_BOOL","VT_VARIANT","VT_UNKNOWN",
52 "VT_DECIMAL","15","VT_I1","VT_UI1","VT_UI2","VT_UI4","VT_I8","VT_UI8",
53 "VT_INT","VT_UINT","VT_VOID","VT_HRESULT","VT_PTR","VT_SAFEARRAY",
54 "VT_CARRAY","VT_USERDEFINED","VT_LPSTR","VT_LPWSTR","32","33","34","35",
55 "VT_RECORD","VT_INT_PTR","VT_UINT_PTR","39","40","41","42","43","44","45",
56 "46","47","48","49","50","51","52","53","54","55","56","57","58","59","60",
57 "61","62","63","VT_FILETIME","VT_BLOB","VT_STREAM","VT_STORAGE",
58 "VT_STREAMED_OBJECT","VT_STORED_OBJECT","VT_BLOB_OBJECT","VT_CF","VT_CLSID"
59 };
60
61 const char * const wine_vflags[16] =
62 {
63 "",
64 "|VT_VECTOR",
65 "|VT_ARRAY",
66 "|VT_VECTOR|VT_ARRAY",
67 "|VT_BYREF",
68 "|VT_VECTOR|VT_ARRAY",
69 "|VT_ARRAY|VT_BYREF",
70 "|VT_VECTOR|VT_ARRAY|VT_BYREF",
71 "|VT_HARDTYPE",
72 "|VT_VECTOR|VT_HARDTYPE",
73 "|VT_ARRAY|VT_HARDTYPE",
74 "|VT_VECTOR|VT_ARRAY|VT_HARDTYPE",
75 "|VT_BYREF|VT_HARDTYPE",
76 "|VT_VECTOR|VT_ARRAY|VT_HARDTYPE",
77 "|VT_ARRAY|VT_BYREF|VT_HARDTYPE",
78 "|VT_VECTOR|VT_ARRAY|VT_BYREF|VT_HARDTYPE",
79 };
80
81 /* Convert a variant from one type to another */
82 static inline HRESULT VARIANT_Coerce(VARIANTARG* pd, LCID lcid, USHORT wFlags,
83 VARIANTARG* ps, VARTYPE vt)
84 {
85 HRESULT res = DISP_E_TYPEMISMATCH;
86 VARTYPE vtFrom = V_TYPE(ps);
87 DWORD dwFlags = 0;
88
89 TRACE("(%p->(%s%s),0x%08x,0x%04x,%p->(%s%s),%s%s)\n", pd, debugstr_VT(pd),
90 debugstr_VF(pd), lcid, wFlags, ps, debugstr_VT(ps), debugstr_VF(ps),
91 debugstr_vt(vt), debugstr_vf(vt));
92
93 if (vt == VT_BSTR || vtFrom == VT_BSTR)
94 {
95 /* All flags passed to low level function are only used for
96 * changing to or from strings. Map these here.
97 */
98 if (wFlags & VARIANT_LOCALBOOL)
99 dwFlags |= VAR_LOCALBOOL;
100 if (wFlags & VARIANT_CALENDAR_HIJRI)
101 dwFlags |= VAR_CALENDAR_HIJRI;
102 if (wFlags & VARIANT_CALENDAR_THAI)
103 dwFlags |= VAR_CALENDAR_THAI;
104 if (wFlags & VARIANT_CALENDAR_GREGORIAN)
105 dwFlags |= VAR_CALENDAR_GREGORIAN;
106 if (wFlags & VARIANT_NOUSEROVERRIDE)
107 dwFlags |= LOCALE_NOUSEROVERRIDE;
108 if (wFlags & VARIANT_USE_NLS)
109 dwFlags |= LOCALE_USE_NLS;
110 }
111
112 /* Map int/uint to i4/ui4 */
113 if (vt == VT_INT)
114 vt = VT_I4;
115 else if (vt == VT_UINT)
116 vt = VT_UI4;
117
118 if (vtFrom == VT_INT)
119 vtFrom = VT_I4;
120 else if (vtFrom == VT_UINT)
121 vtFrom = VT_UI4;
122
123 if (vt == vtFrom)
124 return VariantCopy(pd, ps);
125
126 if (wFlags & VARIANT_NOVALUEPROP && vtFrom == VT_DISPATCH && vt != VT_UNKNOWN)
127 {
128 /* VARIANT_NOVALUEPROP prevents IDispatch objects from being coerced by
129 * accessing the default object property.
130 */
131 return DISP_E_TYPEMISMATCH;
132 }
133
134 switch (vt)
135 {
136 case VT_EMPTY:
137 if (vtFrom == VT_NULL)
138 return DISP_E_TYPEMISMATCH;
139 /* ... Fall through */
140 case VT_NULL:
141 if (vtFrom <= VT_UINT && vtFrom != (VARTYPE)15 && vtFrom != VT_ERROR)
142 {
143 res = VariantClear( pd );
144 if (vt == VT_NULL && SUCCEEDED(res))
145 V_VT(pd) = VT_NULL;
146 }
147 return res;
148
149 case VT_I1:
150 switch (vtFrom)
151 {
152 case VT_EMPTY: V_I1(pd) = 0; return S_OK;
153 case VT_I2: return VarI1FromI2(V_I2(ps), &V_I1(pd));
154 case VT_I4: return VarI1FromI4(V_I4(ps), &V_I1(pd));
155 case VT_UI1: V_I1(pd) = V_UI1(ps); return S_OK;
156 case VT_UI2: return VarI1FromUI2(V_UI2(ps), &V_I1(pd));
157 case VT_UI4: return VarI1FromUI4(V_UI4(ps), &V_I1(pd));
158 case VT_I8: return VarI1FromI8(V_I8(ps), &V_I1(pd));
159 case VT_UI8: return VarI1FromUI8(V_UI8(ps), &V_I1(pd));
160 case VT_R4: return VarI1FromR4(V_R4(ps), &V_I1(pd));
161 case VT_R8: return VarI1FromR8(V_R8(ps), &V_I1(pd));
162 case VT_DATE: return VarI1FromDate(V_DATE(ps), &V_I1(pd));
163 case VT_BOOL: return VarI1FromBool(V_BOOL(ps), &V_I1(pd));
164 case VT_CY: return VarI1FromCy(V_CY(ps), &V_I1(pd));
165 case VT_DECIMAL: return VarI1FromDec(&V_DECIMAL(ps), &V_I1(pd) );
166 case VT_DISPATCH: return VarI1FromDisp(V_DISPATCH(ps), lcid, &V_I1(pd) );
167 case VT_BSTR: return VarI1FromStr(V_BSTR(ps), lcid, dwFlags, &V_I1(pd) );
168 }
169 break;
170
171 case VT_I2:
172 switch (vtFrom)
173 {
174 case VT_EMPTY: V_I2(pd) = 0; return S_OK;
175 case VT_I1: return VarI2FromI1(V_I1(ps), &V_I2(pd));
176 case VT_I4: return VarI2FromI4(V_I4(ps), &V_I2(pd));
177 case VT_UI1: return VarI2FromUI1(V_UI1(ps), &V_I2(pd));
178 case VT_UI2: V_I2(pd) = V_UI2(ps); return S_OK;
179 case VT_UI4: return VarI2FromUI4(V_UI4(ps), &V_I2(pd));
180 case VT_I8: return VarI2FromI8(V_I8(ps), &V_I2(pd));
181 case VT_UI8: return VarI2FromUI8(V_UI8(ps), &V_I2(pd));
182 case VT_R4: return VarI2FromR4(V_R4(ps), &V_I2(pd));
183 case VT_R8: return VarI2FromR8(V_R8(ps), &V_I2(pd));
184 case VT_DATE: return VarI2FromDate(V_DATE(ps), &V_I2(pd));
185 case VT_BOOL: return VarI2FromBool(V_BOOL(ps), &V_I2(pd));
186 case VT_CY: return VarI2FromCy(V_CY(ps), &V_I2(pd));
187 case VT_DECIMAL: return VarI2FromDec(&V_DECIMAL(ps), &V_I2(pd));
188 case VT_DISPATCH: return VarI2FromDisp(V_DISPATCH(ps), lcid, &V_I2(pd));
189 case VT_BSTR: return VarI2FromStr(V_BSTR(ps), lcid, dwFlags, &V_I2(pd));
190 }
191 break;
192
193 case VT_I4:
194 switch (vtFrom)
195 {
196 case VT_EMPTY: V_I4(pd) = 0; return S_OK;
197 case VT_I1: return VarI4FromI1(V_I1(ps), &V_I4(pd));
198 case VT_I2: return VarI4FromI2(V_I2(ps), &V_I4(pd));
199 case VT_UI1: return VarI4FromUI1(V_UI1(ps), &V_I4(pd));
200 case VT_UI2: return VarI4FromUI2(V_UI2(ps), &V_I4(pd));
201 case VT_UI4: V_I4(pd) = V_UI4(ps); return S_OK;
202 case VT_I8: return VarI4FromI8(V_I8(ps), &V_I4(pd));
203 case VT_UI8: return VarI4FromUI8(V_UI8(ps), &V_I4(pd));
204 case VT_R4: return VarI4FromR4(V_R4(ps), &V_I4(pd));
205 case VT_R8: return VarI4FromR8(V_R8(ps), &V_I4(pd));
206 case VT_DATE: return VarI4FromDate(V_DATE(ps), &V_I4(pd));
207 case VT_BOOL: return VarI4FromBool(V_BOOL(ps), &V_I4(pd));
208 case VT_CY: return VarI4FromCy(V_CY(ps), &V_I4(pd));
209 case VT_DECIMAL: return VarI4FromDec(&V_DECIMAL(ps), &V_I4(pd));
210 case VT_DISPATCH: return VarI4FromDisp(V_DISPATCH(ps), lcid, &V_I4(pd));
211 case VT_BSTR: return VarI4FromStr(V_BSTR(ps), lcid, dwFlags, &V_I4(pd));
212 }
213 break;
214
215 case VT_UI1:
216 switch (vtFrom)
217 {
218 case VT_EMPTY: V_UI1(pd) = 0; return S_OK;
219 case VT_I1: V_UI1(pd) = V_I1(ps); return S_OK;
220 case VT_I2: return VarUI1FromI2(V_I2(ps), &V_UI1(pd));
221 case VT_I4: return VarUI1FromI4(V_I4(ps), &V_UI1(pd));
222 case VT_UI2: return VarUI1FromUI2(V_UI2(ps), &V_UI1(pd));
223 case VT_UI4: return VarUI1FromUI4(V_UI4(ps), &V_UI1(pd));
224 case VT_I8: return VarUI1FromI8(V_I8(ps), &V_UI1(pd));
225 case VT_UI8: return VarUI1FromUI8(V_UI8(ps), &V_UI1(pd));
226 case VT_R4: return VarUI1FromR4(V_R4(ps), &V_UI1(pd));
227 case VT_R8: return VarUI1FromR8(V_R8(ps), &V_UI1(pd));
228 case VT_DATE: return VarUI1FromDate(V_DATE(ps), &V_UI1(pd));
229 case VT_BOOL: return VarUI1FromBool(V_BOOL(ps), &V_UI1(pd));
230 case VT_CY: return VarUI1FromCy(V_CY(ps), &V_UI1(pd));
231 case VT_DECIMAL: return VarUI1FromDec(&V_DECIMAL(ps), &V_UI1(pd));
232 case VT_DISPATCH: return VarUI1FromDisp(V_DISPATCH(ps), lcid, &V_UI1(pd));
233 case VT_BSTR: return VarUI1FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI1(pd));
234 }
235 break;
236
237 case VT_UI2:
238 switch (vtFrom)
239 {
240 case VT_EMPTY: V_UI2(pd) = 0; return S_OK;
241 case VT_I1: return VarUI2FromI1(V_I1(ps), &V_UI2(pd));
242 case VT_I2: V_UI2(pd) = V_I2(ps); return S_OK;
243 case VT_I4: return VarUI2FromI4(V_I4(ps), &V_UI2(pd));
244 case VT_UI1: return VarUI2FromUI1(V_UI1(ps), &V_UI2(pd));
245 case VT_UI4: return VarUI2FromUI4(V_UI4(ps), &V_UI2(pd));
246 case VT_I8: return VarUI4FromI8(V_I8(ps), &V_UI4(pd));
247 case VT_UI8: return VarUI4FromUI8(V_UI8(ps), &V_UI4(pd));
248 case VT_R4: return VarUI2FromR4(V_R4(ps), &V_UI2(pd));
249 case VT_R8: return VarUI2FromR8(V_R8(ps), &V_UI2(pd));
250 case VT_DATE: return VarUI2FromDate(V_DATE(ps), &V_UI2(pd));
251 case VT_BOOL: return VarUI2FromBool(V_BOOL(ps), &V_UI2(pd));
252 case VT_CY: return VarUI2FromCy(V_CY(ps), &V_UI2(pd));
253 case VT_DECIMAL: return VarUI2FromDec(&V_DECIMAL(ps), &V_UI2(pd));
254 case VT_DISPATCH: return VarUI2FromDisp(V_DISPATCH(ps), lcid, &V_UI2(pd));
255 case VT_BSTR: return VarUI2FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI2(pd));
256 }
257 break;
258
259 case VT_UI4:
260 switch (vtFrom)
261 {
262 case VT_EMPTY: V_UI4(pd) = 0; return S_OK;
263 case VT_I1: return VarUI4FromI1(V_I1(ps), &V_UI4(pd));
264 case VT_I2: return VarUI4FromI2(V_I2(ps), &V_UI4(pd));
265 case VT_I4: V_UI4(pd) = V_I4(ps); return S_OK;
266 case VT_UI1: return VarUI4FromUI1(V_UI1(ps), &V_UI4(pd));
267 case VT_UI2: return VarUI4FromUI2(V_UI2(ps), &V_UI4(pd));
268 case VT_I8: return VarUI4FromI8(V_I8(ps), &V_UI4(pd));
269 case VT_UI8: return VarUI4FromUI8(V_UI8(ps), &V_UI4(pd));
270 case VT_R4: return VarUI4FromR4(V_R4(ps), &V_UI4(pd));
271 case VT_R8: return VarUI4FromR8(V_R8(ps), &V_UI4(pd));
272 case VT_DATE: return VarUI4FromDate(V_DATE(ps), &V_UI4(pd));
273 case VT_BOOL: return VarUI4FromBool(V_BOOL(ps), &V_UI4(pd));
274 case VT_CY: return VarUI4FromCy(V_CY(ps), &V_UI4(pd));
275 case VT_DECIMAL: return VarUI4FromDec(&V_DECIMAL(ps), &V_UI4(pd));
276 case VT_DISPATCH: return VarUI4FromDisp(V_DISPATCH(ps), lcid, &V_UI4(pd));
277 case VT_BSTR: return VarUI4FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI4(pd));
278 }
279 break;
280
281 case VT_UI8:
282 switch (vtFrom)
283 {
284 case VT_EMPTY: V_UI8(pd) = 0; return S_OK;
285 case VT_I4: if (V_I4(ps) < 0) return DISP_E_OVERFLOW; V_UI8(pd) = V_I4(ps); return S_OK;
286 case VT_I1: return VarUI8FromI1(V_I1(ps), &V_UI8(pd));
287 case VT_I2: return VarUI8FromI2(V_I2(ps), &V_UI8(pd));
288 case VT_UI1: return VarUI8FromUI1(V_UI1(ps), &V_UI8(pd));
289 case VT_UI2: return VarUI8FromUI2(V_UI2(ps), &V_UI8(pd));
290 case VT_UI4: return VarUI8FromUI4(V_UI4(ps), &V_UI8(pd));
291 case VT_I8: V_UI8(pd) = V_I8(ps); return S_OK;
292 case VT_R4: return VarUI8FromR4(V_R4(ps), &V_UI8(pd));
293 case VT_R8: return VarUI8FromR8(V_R8(ps), &V_UI8(pd));
294 case VT_DATE: return VarUI8FromDate(V_DATE(ps), &V_UI8(pd));
295 case VT_BOOL: return VarUI8FromBool(V_BOOL(ps), &V_UI8(pd));
296 case VT_CY: return VarUI8FromCy(V_CY(ps), &V_UI8(pd));
297 case VT_DECIMAL: return VarUI8FromDec(&V_DECIMAL(ps), &V_UI8(pd));
298 case VT_DISPATCH: return VarUI8FromDisp(V_DISPATCH(ps), lcid, &V_UI8(pd));
299 case VT_BSTR: return VarUI8FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI8(pd));
300 }
301 break;
302
303 case VT_I8:
304 switch (vtFrom)
305 {
306 case VT_EMPTY: V_I8(pd) = 0; return S_OK;
307 case VT_I4: V_I8(pd) = V_I4(ps); return S_OK;
308 case VT_I1: return VarI8FromI1(V_I1(ps), &V_I8(pd));
309 case VT_I2: return VarI8FromI2(V_I2(ps), &V_I8(pd));
310 case VT_UI1: return VarI8FromUI1(V_UI1(ps), &V_I8(pd));
311 case VT_UI2: return VarI8FromUI2(V_UI2(ps), &V_I8(pd));
312 case VT_UI4: return VarI8FromUI4(V_UI4(ps), &V_I8(pd));
313 case VT_UI8: V_I8(pd) = V_UI8(ps); return S_OK;
314 case VT_R4: return VarI8FromR4(V_R4(ps), &V_I8(pd));
315 case VT_R8: return VarI8FromR8(V_R8(ps), &V_I8(pd));
316 case VT_DATE: return VarI8FromDate(V_DATE(ps), &V_I8(pd));
317 case VT_BOOL: return VarI8FromBool(V_BOOL(ps), &V_I8(pd));
318 case VT_CY: return VarI8FromCy(V_CY(ps), &V_I8(pd));
319 case VT_DECIMAL: return VarI8FromDec(&V_DECIMAL(ps), &V_I8(pd));
320 case VT_DISPATCH: return VarI8FromDisp(V_DISPATCH(ps), lcid, &V_I8(pd));
321 case VT_BSTR: return VarI8FromStr(V_BSTR(ps), lcid, dwFlags, &V_I8(pd));
322 }
323 break;
324
325 case VT_R4:
326 switch (vtFrom)
327 {
328 case VT_EMPTY: V_R4(pd) = 0.0f; return S_OK;
329 case VT_I1: return VarR4FromI1(V_I1(ps), &V_R4(pd));
330 case VT_I2: return VarR4FromI2(V_I2(ps), &V_R4(pd));
331 case VT_I4: return VarR4FromI4(V_I4(ps), &V_R4(pd));
332 case VT_UI1: return VarR4FromUI1(V_UI1(ps), &V_R4(pd));
333 case VT_UI2: return VarR4FromUI2(V_UI2(ps), &V_R4(pd));
334 case VT_UI4: return VarR4FromUI4(V_UI4(ps), &V_R4(pd));
335 case VT_I8: return VarR4FromI8(V_I8(ps), &V_R4(pd));
336 case VT_UI8: return VarR4FromUI8(V_UI8(ps), &V_R4(pd));
337 case VT_R8: return VarR4FromR8(V_R8(ps), &V_R4(pd));
338 case VT_DATE: return VarR4FromDate(V_DATE(ps), &V_R4(pd));
339 case VT_BOOL: return VarR4FromBool(V_BOOL(ps), &V_R4(pd));
340 case VT_CY: return VarR4FromCy(V_CY(ps), &V_R4(pd));
341 case VT_DECIMAL: return VarR4FromDec(&V_DECIMAL(ps), &V_R4(pd));
342 case VT_DISPATCH: return VarR4FromDisp(V_DISPATCH(ps), lcid, &V_R4(pd));
343 case VT_BSTR: return VarR4FromStr(V_BSTR(ps), lcid, dwFlags, &V_R4(pd));
344 }
345 break;
346
347 case VT_R8:
348 switch (vtFrom)
349 {
350 case VT_EMPTY: V_R8(pd) = 0.0; return S_OK;
351 case VT_I1: return VarR8FromI1(V_I1(ps), &V_R8(pd));
352 case VT_I2: return VarR8FromI2(V_I2(ps), &V_R8(pd));
353 case VT_I4: return VarR8FromI4(V_I4(ps), &V_R8(pd));
354 case VT_UI1: return VarR8FromUI1(V_UI1(ps), &V_R8(pd));
355 case VT_UI2: return VarR8FromUI2(V_UI2(ps), &V_R8(pd));
356 case VT_UI4: return VarR8FromUI4(V_UI4(ps), &V_R8(pd));
357 case VT_I8: return VarR8FromI8(V_I8(ps), &V_R8(pd));
358 case VT_UI8: return VarR8FromUI8(V_UI8(ps), &V_R8(pd));
359 case VT_R4: return VarR8FromR4(V_R4(ps), &V_R8(pd));
360 case VT_DATE: return VarR8FromDate(V_DATE(ps), &V_R8(pd));
361 case VT_BOOL: return VarR8FromBool(V_BOOL(ps), &V_R8(pd));
362 case VT_CY: return VarR8FromCy(V_CY(ps), &V_R8(pd));
363 case VT_DECIMAL: return VarR8FromDec(&V_DECIMAL(ps), &V_R8(pd));
364 case VT_DISPATCH: return VarR8FromDisp(V_DISPATCH(ps), lcid, &V_R8(pd));
365 case VT_BSTR: return VarR8FromStr(V_BSTR(ps), lcid, dwFlags, &V_R8(pd));
366 }
367 break;
368
369 case VT_DATE:
370 switch (vtFrom)
371 {
372 case VT_EMPTY: V_DATE(pd) = 0.0; return S_OK;
373 case VT_I1: return VarDateFromI1(V_I1(ps), &V_DATE(pd));
374 case VT_I2: return VarDateFromI2(V_I2(ps), &V_DATE(pd));
375 case VT_I4: return VarDateFromI4(V_I4(ps), &V_DATE(pd));
376 case VT_UI1: return VarDateFromUI1(V_UI1(ps), &V_DATE(pd));
377 case VT_UI2: return VarDateFromUI2(V_UI2(ps), &V_DATE(pd));
378 case VT_UI4: return VarDateFromUI4(V_UI4(ps), &V_DATE(pd));
379 case VT_I8: return VarDateFromI8(V_I8(ps), &V_DATE(pd));
380 case VT_UI8: return VarDateFromUI8(V_UI8(ps), &V_DATE(pd));
381 case VT_R4: return VarDateFromR4(V_R4(ps), &V_DATE(pd));
382 case VT_R8: return VarDateFromR8(V_R8(ps), &V_DATE(pd));
383 case VT_BOOL: return VarDateFromBool(V_BOOL(ps), &V_DATE(pd));
384 case VT_CY: return VarDateFromCy(V_CY(ps), &V_DATE(pd));
385 case VT_DECIMAL: return VarDateFromDec(&V_DECIMAL(ps), &V_DATE(pd));
386 case VT_DISPATCH: return VarDateFromDisp(V_DISPATCH(ps), lcid, &V_DATE(pd));
387 case VT_BSTR: return VarDateFromStr(V_BSTR(ps), lcid, dwFlags, &V_DATE(pd));
388 }
389 break;
390
391 case VT_BOOL:
392 switch (vtFrom)
393 {
394 case VT_EMPTY: V_BOOL(pd) = 0; return S_OK;
395 case VT_I1: return VarBoolFromI1(V_I1(ps), &V_BOOL(pd));
396 case VT_I2: return VarBoolFromI2(V_I2(ps), &V_BOOL(pd));
397 case VT_I4: return VarBoolFromI4(V_I4(ps), &V_BOOL(pd));
398 case VT_UI1: return VarBoolFromUI1(V_UI1(ps), &V_BOOL(pd));
399 case VT_UI2: return VarBoolFromUI2(V_UI2(ps), &V_BOOL(pd));
400 case VT_UI4: return VarBoolFromUI4(V_UI4(ps), &V_BOOL(pd));
401 case VT_I8: return VarBoolFromI8(V_I8(ps), &V_BOOL(pd));
402 case VT_UI8: return VarBoolFromUI8(V_UI8(ps), &V_BOOL(pd));
403 case VT_R4: return VarBoolFromR4(V_R4(ps), &V_BOOL(pd));
404 case VT_R8: return VarBoolFromR8(V_R8(ps), &V_BOOL(pd));
405 case VT_DATE: return VarBoolFromDate(V_DATE(ps), &V_BOOL(pd));
406 case VT_CY: return VarBoolFromCy(V_CY(ps), &V_BOOL(pd));
407 case VT_DECIMAL: return VarBoolFromDec(&V_DECIMAL(ps), &V_BOOL(pd));
408 case VT_DISPATCH: return VarBoolFromDisp(V_DISPATCH(ps), lcid, &V_BOOL(pd));
409 case VT_BSTR: return VarBoolFromStr(V_BSTR(ps), lcid, dwFlags, &V_BOOL(pd));
410 }
411 break;
412
413 case VT_BSTR:
414 switch (vtFrom)
415 {
416 case VT_EMPTY:
417 V_BSTR(pd) = SysAllocStringLen(NULL, 0);
418 return V_BSTR(pd) ? S_OK : E_OUTOFMEMORY;
419 case VT_BOOL:
420 if (wFlags & (VARIANT_ALPHABOOL|VARIANT_LOCALBOOL))
421 return VarBstrFromBool(V_BOOL(ps), lcid, dwFlags, &V_BSTR(pd));
422 return VarBstrFromI2(V_BOOL(ps), lcid, dwFlags, &V_BSTR(pd));
423 case VT_I1: return VarBstrFromI1(V_I1(ps), lcid, dwFlags, &V_BSTR(pd));
424 case VT_I2: return VarBstrFromI2(V_I2(ps), lcid, dwFlags, &V_BSTR(pd));
425 case VT_I4: return VarBstrFromI4(V_I4(ps), lcid, dwFlags, &V_BSTR(pd));
426 case VT_UI1: return VarBstrFromUI1(V_UI1(ps), lcid, dwFlags, &V_BSTR(pd));
427 case VT_UI2: return VarBstrFromUI2(V_UI2(ps), lcid, dwFlags, &V_BSTR(pd));
428 case VT_UI4: return VarBstrFromUI4(V_UI4(ps), lcid, dwFlags, &V_BSTR(pd));
429 case VT_I8: return VarBstrFromI8(V_I8(ps), lcid, dwFlags, &V_BSTR(pd));
430 case VT_UI8: return VarBstrFromUI8(V_UI8(ps), lcid, dwFlags, &V_BSTR(pd));
431 case VT_R4: return VarBstrFromR4(V_R4(ps), lcid, dwFlags, &V_BSTR(pd));
432 case VT_R8: return VarBstrFromR8(V_R8(ps), lcid, dwFlags, &V_BSTR(pd));
433 case VT_DATE: return VarBstrFromDate(V_DATE(ps), lcid, dwFlags, &V_BSTR(pd));
434 case VT_CY: return VarBstrFromCy(V_CY(ps), lcid, dwFlags, &V_BSTR(pd));
435 case VT_DECIMAL: return VarBstrFromDec(&V_DECIMAL(ps), lcid, dwFlags, &V_BSTR(pd));
436 case VT_DISPATCH: return VarBstrFromDisp(V_DISPATCH(ps), lcid, dwFlags, &V_BSTR(pd));
437 }
438 break;
439
440 case VT_CY:
441 switch (vtFrom)
442 {
443 case VT_EMPTY: V_CY(pd).int64 = 0; return S_OK;
444 case VT_I1: return VarCyFromI1(V_I1(ps), &V_CY(pd));
445 case VT_I2: return VarCyFromI2(V_I2(ps), &V_CY(pd));
446 case VT_I4: return VarCyFromI4(V_I4(ps), &V_CY(pd));
447 case VT_UI1: return VarCyFromUI1(V_UI1(ps), &V_CY(pd));
448 case VT_UI2: return VarCyFromUI2(V_UI2(ps), &V_CY(pd));
449 case VT_UI4: return VarCyFromUI4(V_UI4(ps), &V_CY(pd));
450 case VT_I8: return VarCyFromI8(V_I8(ps), &V_CY(pd));
451 case VT_UI8: return VarCyFromUI8(V_UI8(ps), &V_CY(pd));
452 case VT_R4: return VarCyFromR4(V_R4(ps), &V_CY(pd));
453 case VT_R8: return VarCyFromR8(V_R8(ps), &V_CY(pd));
454 case VT_DATE: return VarCyFromDate(V_DATE(ps), &V_CY(pd));
455 case VT_BOOL: return VarCyFromBool(V_BOOL(ps), &V_CY(pd));
456 case VT_DECIMAL: return VarCyFromDec(&V_DECIMAL(ps), &V_CY(pd));
457 case VT_DISPATCH: return VarCyFromDisp(V_DISPATCH(ps), lcid, &V_CY(pd));
458 case VT_BSTR: return VarCyFromStr(V_BSTR(ps), lcid, dwFlags, &V_CY(pd));
459 }
460 break;
461
462 case VT_DECIMAL:
463 switch (vtFrom)
464 {
465 case VT_EMPTY:
466 case VT_BOOL:
467 DEC_SIGNSCALE(&V_DECIMAL(pd)) = SIGNSCALE(DECIMAL_POS,0);
468 DEC_HI32(&V_DECIMAL(pd)) = 0;
469 DEC_MID32(&V_DECIMAL(pd)) = 0;
470 /* VarDecFromBool() coerces to -1/0, ChangeTypeEx() coerces to 1/0.
471 * VT_NULL and VT_EMPTY always give a 0 value.
472 */
473 DEC_LO32(&V_DECIMAL(pd)) = vtFrom == VT_BOOL && V_BOOL(ps) ? 1 : 0;
474 return S_OK;
475 case VT_I1: return VarDecFromI1(V_I1(ps), &V_DECIMAL(pd));
476 case VT_I2: return VarDecFromI2(V_I2(ps), &V_DECIMAL(pd));
477 case VT_I4: return VarDecFromI4(V_I4(ps), &V_DECIMAL(pd));
478 case VT_UI1: return VarDecFromUI1(V_UI1(ps), &V_DECIMAL(pd));
479 case VT_UI2: return VarDecFromUI2(V_UI2(ps), &V_DECIMAL(pd));
480 case VT_UI4: return VarDecFromUI4(V_UI4(ps), &V_DECIMAL(pd));
481 case VT_I8: return VarDecFromI8(V_I8(ps), &V_DECIMAL(pd));
482 case VT_UI8: return VarDecFromUI8(V_UI8(ps), &V_DECIMAL(pd));
483 case VT_R4: return VarDecFromR4(V_R4(ps), &V_DECIMAL(pd));
484 case VT_R8: return VarDecFromR8(V_R8(ps), &V_DECIMAL(pd));
485 case VT_DATE: return VarDecFromDate(V_DATE(ps), &V_DECIMAL(pd));
486 case VT_CY: return VarDecFromCy(V_CY(ps), &V_DECIMAL(pd));
487 case VT_DISPATCH: return VarDecFromDisp(V_DISPATCH(ps), lcid, &V_DECIMAL(pd));
488 case VT_BSTR: return VarDecFromStr(V_BSTR(ps), lcid, dwFlags, &V_DECIMAL(pd));
489 }
490 break;
491
492 case VT_UNKNOWN:
493 switch (vtFrom)
494 {
495 case VT_DISPATCH:
496 if (V_DISPATCH(ps) == NULL)
497 V_UNKNOWN(pd) = NULL;
498 else
499 res = IDispatch_QueryInterface(V_DISPATCH(ps), &IID_IUnknown, (LPVOID*)&V_UNKNOWN(pd));
500 break;
501 }
502 break;
503
504 case VT_DISPATCH:
505 switch (vtFrom)
506 {
507 case VT_UNKNOWN:
508 if (V_UNKNOWN(ps) == NULL)
509 V_DISPATCH(pd) = NULL;
510 else
511 res = IUnknown_QueryInterface(V_UNKNOWN(ps), &IID_IDispatch, (LPVOID*)&V_DISPATCH(pd));
512 break;
513 }
514 break;
515
516 case VT_RECORD:
517 break;
518 }
519 return res;
520 }
521
522 /* Coerce to/from an array */
523 static inline HRESULT VARIANT_CoerceArray(VARIANTARG* pd, VARIANTARG* ps, VARTYPE vt)
524 {
525 if (vt == VT_BSTR && V_VT(ps) == (VT_ARRAY|VT_UI1))
526 return BstrFromVector(V_ARRAY(ps), &V_BSTR(pd));
527
528 if (V_VT(ps) == VT_BSTR && vt == (VT_ARRAY|VT_UI1))
529 return VectorFromBstr(V_BSTR(ps), &V_ARRAY(ps));
530
531 if (V_VT(ps) == vt)
532 return SafeArrayCopy(V_ARRAY(ps), &V_ARRAY(pd));
533
534 return DISP_E_TYPEMISMATCH;
535 }
536
537 /******************************************************************************
538 * Check if a variants type is valid.
539 */
540 static inline HRESULT VARIANT_ValidateType(VARTYPE vt)
541 {
542 VARTYPE vtExtra = vt & VT_EXTRA_TYPE;
543
544 vt &= VT_TYPEMASK;
545
546 if (!(vtExtra & (VT_VECTOR|VT_RESERVED)))
547 {
548 if (vt < VT_VOID || vt == VT_RECORD || vt == VT_CLSID)
549 {
550 if ((vtExtra & (VT_BYREF|VT_ARRAY)) && vt <= VT_NULL)
551 return DISP_E_BADVARTYPE;
552 if (vt != (VARTYPE)15)
553 return S_OK;
554 }
555 }
556 return DISP_E_BADVARTYPE;
557 }
558
559 /******************************************************************************
560 * VariantInit [OLEAUT32.8]
561 *
562 * Initialise a variant.
563 *
564 * PARAMS
565 * pVarg [O] Variant to initialise
566 *
567 * RETURNS
568 * Nothing.
569 *
570 * NOTES
571 * This function simply sets the type of the variant to VT_EMPTY. It does not
572 * free any existing value, use VariantClear() for that.
573 */
574 void WINAPI VariantInit(VARIANTARG* pVarg)
575 {
576 TRACE("(%p)\n", pVarg);
577
578 V_VT(pVarg) = VT_EMPTY; /* Native doesn't set any other fields */
579 }
580
581 /******************************************************************************
582 * VariantClear [OLEAUT32.9]
583 *
584 * Clear a variant.
585 *
586 * PARAMS
587 * pVarg [I/O] Variant to clear
588 *
589 * RETURNS
590 * Success: S_OK. Any previous value in pVarg is freed and its type is set to VT_EMPTY.
591 * Failure: DISP_E_BADVARTYPE, if the variant is not a valid variant type.
592 */
593 HRESULT WINAPI VariantClear(VARIANTARG* pVarg)
594 {
595 HRESULT hres = S_OK;
596
597 TRACE("(%p->(%s%s))\n", pVarg, debugstr_VT(pVarg), debugstr_VF(pVarg));
598
599 hres = VARIANT_ValidateType(V_VT(pVarg));
600
601 if (SUCCEEDED(hres))
602 {
603 if (!V_ISBYREF(pVarg))
604 {
605 if (V_ISARRAY(pVarg) || V_VT(pVarg) == VT_SAFEARRAY)
606 {
607 if (V_ARRAY(pVarg))
608 hres = SafeArrayDestroy(V_ARRAY(pVarg));
609 }
610 else if (V_VT(pVarg) == VT_BSTR)
611 {
612 SysFreeString(V_BSTR(pVarg));
613 }
614 else if (V_VT(pVarg) == VT_RECORD)
615 {
616 struct __tagBRECORD* pBr = &V_UNION(pVarg,brecVal);
617 if (pBr->pRecInfo)
618 {
619 IRecordInfo_RecordClear(pBr->pRecInfo, pBr->pvRecord);
620 IRecordInfo_Release(pBr->pRecInfo);
621 }
622 }
623 else if (V_VT(pVarg) == VT_DISPATCH ||
624 V_VT(pVarg) == VT_UNKNOWN)
625 {
626 if (V_UNKNOWN(pVarg))
627 IUnknown_Release(V_UNKNOWN(pVarg));
628 }
629 }
630 V_VT(pVarg) = VT_EMPTY;
631 }
632 return hres;
633 }
634
635 /******************************************************************************
636 * Copy an IRecordInfo object contained in a variant.
637 */
638 static HRESULT VARIANT_CopyIRecordInfo(struct __tagBRECORD* pBr)
639 {
640 HRESULT hres = S_OK;
641
642 if (pBr->pRecInfo)
643 {
644 ULONG ulSize;
645
646 hres = IRecordInfo_GetSize(pBr->pRecInfo, &ulSize);
647 if (SUCCEEDED(hres))
648 {
649 PVOID pvRecord = HeapAlloc(GetProcessHeap(), 0, ulSize);
650 if (!pvRecord)
651 hres = E_OUTOFMEMORY;
652 else
653 {
654 memcpy(pvRecord, pBr->pvRecord, ulSize);
655 pBr->pvRecord = pvRecord;
656
657 hres = IRecordInfo_RecordCopy(pBr->pRecInfo, pvRecord, pvRecord);
658 if (SUCCEEDED(hres))
659 IRecordInfo_AddRef(pBr->pRecInfo);
660 }
661 }
662 }
663 else if (pBr->pvRecord)
664 hres = E_INVALIDARG;
665 return hres;
666 }
667
668 /******************************************************************************
669 * VariantCopy [OLEAUT32.10]
670 *
671 * Copy a variant.
672 *
673 * PARAMS
674 * pvargDest [O] Destination for copy
675 * pvargSrc [I] Source variant to copy
676 *
677 * RETURNS
678 * Success: S_OK. pvargDest contains a copy of pvargSrc.
679 * Failure: DISP_E_BADVARTYPE, if either variant has an invalid type.
680 * E_OUTOFMEMORY, if memory cannot be allocated. Otherwise an
681 * HRESULT error code from SafeArrayCopy(), IRecordInfo_GetSize(),
682 * or IRecordInfo_RecordCopy(), depending on the type of pvargSrc.
683 *
684 * NOTES
685 * - If pvargSrc == pvargDest, this function does nothing, and succeeds if
686 * pvargSrc is valid. Otherwise, pvargDest is always cleared using
687 * VariantClear() before pvargSrc is copied to it. If clearing pvargDest
688 * fails, so does this function.
689 * - VT_CLSID is a valid type type for pvargSrc, but not for pvargDest.
690 * - For by-value non-intrinsic types, a deep copy is made, i.e. The whole value
691 * is copied rather than just any pointers to it.
692 * - For by-value object types the object pointer is copied and the objects
693 * reference count increased using IUnknown_AddRef().
694 * - For all by-reference types, only the referencing pointer is copied.
695 */
696 HRESULT WINAPI VariantCopy(VARIANTARG* pvargDest, VARIANTARG* pvargSrc)
697 {
698 HRESULT hres = S_OK;
699
700 TRACE("(%p->(%s%s),%p->(%s%s))\n", pvargDest, debugstr_VT(pvargDest),
701 debugstr_VF(pvargDest), pvargSrc, debugstr_VT(pvargSrc),
702 debugstr_VF(pvargSrc));
703
704 if (V_TYPE(pvargSrc) == VT_CLSID || /* VT_CLSID is a special case */
705 FAILED(VARIANT_ValidateType(V_VT(pvargSrc))))
706 return DISP_E_BADVARTYPE;
707
708 if (pvargSrc != pvargDest &&
709 SUCCEEDED(hres = VariantClear(pvargDest)))
710 {
711 *pvargDest = *pvargSrc; /* Shallow copy the value */
712
713 if (!V_ISBYREF(pvargSrc))
714 {
715 if (V_ISARRAY(pvargSrc))
716 {
717 if (V_ARRAY(pvargSrc))
718 hres = SafeArrayCopy(V_ARRAY(pvargSrc), &V_ARRAY(pvargDest));
719 }
720 else if (V_VT(pvargSrc) == VT_BSTR)
721 {
722 V_BSTR(pvargDest) = SysAllocStringByteLen((char*)V_BSTR(pvargSrc), SysStringByteLen(V_BSTR(pvargSrc)));
723 if (!V_BSTR(pvargDest))
724 {
725 TRACE("!V_BSTR(pvargDest), SysAllocStringByteLen() failed to allocate %d bytes\n", SysStringByteLen(V_BSTR(pvargSrc)));
726 hres = E_OUTOFMEMORY;
727 }
728 }
729 else if (V_VT(pvargSrc) == VT_RECORD)
730 {
731 hres = VARIANT_CopyIRecordInfo(&V_UNION(pvargDest,brecVal));
732 }
733 else if (V_VT(pvargSrc) == VT_DISPATCH ||
734 V_VT(pvargSrc) == VT_UNKNOWN)
735 {
736 if (V_UNKNOWN(pvargSrc))
737 IUnknown_AddRef(V_UNKNOWN(pvargSrc));
738 }
739 }
740 }
741 return hres;
742 }
743
744 /* Return the byte size of a variants data */
745 static inline size_t VARIANT_DataSize(const VARIANT* pv)
746 {
747 switch (V_TYPE(pv))
748 {
749 case VT_I1:
750 case VT_UI1: return sizeof(BYTE);
751 case VT_I2:
752 case VT_UI2: return sizeof(SHORT);
753 case VT_INT:
754 case VT_UINT:
755 case VT_I4:
756 case VT_UI4: return sizeof(LONG);
757 case VT_I8:
758 case VT_UI8: return sizeof(LONGLONG);
759 case VT_R4: return sizeof(float);
760 case VT_R8: return sizeof(double);
761 case VT_DATE: return sizeof(DATE);
762 case VT_BOOL: return sizeof(VARIANT_BOOL);
763 case VT_DISPATCH:
764 case VT_UNKNOWN:
765 case VT_BSTR: return sizeof(void*);
766 case VT_CY: return sizeof(CY);
767 case VT_ERROR: return sizeof(SCODE);
768 }
769 TRACE("Shouldn't be called for vt %s%s!\n", debugstr_VT(pv), debugstr_VF(pv));
770 return 0;
771 }
772
773 /******************************************************************************
774 * VariantCopyInd [OLEAUT32.11]
775 *
776 * Copy a variant, dereferencing it if it is by-reference.
777 *
778 * PARAMS
779 * pvargDest [O] Destination for copy
780 * pvargSrc [I] Source variant to copy
781 *
782 * RETURNS
783 * Success: S_OK. pvargDest contains a copy of pvargSrc.
784 * Failure: An HRESULT error code indicating the error.
785 *
786 * NOTES
787 * Failure: DISP_E_BADVARTYPE, if either variant has an invalid by-value type.
788 * E_INVALIDARG, if pvargSrc is an invalid by-reference type.
789 * E_OUTOFMEMORY, if memory cannot be allocated. Otherwise an
790 * HRESULT error code from SafeArrayCopy(), IRecordInfo_GetSize(),
791 * or IRecordInfo_RecordCopy(), depending on the type of pvargSrc.
792 *
793 * NOTES
794 * - If pvargSrc is by-value, this function behaves exactly as VariantCopy().
795 * - If pvargSrc is by-reference, the value copied to pvargDest is the pointed-to
796 * value.
797 * - if pvargSrc == pvargDest, this function dereferences in place. Otherwise,
798 * pvargDest is always cleared using VariantClear() before pvargSrc is copied
799 * to it. If clearing pvargDest fails, so does this function.
800 */
801 HRESULT WINAPI VariantCopyInd(VARIANT* pvargDest, VARIANTARG* pvargSrc)
802 {
803 VARIANTARG vTmp, *pSrc = pvargSrc;
804 VARTYPE vt;
805 HRESULT hres = S_OK;
806
807 TRACE("(%p->(%s%s),%p->(%s%s))\n", pvargDest, debugstr_VT(pvargDest),
808 debugstr_VF(pvargDest), pvargSrc, debugstr_VT(pvargSrc),
809 debugstr_VF(pvargSrc));
810
811 if (!V_ISBYREF(pvargSrc))
812 return VariantCopy(pvargDest, pvargSrc);
813
814 /* Argument checking is more lax than VariantCopy()... */
815 vt = V_TYPE(pvargSrc);
816 if (V_ISARRAY(pvargSrc) ||
817 (vt > VT_NULL && vt != (VARTYPE)15 && vt < VT_VOID &&
818 !(V_VT(pvargSrc) & (VT_VECTOR|VT_RESERVED))))
819 {
820 /* OK */
821 }
822 else
823 return E_INVALIDARG; /* ...And the return value for invalid types differs too */
824
825 if (pvargSrc == pvargDest)
826 {
827 /* In place copy. Use a shallow copy of pvargSrc & init pvargDest.
828 * This avoids an expensive VariantCopy() call - e.g. SafeArrayCopy().
829 */
830 vTmp = *pvargSrc;
831 pSrc = &vTmp;
832 V_VT(pvargDest) = VT_EMPTY;
833 }
834 else
835 {
836 /* Copy into another variant. Free the variant in pvargDest */
837 if (FAILED(hres = VariantClear(pvargDest)))
838 {
839 TRACE("VariantClear() of destination failed\n");
840 return hres;
841 }
842 }
843
844 if (V_ISARRAY(pSrc))
845 {
846 /* Native doesn't check that *V_ARRAYREF(pSrc) is valid */
847 hres = SafeArrayCopy(*V_ARRAYREF(pSrc), &V_ARRAY(pvargDest));
848 }
849 else if (V_VT(pSrc) == (VT_BSTR|VT_BYREF))
850 {
851 /* Native doesn't check that *V_BSTRREF(pSrc) is valid */
852 V_BSTR(pvargDest) = SysAllocStringByteLen((char*)*V_BSTRREF(pSrc), SysStringByteLen(*V_BSTRREF(pSrc)));
853 }
854 else if (V_VT(pSrc) == (VT_RECORD|VT_BYREF))
855 {
856 V_UNION(pvargDest,brecVal) = V_UNION(pvargSrc,brecVal);
857 hres = VARIANT_CopyIRecordInfo(&V_UNION(pvargDest,brecVal));
858 }
859 else if (V_VT(pSrc) == (VT_DISPATCH|VT_BYREF) ||
860 V_VT(pSrc) == (VT_UNKNOWN|VT_BYREF))
861 {
862 /* Native doesn't check that *V_UNKNOWNREF(pSrc) is valid */
863 V_UNKNOWN(pvargDest) = *V_UNKNOWNREF(pSrc);
864 if (*V_UNKNOWNREF(pSrc))
865 IUnknown_AddRef(*V_UNKNOWNREF(pSrc));
866 }
867 else if (V_VT(pSrc) == (VT_VARIANT|VT_BYREF))
868 {
869 /* Native doesn't check that *V_VARIANTREF(pSrc) is valid */
870 if (V_VT(V_VARIANTREF(pSrc)) == (VT_VARIANT|VT_BYREF))
871 hres = E_INVALIDARG; /* Don't dereference more than one level */
872 else
873 hres = VariantCopyInd(pvargDest, V_VARIANTREF(pSrc));
874
875 /* Use the dereferenced variants type value, not VT_VARIANT */
876 goto VariantCopyInd_Return;
877 }
878 else if (V_VT(pSrc) == (VT_DECIMAL|VT_BYREF))
879 {
880 memcpy(&DEC_SCALE(&V_DECIMAL(pvargDest)), &DEC_SCALE(V_DECIMALREF(pSrc)),
881 sizeof(DECIMAL) - sizeof(USHORT));
882 }
883 else
884 {
885 /* Copy the pointed to data into this variant */
886 memcpy(&V_BYREF(pvargDest), V_BYREF(pSrc), VARIANT_DataSize(pSrc));
887 }
888
889 V_VT(pvargDest) = V_VT(pSrc) & ~VT_BYREF;
890
891 VariantCopyInd_Return:
892
893 if (pSrc != pvargSrc)
894 VariantClear(pSrc);
895
896 TRACE("returning 0x%08x, %p->(%s%s)\n", hres, pvargDest,
897 debugstr_VT(pvargDest), debugstr_VF(pvargDest));
898 return hres;
899 }
900
901 /******************************************************************************
902 * VariantChangeType [OLEAUT32.12]
903 *
904 * Change the type of a variant.
905 *
906 * PARAMS
907 * pvargDest [O] Destination for the converted variant
908 * pvargSrc [O] Source variant to change the type of
909 * wFlags [I] VARIANT_ flags from "oleauto.h"
910 * vt [I] Variant type to change pvargSrc into
911 *
912 * RETURNS
913 * Success: S_OK. pvargDest contains the converted value.
914 * Failure: An HRESULT error code describing the failure.
915 *
916 * NOTES
917 * The LCID used for the conversion is LOCALE_USER_DEFAULT.
918 * See VariantChangeTypeEx.
919 */
920 HRESULT WINAPI VariantChangeType(VARIANTARG* pvargDest, VARIANTARG* pvargSrc,
921 USHORT wFlags, VARTYPE vt)
922 {
923 return VariantChangeTypeEx( pvargDest, pvargSrc, LOCALE_USER_DEFAULT, wFlags, vt );
924 }
925
926 /******************************************************************************
927 * VariantChangeTypeEx [OLEAUT32.147]
928 *
929 * Change the type of a variant.
930 *
931 * PARAMS
932 * pvargDest [O] Destination for the converted variant
933 * pvargSrc [O] Source variant to change the type of
934 * lcid [I] LCID for the conversion
935 * wFlags [I] VARIANT_ flags from "oleauto.h"
936 * vt [I] Variant type to change pvargSrc into
937 *
938 * RETURNS
939 * Success: S_OK. pvargDest contains the converted value.
940 * Failure: An HRESULT error code describing the failure.
941 *
942 * NOTES
943 * pvargDest and pvargSrc can point to the same variant to perform an in-place
944 * conversion. If the conversion is successful, pvargSrc will be freed.
945 */
946 HRESULT WINAPI VariantChangeTypeEx(VARIANTARG* pvargDest, VARIANTARG* pvargSrc,
947 LCID lcid, USHORT wFlags, VARTYPE vt)
948 {
949 HRESULT res = S_OK;
950
951 TRACE("(%p->(%s%s),%p->(%s%s),0x%08x,0x%04x,%s%s)\n", pvargDest,
952 debugstr_VT(pvargDest), debugstr_VF(pvargDest), pvargSrc,
953 debugstr_VT(pvargSrc), debugstr_VF(pvargSrc), lcid, wFlags,
954 debugstr_vt(vt), debugstr_vf(vt));
955
956 if (vt == VT_CLSID)
957 res = DISP_E_BADVARTYPE;
958 else
959 {
960 res = VARIANT_ValidateType(V_VT(pvargSrc));
961
962 if (SUCCEEDED(res))
963 {
964 res = VARIANT_ValidateType(vt);
965
966 if (SUCCEEDED(res))
967 {
968 VARIANTARG vTmp, vSrcDeref;
969
970 if(V_ISBYREF(pvargSrc) && !V_BYREF(pvargSrc))
971 res = DISP_E_TYPEMISMATCH;
972 else
973 {
974 V_VT(&vTmp) = VT_EMPTY;
975 V_VT(&vSrcDeref) = VT_EMPTY;
976 VariantClear(&vTmp);
977 VariantClear(&vSrcDeref);
978 }
979
980 if (SUCCEEDED(res))
981 {
982 res = VariantCopyInd(&vSrcDeref, pvargSrc);
983 if (SUCCEEDED(res))
984 {
985 if (V_ISARRAY(&vSrcDeref) || (vt & VT_ARRAY))
986 res = VARIANT_CoerceArray(&vTmp, &vSrcDeref, vt);
987 else
988 res = VARIANT_Coerce(&vTmp, lcid, wFlags, &vSrcDeref, vt);
989
990 if (SUCCEEDED(res)) {
991 V_VT(&vTmp) = vt;
992 VariantCopy(pvargDest, &vTmp);
993 }
994 VariantClear(&vTmp);
995 VariantClear(&vSrcDeref);
996 }
997 }
998 }
999 }
1000 }
1001
1002 TRACE("returning 0x%08x, %p->(%s%s)\n", res, pvargDest,
1003 debugstr_VT(pvargDest), debugstr_VF(pvargDest));
1004 return res;
1005 }
1006
1007 /* Date Conversions */
1008
1009 #define IsLeapYear(y) (((y % 4) == 0) && (((y % 100) != 0) || ((y % 400) == 0)))
1010
1011 /* Convert a VT_DATE value to a Julian Date */
1012 static inline int VARIANT_JulianFromDate(int dateIn)
1013 {
1014 int julianDays = dateIn;
1015
1016 julianDays -= DATE_MIN; /* Convert to + days from 1 Jan 100 AD */
1017 julianDays += 1757585; /* Convert to + days from 23 Nov 4713 BC (Julian) */
1018 return julianDays;
1019 }
1020
1021 /* Convert a Julian Date to a VT_DATE value */
1022 static inline int VARIANT_DateFromJulian(int dateIn)
1023 {
1024 int julianDays = dateIn;
1025
1026 julianDays -= 1757585; /* Convert to + days from 1 Jan 100 AD */
1027 julianDays += DATE_MIN; /* Convert to +/- days from 1 Jan 1899 AD */
1028 return julianDays;
1029 }
1030
1031 /* Convert a Julian date to Day/Month/Year - from PostgreSQL */
1032 static inline void VARIANT_DMYFromJulian(int jd, USHORT *year, USHORT *month, USHORT *day)
1033 {
1034 int j, i, l, n;
1035
1036 l = jd + 68569;
1037 n = l * 4 / 146097;
1038 l -= (n * 146097 + 3) / 4;
1039 i = (4000 * (l + 1)) / 1461001;
1040 l += 31 - (i * 1461) / 4;
1041 j = (l * 80) / 2447;
1042 *day = l - (j * 2447) / 80;
1043 l = j / 11;
1044 *month = (j + 2) - (12 * l);
1045 *year = 100 * (n - 49) + i + l;
1046 }
1047
1048 /* Convert Day/Month/Year to a Julian date - from PostgreSQL */
1049 static inline double VARIANT_JulianFromDMY(USHORT year, USHORT month, USHORT day)
1050 {
1051 int m12 = (month - 14) / 12;
1052
1053 return ((1461 * (year + 4800 + m12)) / 4 + (367 * (month - 2 - 12 * m12)) / 12 -
1054 (3 * ((year + 4900 + m12) / 100)) / 4 + day - 32075);
1055 }
1056
1057 /* Macros for accessing DOS format date/time fields */
1058 #define DOS_YEAR(x) (1980 + (x >> 9))
1059 #define DOS_MONTH(x) ((x >> 5) & 0xf)
1060 #define DOS_DAY(x) (x & 0x1f)
1061 #define DOS_HOUR(x) (x >> 11)
1062 #define DOS_MINUTE(x) ((x >> 5) & 0x3f)
1063 #define DOS_SECOND(x) ((x & 0x1f) << 1)
1064 /* Create a DOS format date/time */
1065 #define DOS_DATE(d,m,y) (d | (m << 5) | ((y-1980) << 9))
1066 #define DOS_TIME(h,m,s) ((s >> 1) | (m << 5) | (h << 11))
1067
1068 /* Roll a date forwards or backwards to correct it */
1069 static HRESULT VARIANT_RollUdate(UDATE *lpUd)
1070 {
1071 static const BYTE days[] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
1072
1073 TRACE("Raw date: %d/%d/%d %d:%d:%d\n", lpUd->st.wDay, lpUd->st.wMonth,
1074 lpUd->st.wYear, lpUd->st.wHour, lpUd->st.wMinute, lpUd->st.wSecond);
1075
1076 /* Years < 100 are treated as 1900 + year */
1077 if (lpUd->st.wYear < 100)
1078 lpUd->st.wYear += 1900;
1079
1080 if (!lpUd->st.wMonth)
1081 {
1082 /* Roll back to December of the previous year */
1083 lpUd->st.wMonth = 12;
1084 lpUd->st.wYear--;
1085 }
1086 else while (lpUd->st.wMonth > 12)
1087 {
1088 /* Roll forward the correct number of months */
1089 lpUd->st.wYear++;
1090 lpUd->st.wMonth -= 12;
1091 }
1092
1093 if (lpUd->st.wYear > 9999 || lpUd->st.wHour > 23 ||
1094 lpUd->st.wMinute > 59 || lpUd->st.wSecond > 59)
1095 return E_INVALIDARG; /* Invalid values */
1096
1097 if (!lpUd->st.wDay)
1098 {
1099 /* Roll back the date one day */
1100 if (lpUd->st.wMonth == 1)
1101 {
1102 /* Roll back to December 31 of the previous year */
1103 lpUd->st.wDay = 31;
1104 lpUd->st.wMonth = 12;
1105 lpUd->st.wYear--;
1106 }
1107 else
1108 {
1109 lpUd->st.wMonth--; /* Previous month */
1110 if (lpUd->st.wMonth == 2 && IsLeapYear(lpUd->st.wYear))
1111 lpUd->st.wDay = 29; /* February has 29 days on leap years */
1112 else
1113 lpUd->st.wDay = days[lpUd->st.wMonth]; /* Last day of the month */
1114 }
1115 }
1116 else if (lpUd->st.wDay > 28)
1117 {
1118 int rollForward = 0;
1119
1120 /* Possibly need to roll the date forward */
1121 if (lpUd->st.wMonth == 2 && IsLeapYear(lpUd->st.wYear))
1122 rollForward = lpUd->st.wDay - 29; /* February has 29 days on leap years */
1123 else
1124 rollForward = lpUd->st.wDay - days[lpUd->st.wMonth];
1125
1126 if (rollForward > 0)
1127 {
1128 lpUd->st.wDay = rollForward;
1129 lpUd->st.wMonth++;
1130 if (lpUd->st.wMonth > 12)
1131 {
1132 lpUd->st.wMonth = 1; /* Roll forward into January of the next year */
1133 lpUd->st.wYear++;
1134 }
1135 }
1136 }
1137 TRACE("Rolled date: %d/%d/%d %d:%d:%d\n", lpUd->st.wDay, lpUd->st.wMonth,
1138 lpUd->st.wYear, lpUd->st.wHour, lpUd->st.wMinute, lpUd->st.wSecond);
1139 return S_OK;
1140 }
1141
1142 /**********************************************************************
1143 * DosDateTimeToVariantTime [OLEAUT32.14]
1144 *
1145 * Convert a Dos format date and time into variant VT_DATE format.
1146 *
1147 * PARAMS
1148 * wDosDate [I] Dos format date
1149 * wDosTime [I] Dos format time
1150 * pDateOut [O] Destination for VT_DATE format
1151 *
1152 * RETURNS
1153 * Success: TRUE. pDateOut contains the converted time.
1154 * Failure: FALSE, if wDosDate or wDosTime are invalid (see notes).
1155 *
1156 * NOTES
1157 * - Dos format dates can only hold dates from 1-Jan-1980 to 31-Dec-2099.
1158 * - Dos format times are accurate to only 2 second precision.
1159 * - The format of a Dos Date is:
1160 *| Bits Values Meaning
1161 *| ---- ------ -------
1162 *| 0-4 1-31 Day of the week. 0 rolls back one day. A value greater than
1163 *| the days in the month rolls forward the extra days.
1164 *| 5-8 1-12 Month of the year. 0 rolls back to December of the previous
1165 *| year. 13-15 are invalid.
1166 *| 9-15 0-119 Year based from 1980 (Max 2099). 120-127 are invalid.
1167 * - The format of a Dos Time is:
1168 *| Bits Values Meaning
1169 *| ---- ------ -------
1170 *| 0-4 0-29 Seconds/2. 30 and 31 are invalid.
1171 *| 5-10 0-59 Minutes. 60-63 are invalid.
1172 *| 11-15 0-23 Hours (24 hour clock). 24-32 are invalid.
1173 */
1174 INT WINAPI DosDateTimeToVariantTime(USHORT wDosDate, USHORT wDosTime,
1175 double *pDateOut)
1176 {
1177 UDATE ud;
1178
1179 TRACE("(0x%x(%d/%d/%d),0x%x(%d:%d:%d),%p)\n",
1180 wDosDate, DOS_YEAR(wDosDate), DOS_MONTH(wDosDate), DOS_DAY(wDosDate),
1181 wDosTime, DOS_HOUR(wDosTime), DOS_MINUTE(wDosTime), DOS_SECOND(wDosTime),
1182 pDateOut);
1183
1184 ud.st.wYear = DOS_YEAR(wDosDate);
1185 ud.st.wMonth = DOS_MONTH(wDosDate);
1186 if (ud.st.wYear > 2099 || ud.st.wMonth > 12)
1187 return FALSE;
1188 ud.st.wDay = DOS_DAY(wDosDate);
1189 ud.st.wHour = DOS_HOUR(wDosTime);
1190 ud.st.wMinute = DOS_MINUTE(wDosTime);
1191 ud.st.wSecond = DOS_SECOND(wDosTime);
1192 ud.st.wDayOfWeek = ud.st.wMilliseconds = 0;
1193
1194 return VarDateFromUdate(&ud, 0, pDateOut) == S_OK;
1195 }
1196
1197 /**********************************************************************
1198 * VariantTimeToDosDateTime [OLEAUT32.13]
1199 *
1200 * Convert a variant format date into a Dos format date and time.
1201 *
1202 * dateIn [I] VT_DATE time format
1203 * pwDosDate [O] Destination for Dos format date
1204 * pwDosTime [O] Destination for Dos format time
1205 *
1206 * RETURNS
1207 * Success: TRUE. pwDosDate and pwDosTime contains the converted values.
1208 * Failure: FALSE, if dateIn cannot be represented in Dos format.
1209 *
1210 * NOTES
1211 * See DosDateTimeToVariantTime() for Dos format details and bugs.
1212 */
1213 INT WINAPI VariantTimeToDosDateTime(double dateIn, USHORT *pwDosDate, USHORT *pwDosTime)
1214 {
1215 UDATE ud;
1216
1217 TRACE("(%g,%p,%p)\n", dateIn, pwDosDate, pwDosTime);
1218
1219 if (FAILED(VarUdateFromDate(dateIn, 0, &ud)))
1220 return FALSE;
1221
1222 if (ud.st.wYear < 1980 || ud.st.wYear > 2099)
1223 return FALSE;
1224
1225 *pwDosDate = DOS_DATE(ud.st.wDay, ud.st.wMonth, ud.st.wYear);
1226 *pwDosTime = DOS_TIME(ud.st.wHour, ud.st.wMinute, ud.st.wSecond);
1227
1228 TRACE("Returning 0x%x(%d/%d/%d), 0x%x(%d:%d:%d)\n",
1229 *pwDosDate, DOS_YEAR(*pwDosDate), DOS_MONTH(*pwDosDate), DOS_DAY(*pwDosDate),
1230 *pwDosTime, DOS_HOUR(*pwDosTime), DOS_MINUTE(*pwDosTime), DOS_SECOND(*pwDosTime));
1231 return TRUE;
1232 }
1233
1234 /***********************************************************************
1235 * SystemTimeToVariantTime [OLEAUT32.184]
1236 *
1237 * Convert a System format date and time into variant VT_DATE format.
1238 *
1239 * PARAMS
1240 * lpSt [I] System format date and time
1241 * pDateOut [O] Destination for VT_DATE format date
1242 *
1243 * RETURNS
1244 * Success: TRUE. *pDateOut contains the converted value.
1245 * Failure: FALSE, if lpSt cannot be represented in VT_DATE format.
1246 */
1247 INT WINAPI SystemTimeToVariantTime(LPSYSTEMTIME lpSt, double *pDateOut)
1248 {
1249 UDATE ud;
1250
1251 TRACE("(%p->%d/%d/%d %d:%d:%d,%p)\n", lpSt, lpSt->wDay, lpSt->wMonth,
1252 lpSt->wYear, lpSt->wHour, lpSt->wMinute, lpSt->wSecond, pDateOut);
1253
1254 if (lpSt->wMonth > 12)
1255 return FALSE;
1256
1257 ud.st = *lpSt;
1258 return VarDateFromUdate(&ud, 0, pDateOut) == S_OK;
1259 }
1260
1261 /***********************************************************************
1262 * VariantTimeToSystemTime [OLEAUT32.185]
1263 *
1264 * Convert a variant VT_DATE into a System format date and time.
1265 *
1266 * PARAMS
1267 * datein [I] Variant VT_DATE format date
1268 * lpSt [O] Destination for System format date and time
1269 *
1270 * RETURNS
1271 * Success: TRUE. *lpSt contains the converted value.
1272 * Failure: FALSE, if dateIn is too large or small.
1273 */
1274 INT WINAPI VariantTimeToSystemTime(double dateIn, LPSYSTEMTIME lpSt)
1275 {
1276 UDATE ud;
1277
1278 TRACE("(%g,%p)\n", dateIn, lpSt);
1279
1280 if (FAILED(VarUdateFromDate(dateIn, 0, &ud)))
1281 return FALSE;
1282
1283 *lpSt = ud.st;
1284 return TRUE;
1285 }
1286
1287 /***********************************************************************
1288 * VarDateFromUdateEx [OLEAUT32.319]
1289 *
1290 * Convert an unpacked format date and time to a variant VT_DATE.
1291 *
1292 * PARAMS
1293 * pUdateIn [I] Unpacked format date and time to convert
1294 * lcid [I] Locale identifier for the conversion
1295 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1296 * pDateOut [O] Destination for variant VT_DATE.
1297 *
1298 * RETURNS
1299 * Success: S_OK. *pDateOut contains the converted value.
1300 * Failure: E_INVALIDARG, if pUdateIn cannot be represented in VT_DATE format.
1301 */
1302 HRESULT WINAPI VarDateFromUdateEx(UDATE *pUdateIn, LCID lcid, ULONG dwFlags, DATE *pDateOut)
1303 {
1304 UDATE ud;
1305 double dateVal;
1306
1307 TRACE("(%p->%d/%d/%d %d:%d:%d:%d %d %d,0x%08x,0x%08x,%p)\n", pUdateIn,
1308 pUdateIn->st.wMonth, pUdateIn->st.wDay, pUdateIn->st.wYear,
1309 pUdateIn->st.wHour, pUdateIn->st.wMinute, pUdateIn->st.wSecond,
1310 pUdateIn->st.wMilliseconds, pUdateIn->st.wDayOfWeek,
1311 pUdateIn->wDayOfYear, lcid, dwFlags, pDateOut);
1312
1313 if (lcid != MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT))
1314 FIXME("lcid possibly not handled, treating as en-us\n");
1315
1316 ud = *pUdateIn;
1317
1318 if (dwFlags & VAR_VALIDDATE)
1319 WARN("Ignoring VAR_VALIDDATE\n");
1320
1321 if (FAILED(VARIANT_RollUdate(&ud)))
1322 return E_INVALIDARG;
1323
1324 /* Date */
1325 dateVal = VARIANT_DateFromJulian(VARIANT_JulianFromDMY(ud.st.wYear, ud.st.wMonth, ud.st.wDay));
1326
1327 /* Time */
1328 dateVal += ud.st.wHour / 24.0;
1329 dateVal += ud.st.wMinute / 1440.0;
1330 dateVal += ud.st.wSecond / 86400.0;
1331 dateVal += ud.st.wMilliseconds / 86400000.0;
1332
1333 TRACE("Returning %g\n", dateVal);
1334 *pDateOut = dateVal;
1335 return S_OK;
1336 }
1337
1338 /***********************************************************************
1339 * VarDateFromUdate [OLEAUT32.330]
1340 *
1341 * Convert an unpacked format date and time to a variant VT_DATE.
1342 *
1343 * PARAMS
1344 * pUdateIn [I] Unpacked format date and time to convert
1345 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1346 * pDateOut [O] Destination for variant VT_DATE.
1347 *
1348 * RETURNS
1349 * Success: S_OK. *pDateOut contains the converted value.
1350 * Failure: E_INVALIDARG, if pUdateIn cannot be represented in VT_DATE format.
1351 *
1352 * NOTES
1353 * This function uses the United States English locale for the conversion. Use
1354 * VarDateFromUdateEx() for alternate locales.
1355 */
1356 HRESULT WINAPI VarDateFromUdate(UDATE *pUdateIn, ULONG dwFlags, DATE *pDateOut)
1357 {
1358 LCID lcid = MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT);
1359
1360 return VarDateFromUdateEx(pUdateIn, lcid, dwFlags, pDateOut);
1361 }
1362
1363 /***********************************************************************
1364 * VarUdateFromDate [OLEAUT32.331]
1365 *
1366 * Convert a variant VT_DATE into an unpacked format date and time.
1367 *
1368 * PARAMS
1369 * datein [I] Variant VT_DATE format date
1370 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1371 * lpUdate [O] Destination for unpacked format date and time
1372 *
1373 * RETURNS
1374 * Success: S_OK. *lpUdate contains the converted value.
1375 * Failure: E_INVALIDARG, if dateIn is too large or small.
1376 */
1377 HRESULT WINAPI VarUdateFromDate(DATE dateIn, ULONG dwFlags, UDATE *lpUdate)
1378 {
1379 /* Cumulative totals of days per month */
1380 static const USHORT cumulativeDays[] =
1381 {
1382 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
1383 };
1384 double datePart, timePart;
1385 int julianDays;
1386
1387 TRACE("(%g,0x%08x,%p)\n", dateIn, dwFlags, lpUdate);
1388
1389 if (dateIn <= (DATE_MIN - 1.0) || dateIn >= (DATE_MAX + 1.0))
1390 return E_INVALIDARG;
1391
1392 datePart = dateIn < 0.0 ? ceil(dateIn) : floor(dateIn);
1393 /* Compensate for int truncation (always downwards) */
1394 timePart = dateIn - datePart + 0.00000000001;
1395 if (timePart >= 1.0)
1396 timePart -= 0.00000000001;
1397
1398 /* Date */
1399 julianDays = VARIANT_JulianFromDate(dateIn);
1400 VARIANT_DMYFromJulian(julianDays, &lpUdate->st.wYear, &lpUdate->st.wMonth,
1401 &lpUdate->st.wDay);
1402
1403 datePart = (datePart + 1.5) / 7.0;
1404 lpUdate->st.wDayOfWeek = (datePart - floor(datePart)) * 7;
1405 if (lpUdate->st.wDayOfWeek == 0)
1406 lpUdate->st.wDayOfWeek = 5;
1407 else if (lpUdate->st.wDayOfWeek == 1)
1408 lpUdate->st.wDayOfWeek = 6;
1409 else
1410 lpUdate->st.wDayOfWeek -= 2;
1411
1412 if (lpUdate->st.wMonth > 2 && IsLeapYear(lpUdate->st.wYear))
1413 lpUdate->wDayOfYear = 1; /* After February, in a leap year */
1414 else
1415 lpUdate->wDayOfYear = 0;
1416
1417 lpUdate->wDayOfYear += cumulativeDays[lpUdate->st.wMonth];
1418 lpUdate->wDayOfYear += lpUdate->st.wDay;
1419
1420 /* Time */
1421 timePart *= 24.0;
1422 lpUdate->st.wHour = timePart;
1423 timePart -= lpUdate->st.wHour;
1424 timePart *= 60.0;
1425 lpUdate->st.wMinute = timePart;
1426 timePart -= lpUdate->st.wMinute;
1427 timePart *= 60.0;
1428 lpUdate->st.wSecond = timePart;
1429 timePart -= lpUdate->st.wSecond;
1430 lpUdate->st.wMilliseconds = 0;
1431 if (timePart > 0.5)
1432 {
1433 /* Round the milliseconds, adjusting the time/date forward if needed */
1434 if (lpUdate->st.wSecond < 59)
1435 lpUdate->st.wSecond++;
1436 else
1437 {
1438 lpUdate->st.wSecond = 0;
1439 if (lpUdate->st.wMinute < 59)
1440 lpUdate->st.wMinute++;
1441 else
1442 {
1443 lpUdate->st.wMinute = 0;
1444 if (lpUdate->st.wHour < 23)
1445 lpUdate->st.wHour++;
1446 else
1447 {
1448 lpUdate->st.wHour = 0;
1449 /* Roll over a whole day */
1450 if (++lpUdate->st.wDay > 28)
1451 VARIANT_RollUdate(lpUdate);
1452 }
1453 }
1454 }
1455 }
1456 return S_OK;
1457 }
1458
1459 #define GET_NUMBER_TEXT(fld,name) \
1460 buff[0] = 0; \
1461 if (!GetLocaleInfoW(lcid, lctype|fld, buff, 2)) \
1462 WARN("buffer too small for " #fld "\n"); \
1463 else \
1464 if (buff[0]) lpChars->name = buff[0]; \
1465 TRACE("lcid 0x%x, " #name "=%d '%c'\n", lcid, lpChars->name, lpChars->name)
1466
1467 /* Get the valid number characters for an lcid */
1468 static void VARIANT_GetLocalisedNumberChars(VARIANT_NUMBER_CHARS *lpChars, LCID lcid, DWORD dwFlags)
1469 {
1470 static const VARIANT_NUMBER_CHARS defaultChars = { '-','+','.',',','$',0,'.',',' };
1471 static CRITICAL_SECTION csLastChars = { NULL, -1, 0, 0, 0, 0 };
1472 static VARIANT_NUMBER_CHARS lastChars;
1473 static LCID lastLcid = -1;
1474 static DWORD lastFlags = 0;
1475 LCTYPE lctype = dwFlags & LOCALE_NOUSEROVERRIDE;
1476 WCHAR buff[4];
1477
1478 /* To make caching thread-safe, a critical section is needed */
1479 EnterCriticalSection(&csLastChars);
1480
1481 /* Asking for default locale entries is very expensive: It is a registry
1482 server call. So cache one locally, as Microsoft does it too */
1483 if(lcid == lastLcid && dwFlags == lastFlags)
1484 {
1485 memcpy(lpChars, &lastChars, sizeof(defaultChars));
1486 LeaveCriticalSection(&csLastChars);
1487 return;
1488 }
1489
1490 memcpy(lpChars, &defaultChars, sizeof(defaultChars));
1491 GET_NUMBER_TEXT(LOCALE_SNEGATIVESIGN, cNegativeSymbol);
1492 GET_NUMBER_TEXT(LOCALE_SPOSITIVESIGN, cPositiveSymbol);
1493 GET_NUMBER_TEXT(LOCALE_SDECIMAL, cDecimalPoint);
1494 GET_NUMBER_TEXT(LOCALE_STHOUSAND, cDigitSeparator);
1495 GET_NUMBER_TEXT(LOCALE_SMONDECIMALSEP, cCurrencyDecimalPoint);
1496 GET_NUMBER_TEXT(LOCALE_SMONTHOUSANDSEP, cCurrencyDigitSeparator);
1497
1498 /* Local currency symbols are often 2 characters */
1499 lpChars->cCurrencyLocal2 = '\0';
1500 switch(GetLocaleInfoW(lcid, lctype|LOCALE_SCURRENCY, buff, sizeof(buff)/sizeof(WCHAR)))
1501 {
1502 case 3: lpChars->cCurrencyLocal2 = buff[1]; /* Fall through */
1503 case 2: lpChars->cCurrencyLocal = buff[0];
1504 break;
1505 default: WARN("buffer too small for LOCALE_SCURRENCY\n");
1506 }
1507 TRACE("lcid 0x%x, cCurrencyLocal =%d,%d '%c','%c'\n", lcid, lpChars->cCurrencyLocal,
1508 lpChars->cCurrencyLocal2, lpChars->cCurrencyLocal, lpChars->cCurrencyLocal2);
1509
1510 memcpy(&lastChars, lpChars, sizeof(defaultChars));
1511 lastLcid = lcid;
1512 lastFlags = dwFlags;
1513 LeaveCriticalSection(&csLastChars);
1514 }
1515
1516 /* Number Parsing States */
1517 #define B_PROCESSING_EXPONENT 0x1
1518 #define B_NEGATIVE_EXPONENT 0x2
1519 #define B_EXPONENT_START 0x4
1520 #define B_INEXACT_ZEROS 0x8
1521 #define B_LEADING_ZERO 0x10
1522 #define B_PROCESSING_HEX 0x20
1523 #define B_PROCESSING_OCT 0x40
1524
1525 /**********************************************************************
1526 * VarParseNumFromStr [OLEAUT32.46]
1527 *
1528 * Parse a string containing a number into a NUMPARSE structure.
1529 *
1530 * PARAMS
1531 * lpszStr [I] String to parse number from
1532 * lcid [I] Locale Id for the conversion
1533 * dwFlags [I] 0, or LOCALE_NOUSEROVERRIDE to use system default number chars
1534 * pNumprs [I/O] Destination for parsed number
1535 * rgbDig [O] Destination for digits read in
1536 *
1537 * RETURNS
1538 * Success: S_OK. pNumprs and rgbDig contain the parsed representation of
1539 * the number.
1540 * Failure: E_INVALIDARG, if any parameter is invalid.
1541 * DISP_E_TYPEMISMATCH, if the string is not a number or is formatted
1542 * incorrectly.
1543 * DISP_E_OVERFLOW, if rgbDig is too small to hold the number.
1544 *
1545 * NOTES
1546 * pNumprs must have the following fields set:
1547 * cDig: Set to the size of rgbDig.
1548 * dwInFlags: Set to the allowable syntax of the number using NUMPRS_ flags
1549 * from "oleauto.h".
1550 *
1551 * FIXME
1552 * - I am unsure if this function should parse non-arabic (e.g. Thai)
1553 * numerals, so this has not been implemented.
1554 */
1555 HRESULT WINAPI VarParseNumFromStr(OLECHAR *lpszStr, LCID lcid, ULONG dwFlags,
1556 NUMPARSE *pNumprs, BYTE *rgbDig)
1557 {
1558 VARIANT_NUMBER_CHARS chars;
1559 BYTE rgbTmp[1024];
1560 DWORD dwState = B_EXPONENT_START|B_INEXACT_ZEROS;
1561 int iMaxDigits = sizeof(rgbTmp) / sizeof(BYTE);
1562 int cchUsed = 0;
1563
1564 TRACE("(%s,%d,0x%08x,%p,%p)\n", debugstr_w(lpszStr), lcid, dwFlags, pNumprs, rgbDig);
1565
1566 if (!pNumprs || !rgbDig)
1567 return E_INVALIDARG;
1568
1569 if (pNumprs->cDig < iMaxDigits)
1570 iMaxDigits = pNumprs->cDig;
1571
1572 pNumprs->cDig = 0;
1573 pNumprs->dwOutFlags = 0;
1574 pNumprs->cchUsed = 0;
1575 pNumprs->nBaseShift = 0;
1576 pNumprs->nPwr10 = 0;
1577
1578 if (!lpszStr)
1579 return DISP_E_TYPEMISMATCH;
1580
1581 VARIANT_GetLocalisedNumberChars(&chars, lcid, dwFlags);
1582
1583 /* First consume all the leading symbols and space from the string */
1584 while (1)
1585 {
1586 if (pNumprs->dwInFlags & NUMPRS_LEADING_WHITE && isspaceW(*lpszStr))
1587 {
1588 pNumprs->dwOutFlags |= NUMPRS_LEADING_WHITE;
1589 do
1590 {
1591 cchUsed++;
1592 lpszStr++;
1593 } while (isspaceW(*lpszStr));
1594 }
1595 else if (pNumprs->dwInFlags & NUMPRS_LEADING_PLUS &&
1596 *lpszStr == chars.cPositiveSymbol &&
1597 !(pNumprs->dwOutFlags & NUMPRS_LEADING_PLUS))
1598 {
1599 pNumprs->dwOutFlags |= NUMPRS_LEADING_PLUS;
1600 cchUsed++;
1601 lpszStr++;
1602 }
1603 else if (pNumprs->dwInFlags & NUMPRS_LEADING_MINUS &&
1604 *lpszStr == chars.cNegativeSymbol &&
1605 !(pNumprs->dwOutFlags & NUMPRS_LEADING_MINUS))
1606 {
1607 pNumprs->dwOutFlags |= (NUMPRS_LEADING_MINUS|NUMPRS_NEG);
1608 cchUsed++;
1609 lpszStr++;
1610 }
1611 else if (pNumprs->dwInFlags & NUMPRS_CURRENCY &&
1612 !(pNumprs->dwOutFlags & NUMPRS_CURRENCY) &&
1613 *lpszStr == chars.cCurrencyLocal &&
1614 (!chars.cCurrencyLocal2 || lpszStr[1] == chars.cCurrencyLocal2))
1615 {
1616 pNumprs->dwOutFlags |= NUMPRS_CURRENCY;
1617 cchUsed++;
1618 lpszStr++;
1619 /* Only accept currency characters */
1620 chars.cDecimalPoint = chars.cCurrencyDecimalPoint;
1621 chars.cDigitSeparator = chars.cCurrencyDigitSeparator;
1622 }
1623 else if (pNumprs->dwInFlags & NUMPRS_PARENS && *lpszStr == '(' &&
1624 !(pNumprs->dwOutFlags & NUMPRS_PARENS))
1625 {
1626 pNumprs->dwOutFlags |= NUMPRS_PARENS;
1627 cchUsed++;
1628 lpszStr++;
1629 }
1630 else
1631 break;
1632 }
1633
1634 if (!(pNumprs->dwOutFlags & NUMPRS_CURRENCY))
1635 {
1636 /* Only accept non-currency characters */
1637 chars.cCurrencyDecimalPoint = chars.cDecimalPoint;
1638 chars.cCurrencyDigitSeparator = chars.cDigitSeparator;
1639 }
1640
1641 if ((*lpszStr == '&' && (*(lpszStr+1) == 'H' || *(lpszStr+1) == 'h')) &&
1642 pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1643 {
1644 dwState |= B_PROCESSING_HEX;
1645 pNumprs->dwOutFlags |= NUMPRS_HEX_OCT;
1646 cchUsed=cchUsed+2;
1647 lpszStr=lpszStr+2;
1648 }
1649 else if ((*lpszStr == '&' && (*(lpszStr+1) == 'O' || *(lpszStr+1) == 'o')) &&
1650 pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1651 {
1652 dwState |= B_PROCESSING_OCT;
1653 pNumprs->dwOutFlags |= NUMPRS_HEX_OCT;
1654 cchUsed=cchUsed+2;
1655 lpszStr=lpszStr+2;
1656 }
1657
1658 /* Strip Leading zeros */
1659 while (*lpszStr == '')
1660 {
1661 dwState |= B_LEADING_ZERO;
1662 cchUsed++;
1663 lpszStr++;
1664 }
1665
1666 while (*lpszStr)
1667 {
1668 if (isdigitW(*lpszStr))
1669 {
1670 if (dwState & B_PROCESSING_EXPONENT)
1671 {
1672 int exponentSize = 0;
1673 if (dwState & B_EXPONENT_START)
1674 {
1675 if (!isdigitW(*lpszStr))
1676 break; /* No exponent digits - invalid */
1677 while (*lpszStr == '')
1678 {
1679 /* Skip leading zero's in the exponent */
1680 cchUsed++;
1681 lpszStr++;
1682 }
1683 }
1684
1685 while (isdigitW(*lpszStr))
1686 {
1687 exponentSize *= 10;
1688 exponentSize += *lpszStr - '';
1689 cchUsed++;
1690 lpszStr++;
1691 }
1692 if (dwState & B_NEGATIVE_EXPONENT)
1693 exponentSize = -exponentSize;
1694 /* Add the exponent into the powers of 10 */
1695 pNumprs->nPwr10 += exponentSize;
1696 dwState &= ~(B_PROCESSING_EXPONENT|B_EXPONENT_START);
1697 lpszStr--; /* back up to allow processing of next char */
1698 }
1699 else
1700 {
1701 if ((pNumprs->cDig >= iMaxDigits) && !(dwState & B_PROCESSING_HEX)
1702 && !(dwState & B_PROCESSING_OCT))
1703 {
1704 pNumprs->dwOutFlags |= NUMPRS_INEXACT;
1705
1706 if (*lpszStr != '')
1707 dwState &= ~B_INEXACT_ZEROS; /* Inexact number with non-trailing zeros */
1708
1709 /* This digit can't be represented, but count it in nPwr10 */
1710 if (pNumprs->dwOutFlags & NUMPRS_DECIMAL)
1711 pNumprs->nPwr10--;
1712 else
1713 pNumprs->nPwr10++;
1714 }
1715 else
1716 {
1717 if ((dwState & B_PROCESSING_OCT) && ((*lpszStr == '8') || (*lpszStr == '9'))) {
1718 return DISP_E_TYPEMISMATCH;
1719 }
1720
1721 if (pNumprs->dwOutFlags & NUMPRS_DECIMAL)
1722 pNumprs->nPwr10--; /* Count decimal points in nPwr10 */
1723
1724 rgbTmp[pNumprs->cDig] = *lpszStr - '';
1725 }
1726 pNumprs->cDig++;
1727 cchUsed++;
1728 }
1729 }
1730 else if (*lpszStr == chars.cDigitSeparator && pNumprs->dwInFlags & NUMPRS_THOUSANDS)
1731 {
1732 pNumprs->dwOutFlags |= NUMPRS_THOUSANDS;
1733 cchUsed++;
1734 }
1735 else if (*lpszStr == chars.cDecimalPoint &&
1736 pNumprs->dwInFlags & NUMPRS_DECIMAL &&
1737 !(pNumprs->dwOutFlags & (NUMPRS_DECIMAL|NUMPRS_EXPONENT)))
1738 {
1739 pNumprs->dwOutFlags |= NUMPRS_DECIMAL;
1740 cchUsed++;
1741
1742 /* If we have no digits so far, skip leading zeros */
1743 if (!pNumprs->cDig)
1744 {
1745 while (lpszStr[1] == '')
1746 {
1747 dwState |= B_LEADING_ZERO;
1748 cchUsed++;
1749 lpszStr++;
1750 pNumprs->nPwr10--;
1751 }
1752 }
1753 }
1754 else if (((*lpszStr >= 'a' && *lpszStr <= 'f') ||
1755 (*lpszStr >= 'A' && *lpszStr <= 'F')) &&
1756 dwState & B_PROCESSING_HEX)
1757 {
1758 if (pNumprs->cDig >= iMaxDigits)
1759 {
1760 return DISP_E_OVERFLOW;
1761 }
1762 else
1763 {
1764 if (*lpszStr >= 'a')
1765 rgbTmp[pNumprs->cDig] = *lpszStr - 'a' + 10;
1766 else
1767 rgbTmp[pNumprs->cDig] = *lpszStr - 'A' + 10;
1768 }
1769 pNumprs->cDig++;
1770 cchUsed++;
1771 }
1772 else if ((*lpszStr == 'e' || *lpszStr == 'E') &&
1773 pNumprs->dwInFlags & NUMPRS_EXPONENT &&
1774 !(pNumprs->dwOutFlags & NUMPRS_EXPONENT))
1775 {
1776 dwState |= B_PROCESSING_EXPONENT;
1777 pNumprs->dwOutFlags |= NUMPRS_EXPONENT;
1778 cchUsed++;
1779 }
1780 else if (dwState & B_PROCESSING_EXPONENT && *lpszStr == chars.cPositiveSymbol)
1781 {
1782 cchUsed++; /* Ignore positive exponent */
1783 }
1784 else if (dwState & B_PROCESSING_EXPONENT && *lpszStr == chars.cNegativeSymbol)
1785 {
1786 dwState |= B_NEGATIVE_EXPONENT;
1787 cchUsed++;
1788 }
1789 else
1790 break; /* Stop at an unrecognised character */
1791
1792 lpszStr++;
1793 }
1794
1795 if (!pNumprs->cDig && dwState & B_LEADING_ZERO)
1796 {
1797 /* Ensure a 0 on its own gets stored */
1798 pNumprs->cDig = 1;
1799 rgbTmp[0] = 0;
1800 }
1801
1802 if (pNumprs->dwOutFlags & NUMPRS_EXPONENT && dwState & B_PROCESSING_EXPONENT)
1803 {
1804 pNumprs->cchUsed = cchUsed;
1805 WARN("didn't completely parse exponent\n");
1806 return DISP_E_TYPEMISMATCH; /* Failed to completely parse the exponent */
1807 }
1808
1809 if (pNumprs->dwOutFlags & NUMPRS_INEXACT)
1810 {
1811 if (dwState & B_INEXACT_ZEROS)
1812 pNumprs->dwOutFlags &= ~NUMPRS_INEXACT; /* All zeros doesn't set NUMPRS_INEXACT */
1813 } else if(pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1814 {
1815 /* copy all of the digits into the output digit buffer */
1816 /* this is exactly what windows does although it also returns */
1817 /* cDig of X and writes X+Y where Y>=0 number of digits to rgbDig */
1818 memcpy(rgbDig, rgbTmp, pNumprs->cDig * sizeof(BYTE));
1819
1820 if (dwState & B_PROCESSING_HEX) {
1821 /* hex numbers have always the same format */
1822 pNumprs->nPwr10=0;
1823 pNumprs->nBaseShift=4;
1824 } else {
1825 if (dwState & B_PROCESSING_OCT) {
1826 /* oct numbers have always the same format */
1827 pNumprs->nPwr10=0;
1828 pNumprs->nBaseShift=3;
1829 } else {
1830 while (pNumprs->cDig > 1 && !rgbTmp[pNumprs->cDig - 1])
1831 {
1832 pNumprs->nPwr10++;
1833 pNumprs->cDig--;
1834 }
1835 }
1836 }
1837 } else
1838 {
1839 /* Remove trailing zeros from the last (whole number or decimal) part */
1840 while (pNumprs->cDig > 1 && !rgbTmp[pNumprs->cDig - 1])
1841 {
1842 pNumprs->nPwr10++;
1843 pNumprs->cDig--;
1844 }
1845 }
1846
1847 if (pNumprs->cDig <= iMaxDigits)
1848 pNumprs->dwOutFlags &= ~NUMPRS_INEXACT; /* Ignore stripped zeros for NUMPRS_INEXACT */
1849 else
1850 pNumprs->cDig = iMaxDigits; /* Only return iMaxDigits worth of digits */
1851
1852 /* Copy the digits we processed into rgbDig */
1853 memcpy(rgbDig, rgbTmp, pNumprs->cDig * sizeof(BYTE));
1854
1855 /* Consume any trailing symbols and space */
1856 while (1)
1857 {
1858 if ((pNumprs->dwInFlags & NUMPRS_TRAILING_WHITE) && isspaceW(*lpszStr))
1859 {
1860 pNumprs->dwOutFlags |= NUMPRS_TRAILING_WHITE;
1861 do
1862 {
1863 cchUsed++;
1864 lpszStr++;
1865 } while (isspaceW(*lpszStr));
1866 }
1867 else if (pNumprs->dwInFlags & NUMPRS_TRAILING_PLUS &&
1868 !(pNumprs->dwOutFlags & NUMPRS_LEADING_PLUS) &&
1869 *lpszStr == chars.cPositiveSymbol)
1870 {
1871 pNumprs->dwOutFlags |= NUMPRS_TRAILING_PLUS;
1872 cchUsed++;
1873 lpszStr++;
1874 }
1875 else if (pNumprs->dwInFlags & NUMPRS_TRAILING_MINUS &&
1876 !(pNumprs->dwOutFlags & NUMPRS_LEADING_MINUS) &&
1877 *lpszStr == chars.cNegativeSymbol)
1878 {
1879 pNumprs->dwOutFlags |= (NUMPRS_TRAILING_MINUS|NUMPRS_NEG);
1880 cchUsed++;
1881 lpszStr++;
1882 }
1883 else if (pNumprs->dwInFlags & NUMPRS_PARENS && *lpszStr == ')' &&
1884 pNumprs->dwOutFlags & NUMPRS_PARENS)
1885 {
1886 cchUsed++;
1887 lpszStr++;
1888 pNumprs->dwOutFlags |= NUMPRS_NEG;
1889 }
1890 else
1891 break;
1892 }
1893
1894 if (pNumprs->dwOutFlags & NUMPRS_PARENS && !(pNumprs->dwOutFlags & NUMPRS_NEG))
1895 {
1896 pNumprs->cchUsed = cchUsed;
1897 return DISP_E_TYPEMISMATCH; /* Opening parenthesis not matched */
1898 }
1899
1900 if (pNumprs->dwInFlags & NUMPRS_USE_ALL && *lpszStr != '\0')
1901 return DISP_E_TYPEMISMATCH; /* Not all chars were consumed */
1902
1903 if (!pNumprs->cDig)
1904 return DISP_E_TYPEMISMATCH; /* No Number found */
1905
1906 pNumprs->cchUsed = cchUsed;
1907 return S_OK;
1908 }
1909
1910 /* VTBIT flags indicating an integer value */
1911 #define INTEGER_VTBITS (VTBIT_I1|VTBIT_UI1|VTBIT_I2|VTBIT_UI2|VTBIT_I4|VTBIT_UI4|VTBIT_I8|VTBIT_UI8)
1912 /* VTBIT flags indicating a real number value */
1913 #define REAL_VTBITS (VTBIT_R4|VTBIT_R8|VTBIT_CY)
1914
1915 /* Helper macros to check whether bit pattern fits in VARIANT (x is a ULONG64 ) */
1916 #define FITS_AS_I1(x) ((x) >> 8 == 0)
1917 #define FITS_AS_I2(x) ((x) >> 16 == 0)
1918 #define FITS_AS_I4(x) ((x) >> 32 == 0)
1919
1920 /**********************************************************************
1921 * VarNumFromParseNum [OLEAUT32.47]
1922 *
1923 * Convert a NUMPARSE structure into a numeric Variant type.
1924 *
1925 * PARAMS
1926 * pNumprs [I] Source for parsed number. cDig must be set to the size of rgbDig
1927 * rgbDig [I] Source for the numbers digits
1928 * dwVtBits [I] VTBIT_ flags from "oleauto.h" indicating the acceptable dest types
1929 * pVarDst [O] Destination for the converted Variant value.
1930 *
1931 * RETURNS
1932 * Success: S_OK. pVarDst contains the converted value.
1933 * Failure: E_INVALIDARG, if any parameter is invalid.
1934 * DISP_E_OVERFLOW, if the number is too big for the types set in dwVtBits.
1935 *
1936 * NOTES
1937 * - The smallest favoured type present in dwVtBits that can represent the
1938 * number in pNumprs without losing precision is used.
1939 * - Signed types are preferred over unsigned types of the same size.
1940 * - Preferred types in order are: integer, float, double, currency then decimal.
1941 * - Rounding (dropping of decimal points) occurs without error. See VarI8FromR8()
1942 * for details of the rounding method.
1943 * - pVarDst is not cleared before the result is stored in it.
1944 * - WinXP and Win2003 support VTBIT_I8, VTBIT_UI8 but that's buggy (by
1945 * design?): If some other VTBIT's for integers are specified together
1946 * with VTBIT_I8 and the number will fit only in a VT_I8 Windows will "cast"
1947 * the number to the smallest requested integer truncating this way the
1948 * number. Wine doesn't implement this "feature" (yet?).
1949 */
1950 HRESULT WINAPI VarNumFromParseNum(NUMPARSE *pNumprs, BYTE *rgbDig,
1951 ULONG dwVtBits, VARIANT *pVarDst)
1952 {
1953 /* Scale factors and limits for double arithmetic */
1954 static const double dblMultipliers[11] = {
1955 1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0,
1956 1000000.0, 10000000.0, 100000000.0, 1000000000.0, 10000000000.0
1957 };
1958 static const double dblMinimums[11] = {
1959 R8_MIN, R8_MIN*10.0, R8_MIN*100.0, R8_MIN*1000.0, R8_MIN*10000.0,
1960 R8_MIN*100000.0, R8_MIN*1000000.0, R8_MIN*10000000.0,
1961 R8_MIN*100000000.0, R8_MIN*1000000000.0, R8_MIN*10000000000.0
1962 };
1963 static const double dblMaximums[11] = {
1964 R8_MAX, R8_MAX/10.0, R8_MAX/100.0, R8_MAX/1000.0, R8_MAX/10000.0,
1965 R8_MAX/100000.0, R8_MAX/1000000.0, R8_MAX/10000000.0,
1966 R8_MAX/100000000.0, R8_MAX/1000000000.0, R8_MAX/10000000000.0
1967 };
1968
1969 int wholeNumberDigits, fractionalDigits, divisor10 = 0, multiplier10 = 0;
1970
1971 TRACE("(%p,%p,0x%x,%p)\n", pNumprs, rgbDig, dwVtBits, pVarDst);
1972
1973 if (pNumprs->nBaseShift)
1974 {
1975 /* nBaseShift indicates a hex or octal number */
1976 ULONG64 ul64 = 0;
1977 LONG64 l64;
1978 int i;
1979
1980 /* Convert the hex or octal number string into a UI64 */
1981 for (i = 0; i < pNumprs->cDig; i++)
1982 {
1983 if (ul64 > ((UI8_MAX>>pNumprs->nBaseShift) - rgbDig[i]))
1984 {
1985 TRACE("Overflow multiplying digits\n");
1986 return DISP_E_OVERFLOW;
1987 }
1988 ul64 = (ul64<<pNumprs->nBaseShift) + rgbDig[i];
1989 }
1990
1991 /* also make a negative representation */
1992 l64=-ul64;
1993
1994 /* Try signed and unsigned types in size order */
1995 if (dwVtBits & VTBIT_I1 && FITS_AS_I1(ul64))
1996 {
1997 V_VT(pVarDst) = VT_I1;
1998 V_I1(pVarDst) = ul64;
1999 return S_OK;
2000 }
2001 else if (dwVtBits & VTBIT_UI1 && FITS_AS_I1(ul64))
2002 {
2003 V_VT(pVarDst) = VT_UI1;
2004 V_UI1(pVarDst) = ul64;
2005 return S_OK;
2006 }
2007 else if (dwVtBits & VTBIT_I2 && FITS_AS_I2(ul64))
2008 {
2009 V_VT(pVarDst) = VT_I2;
2010 V_I2(pVarDst) = ul64;
2011 return S_OK;
2012 }
2013 else if (dwVtBits & VTBIT_UI2 && FITS_AS_I2(ul64))
2014 {
2015 V_VT(pVarDst) = VT_UI2;
2016 V_UI2(pVarDst) = ul64;
2017 return S_OK;
2018 }
2019 else if (dwVtBits & VTBIT_I4 && FITS_AS_I4(ul64))
2020 {
2021 V_VT(pVarDst) = VT_I4;
2022 V_I4(pVarDst) = ul64;
2023 return S_OK;
2024 }
2025 else if (dwVtBits & VTBIT_UI4 && FITS_AS_I4(ul64))
2026 {
2027 V_VT(pVarDst) = VT_UI4;
2028 V_UI4(pVarDst) = ul64;
2029 return S_OK;
2030 }
2031 else if (dwVtBits & VTBIT_I8 && ((ul64 <= I8_MAX)||(l64>=I8_MIN)))
2032 {
2033 V_VT(pVarDst) = VT_I8;
2034 V_I8(pVarDst) = ul64;
2035 return S_OK;
2036 }
2037 else if (dwVtBits & VTBIT_UI8)
2038 {
2039 V_VT(pVarDst) = VT_UI8;
2040 V_UI8(pVarDst) = ul64;
2041 return S_OK;
2042 }
2043 else if ((dwVtBits & VTBIT_DECIMAL) == VTBIT_DECIMAL)
2044 {
2045 V_VT(pVarDst) = VT_DECIMAL;
2046 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_POS,0);
2047 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2048 DEC_LO64(&V_DECIMAL(pVarDst)) = ul64;
2049 return S_OK;
2050 }
2051 else if (dwVtBits & VTBIT_R4 && ((ul64 <= I4_MAX)||(l64 >= I4_MIN)))
2052 {
2053 V_VT(pVarDst) = VT_R4;
2054 if (ul64 <= I4_MAX)
2055 V_R4(pVarDst) = ul64;
2056 else
2057 V_R4(pVarDst) = l64;
2058 return S_OK;
2059 }
2060 else if (dwVtBits & VTBIT_R8 && ((ul64 <= I4_MAX)||(l64 >= I4_MIN)))
2061 {
2062 V_VT(pVarDst) = VT_R8;
2063 if (ul64 <= I4_MAX)
2064 V_R8(pVarDst) = ul64;
2065 else
2066 V_R8(pVarDst) = l64;
2067 return S_OK;
2068 }
2069
2070 TRACE("Overflow: possible return types: 0x%x, value: %s\n", dwVtBits, wine_dbgstr_longlong(ul64));
2071 return DISP_E_OVERFLOW;
2072 }
2073
2074 /* Count the number of relevant fractional and whole digits stored,
2075 * And compute the divisor/multiplier to scale the number by.
2076 */
2077 if (pNumprs->nPwr10 < 0)
2078 {
2079 if (-pNumprs->nPwr10 >= pNumprs->cDig)
2080 {
2081 /* A real number < +/- 1.0 e.g. 0.1024 or 0.01024 */
2082 wholeNumberDigits = 0;
2083 fractionalDigits = pNumprs->cDig;
2084 divisor10 = -pNumprs->nPwr10;
2085 }
2086 else
2087 {
2088 /* An exactly represented real number e.g. 1.024 */
2089 wholeNumberDigits = pNumprs->cDig + pNumprs->nPwr10;
2090 fractionalDigits = pNumprs->cDig - wholeNumberDigits;
2091 divisor10 = pNumprs->cDig - wholeNumberDigits;
2092 }
2093 }
2094 else if (pNumprs->nPwr10 == 0)
2095 {
2096 /* An exactly represented whole number e.g. 1024 */
2097 wholeNumberDigits = pNumprs->cDig;
2098 fractionalDigits = 0;
2099 }
2100 else /* pNumprs->nPwr10 > 0 */
2101 {
2102 /* A whole number followed by nPwr10 0's e.g. 102400 */
2103 wholeNumberDigits = pNumprs->cDig;
2104 fractionalDigits = 0;
2105 multiplier10 = pNumprs->nPwr10;
2106 }
2107
2108 TRACE("cDig %d; nPwr10 %d, whole %d, frac %d mult %d; div %d\n",
2109 pNumprs->cDig, pNumprs->nPwr10, wholeNumberDigits, fractionalDigits,
2110 multiplier10, divisor10);
2111
2112 if (dwVtBits & (INTEGER_VTBITS|VTBIT_DECIMAL) &&
2113 (!fractionalDigits || !(dwVtBits & (REAL_VTBITS|VTBIT_CY|VTBIT_DECIMAL))))
2114 {
2115 /* We have one or more integer output choices, and either:
2116 * 1) An integer input value, or
2117 * 2) A real number input value but no floating output choices.
2118 * Alternately, we have a DECIMAL output available and an integer input.
2119 *
2120 * So, place the integer value into pVarDst, using the smallest type
2121 * possible and preferring signed over unsigned types.
2122 */
2123 BOOL bOverflow = FALSE, bNegative;
2124 ULONG64 ul64 = 0;
2125 int i;
2126
2127 /* Convert the integer part of the number into a UI8 */
2128 for (i = 0; i < wholeNumberDigits; i++)
2129 {
2130 if (ul64 > (UI8_MAX / 10 - rgbDig[i]))
2131 {
2132 TRACE("Overflow multiplying digits\n");
2133 bOverflow = TRUE;
2134 break;
2135 }
2136 ul64 = ul64 * 10 + rgbDig[i];
2137 }
2138
2139 /* Account for the scale of the number */
2140 if (!bOverflow && multiplier10)
2141 {
2142 for (i = 0; i < multiplier10; i++)
2143 {
2144 if (ul64 > (UI8_MAX / 10))
2145 {
2146 TRACE("Overflow scaling number\n");
2147 bOverflow = TRUE;
2148 break;
2149 }
2150 ul64 = ul64 * 10;
2151 }
2152 }
2153
2154 /* If we have any fractional digits, round the value.
2155 * Note we don't have to do this if divisor10 is < 1,
2156 * because this means the fractional part must be < 0.5
2157 */
2158 if (!bOverflow && fractionalDigits && divisor10 > 0)
2159 {
2160 const BYTE* fracDig = rgbDig + wholeNumberDigits;
2161 BOOL bAdjust = FALSE;
2162
2163 TRACE("first decimal value is %d\n", *fracDig);
2164
2165 if (*fracDig > 5)
2166 bAdjust = TRUE; /* > 0.5 */
2167 else if (*fracDig == 5)
2168 {
2169 for (i = 1; i < fractionalDigits; i++)
2170 {
2171 if (fracDig[i])
2172 {
2173 bAdjust = TRUE; /* > 0.5 */
2174 break;
2175 }
2176 }
2177 /* If exactly 0.5, round only odd values */
2178 if (i == fractionalDigits && (ul64 & 1))
2179 bAdjust = TRUE;
2180 }
2181
2182 if (bAdjust)
2183 {
2184 if (ul64 == UI8_MAX)
2185 {
2186 TRACE("Overflow after rounding\n");
2187 bOverflow = TRUE;
2188 }
2189 ul64++;
2190 }
2191 }
2192
2193 /* Zero is not a negative number */
2194 bNegative = pNumprs->dwOutFlags & NUMPRS_NEG && ul64 ? TRUE : FALSE;
2195
2196 TRACE("Integer value is 0x%s, bNeg %d\n", wine_dbgstr_longlong(ul64), bNegative);
2197
2198 /* For negative integers, try the signed types in size order */
2199 if (!bOverflow && bNegative)
2200 {
2201 if (dwVtBits & (VTBIT_I1|VTBIT_I2|VTBIT_I4|VTBIT_I8))
2202 {
2203 if (dwVtBits & VTBIT_I1 && ul64 <= -I1_MIN)
2204 {
2205 V_VT(pVarDst) = VT_I1;
2206 V_I1(pVarDst) = -ul64;
2207 return S_OK;
2208 }
2209 else if (dwVtBits & VTBIT_I2 && ul64 <= -I2_MIN)
2210 {
2211 V_VT(pVarDst) = VT_I2;
2212 V_I2(pVarDst) = -ul64;
2213 return S_OK;
2214 }
2215 else if (dwVtBits & VTBIT_I4 && ul64 <= -((LONGLONG)I4_MIN))
2216 {
2217 V_VT(pVarDst) = VT_I4;
2218 V_I4(pVarDst) = -ul64;
2219 return S_OK;
2220 }
2221 else if (dwVtBits & VTBIT_I8 && ul64 <= (ULONGLONG)I8_MAX + 1)
2222 {
2223 V_VT(pVarDst) = VT_I8;
2224 V_I8(pVarDst) = -ul64;
2225 return S_OK;
2226 }
2227 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2228 {
2229 /* Decimal is only output choice left - fast path */
2230 V_VT(pVarDst) = VT_DECIMAL;
2231 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_NEG,0);
2232 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2233 DEC_LO64(&V_DECIMAL(pVarDst)) = -ul64;
2234 return S_OK;
2235 }
2236 }
2237 }
2238 else if (!bOverflow)
2239 {
2240 /* For positive integers, try signed then unsigned types in size order */
2241 if (dwVtBits & VTBIT_I1 && ul64 <= I1_MAX)
2242 {
2243 V_VT(pVarDst) = VT_I1;
2244 V_I1(pVarDst) = ul64;
2245 return S_OK;
2246 }
2247 else if (dwVtBits & VTBIT_UI1 && ul64 <= UI1_MAX)
2248 {
2249 V_VT(pVarDst) = VT_UI1;
2250 V_UI1(pVarDst) = ul64;
2251 return S_OK;
2252 }
2253 else if (dwVtBits & VTBIT_I2 && ul64 <= I2_MAX)
2254 {
2255 V_VT(pVarDst) = VT_I2;
2256 V_I2(pVarDst) = ul64;
2257 return S_OK;
2258 }
2259 else if (dwVtBits & VTBIT_UI2 && ul64 <= UI2_MAX)
2260 {
2261 V_VT(pVarDst) = VT_UI2;
2262 V_UI2(pVarDst) = ul64;
2263 return S_OK;
2264 }
2265 else if (dwVtBits & VTBIT_I4 && ul64 <= I4_MAX)
2266 {
2267 V_VT(pVarDst) = VT_I4;
2268 V_I4(pVarDst) = ul64;
2269 return S_OK;
2270 }
2271 else if (dwVtBits & VTBIT_UI4 && ul64 <= UI4_MAX)
2272 {
2273 V_VT(pVarDst) = VT_UI4;
2274 V_UI4(pVarDst) = ul64;
2275 return S_OK;
2276 }
2277 else if (dwVtBits & VTBIT_I8 && ul64 <= I8_MAX)
2278 {
2279 V_VT(pVarDst) = VT_I8;
2280 V_I8(pVarDst) = ul64;
2281 return S_OK;
2282 }
2283 else if (dwVtBits & VTBIT_UI8)
2284 {
2285 V_VT(pVarDst) = VT_UI8;
2286 V_UI8(pVarDst) = ul64;
2287 return S_OK;
2288 }
2289 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2290 {
2291 /* Decimal is only output choice left - fast path */
2292 V_VT(pVarDst) = VT_DECIMAL;
2293 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_POS,0);
2294 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2295 DEC_LO64(&V_DECIMAL(pVarDst)) = ul64;
2296 return S_OK;
2297 }
2298 }
2299 }
2300
2301 if (dwVtBits & REAL_VTBITS)
2302 {
2303 /* Try to put the number into a float or real */
2304 BOOL bOverflow = FALSE, bNegative = pNumprs->dwOutFlags & NUMPRS_NEG;
2305 double whole = 0.0;
2306 int i;
2307
2308 /* Convert the number into a double */
2309 for (i = 0; i < pNumprs->cDig; i++)
2310 whole = whole * 10.0 + rgbDig[i];
2311
2312 TRACE("Whole double value is %16.16g\n", whole);
2313
2314 /* Account for the scale */
2315 while (multiplier10 > 10)
2316 {
2317 if (whole > dblMaximums[10])
2318 {
2319 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY);
2320 bOverflow = TRUE;
2321 break;
2322 }
2323 whole = whole * dblMultipliers[10];
2324 multiplier10 -= 10;
2325 }
2326 if (multiplier10 && !bOverflow)
2327 {
2328 if (whole > dblMaximums[multiplier10])
2329 {
2330 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY);
2331 bOverflow = TRUE;
2332 }
2333 else
2334 whole = whole * dblMultipliers[multiplier10];
2335 }
2336
2337 if (!bOverflow)
2338 TRACE("Scaled double value is %16.16g\n", whole);
2339
2340 while (divisor10 > 10 && !bOverflow)
2341 {
2342 if (whole < dblMinimums[10] && whole != 0)
2343 {
2344 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY); /* Underflow */
2345 bOverflow = TRUE;
2346 break;
2347 }
2348 whole = whole / dblMultipliers[10];
2349 divisor10 -= 10;
2350 }
2351 if (divisor10 && !bOverflow)
2352 {
2353 if (whole < dblMinimums[divisor10] && whole != 0)
2354 {
2355 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY); /* Underflow */
2356 bOverflow = TRUE;
2357 }
2358 else
2359 whole = whole / dblMultipliers[divisor10];
2360 }
2361 if (!bOverflow)
2362 TRACE("Final double value is %16.16g\n", whole);
2363
2364 if (dwVtBits & VTBIT_R4 &&
2365 ((whole <= R4_MAX && whole >= R4_MIN) || whole == 0.0))
2366 {
2367 TRACE("Set R4 to final value\n");
2368 V_VT(pVarDst) = VT_R4; /* Fits into a float */
2369 V_R4(pVarDst) = pNumprs->dwOutFlags & NUMPRS_NEG ? -whole : whole;
2370 return S_OK;
2371 }
2372
2373 if (dwVtBits & VTBIT_R8)
2374 {
2375 TRACE("Set R8 to final value\n");
2376 V_VT(pVarDst) = VT_R8; /* Fits into a double */
2377 V_R8(pVarDst) = pNumprs->dwOutFlags & NUMPRS_NEG ? -whole : whole;
2378 return S_OK;
2379 }
2380
2381 if (dwVtBits & VTBIT_CY)
2382 {
2383 if (SUCCEEDED(VarCyFromR8(bNegative ? -whole : whole, &V_CY(pVarDst))))
2384 {
2385 V_VT(pVarDst) = VT_CY; /* Fits into a currency */
2386 TRACE("Set CY to final value\n");
2387 return S_OK;
2388 }
2389 TRACE("Value Overflows CY\n");
2390 }
2391 }
2392
2393 if (dwVtBits & VTBIT_DECIMAL)
2394 {
2395 int i;
2396 ULONG carry;
2397 ULONG64 tmp;
2398 DECIMAL* pDec = &V_DECIMAL(pVarDst);
2399
2400 DECIMAL_SETZERO(*pDec);
2401 DEC_LO32(pDec) = 0;
2402
2403 if (pNumprs->dwOutFlags & NUMPRS_NEG)
2404 DEC_SIGN(pDec) = DECIMAL_NEG;
2405 else
2406 DEC_SIGN(pDec) = DECIMAL_POS;
2407
2408 /* Factor the significant digits */
2409 for (i = 0; i < pNumprs->cDig; i++)
2410 {
2411 tmp = (ULONG64)DEC_LO32(pDec) * 10 + rgbDig[i];
2412 carry = (ULONG)(tmp >> 32);
2413 DEC_LO32(pDec) = (ULONG)(tmp & UI4_MAX);
2414 tmp = (ULONG64)DEC_MID32(pDec) * 10 + carry;
2415 carry = (ULONG)(tmp >> 32);
2416 DEC_MID32(pDec) = (ULONG)(tmp & UI4_MAX);
2417 tmp = (ULONG64)DEC_HI32(pDec) * 10 + carry;
2418 DEC_HI32(pDec) = (ULONG)(tmp & UI4_MAX);
2419
2420 if (tmp >> 32 & UI4_MAX)
2421 {
2422 VarNumFromParseNum_DecOverflow:
2423 TRACE("Overflow\n");
2424 DEC_LO32(pDec) = DEC_MID32(pDec) = DEC_HI32(pDec) = UI4_MAX;
2425 return DISP_E_OVERFLOW;
2426 }
2427 }
2428
2429 /* Account for the scale of the number */
2430 while (multiplier10 > 0)
2431 {
2432 tmp = (ULONG64)DEC_LO32(pDec) * 10;
2433 carry = (ULONG)(tmp >> 32);
2434 DEC_LO32(pDec) = (ULONG)(tmp & UI4_MAX);
2435 tmp = (ULONG64)DEC_MID32(pDec) * 10 + carry;
2436 carry = (ULONG)(tmp >> 32);
2437 DEC_MID32(pDec) = (ULONG)(tmp & UI4_MAX);
2438 tmp = (ULONG64)DEC_HI32(pDec) * 10 + carry;
2439 DEC_HI32(pDec) = (ULONG)(tmp & UI4_MAX);
2440
2441 if (tmp >> 32 & UI4_MAX)
2442 goto VarNumFromParseNum_DecOverflow;
2443 multiplier10--;
2444 }
2445 DEC_SCALE(pDec) = divisor10;
2446
2447 V_VT(pVarDst) = VT_DECIMAL;
2448 return S_OK;
2449 }
2450 return DISP_E_OVERFLOW; /* No more output choices */
2451 }
2452
2453 /**********************************************************************
2454 * VarCat [OLEAUT32.318]
2455 *
2456 * Concatenates one variant onto another.
2457 *
2458 * PARAMS
2459 * left [I] First variant
2460 * right [I] Second variant
2461 * result [O] Result variant
2462 *
2463 * RETURNS
2464 * Success: S_OK.
2465 * Failure: An HRESULT error code indicating the error.
2466 */
2467 HRESULT WINAPI VarCat(LPVARIANT left, LPVARIANT right, LPVARIANT out)
2468 {
2469 VARTYPE leftvt,rightvt,resultvt;
2470 HRESULT hres;
2471 static WCHAR str_true[32];
2472 static WCHAR str_false[32];
2473 static const WCHAR sz_empty[] = {'\0'};
2474 leftvt = V_VT(left);
2475 rightvt = V_VT(right);
2476
2477 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2478 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), out);
2479
2480 if (!str_true[0]) {
2481 VARIANT_GetLocalisedText(LOCALE_USER_DEFAULT, IDS_FALSE, str_false);
2482 VARIANT_GetLocalisedText(LOCALE_USER_DEFAULT, IDS_TRUE, str_true);
2483 }
2484
2485 /* when both left and right are NULL the result is NULL */
2486 if (leftvt == VT_NULL && rightvt == VT_NULL)
2487 {
2488 V_VT(out) = VT_NULL;
2489 return S_OK;
2490 }
2491
2492 hres = S_OK;
2493 resultvt = VT_EMPTY;
2494
2495 /* There are many special case for errors and return types */
2496 if (leftvt == VT_VARIANT && (rightvt == VT_ERROR ||
2497 rightvt == VT_DATE || rightvt == VT_DECIMAL))
2498 hres = DISP_E_TYPEMISMATCH;
2499 else if ((leftvt == VT_I2 || leftvt == VT_I4 ||
2500 leftvt == VT_R4 || leftvt == VT_R8 ||
2501 leftvt == VT_CY || leftvt == VT_BOOL ||
2502 leftvt == VT_BSTR || leftvt == VT_I1 ||
2503 leftvt == VT_UI1 || leftvt == VT_UI2 ||
2504 leftvt == VT_UI4 || leftvt == VT_I8 ||
2505 leftvt == VT_UI8 || leftvt == VT_INT ||
2506 leftvt == VT_UINT || leftvt == VT_EMPTY ||
2507 leftvt == VT_NULL || leftvt == VT_DATE ||
2508 leftvt == VT_DECIMAL || leftvt == VT_DISPATCH)
2509 &&
2510 (rightvt == VT_I2 || rightvt == VT_I4 ||
2511 rightvt == VT_R4 || rightvt == VT_R8 ||
2512 rightvt == VT_CY || rightvt == VT_BOOL ||
2513 rightvt == VT_BSTR || rightvt == VT_I1 ||
2514 rightvt == VT_UI1 || rightvt == VT_UI2 ||
2515 rightvt == VT_UI4 || rightvt == VT_I8 ||
2516 rightvt == VT_UI8 || rightvt == VT_INT ||
2517 rightvt == VT_UINT || rightvt == VT_EMPTY ||
2518 rightvt == VT_NULL || rightvt == VT_DATE ||
2519 rightvt == VT_DECIMAL || rightvt == VT_DISPATCH))
2520 resultvt = VT_BSTR;
2521 else if (rightvt == VT_ERROR && leftvt < VT_VOID)
2522 hres = DISP_E_TYPEMISMATCH;
2523 else if (leftvt == VT_ERROR && (rightvt == VT_DATE ||
2524 rightvt == VT_ERROR || rightvt == VT_DECIMAL))
2525 hres = DISP_E_TYPEMISMATCH;
2526 else if (rightvt == VT_DATE || rightvt == VT_ERROR ||
2527 rightvt == VT_DECIMAL)
2528 hres = DISP_E_BADVARTYPE;
2529 else if (leftvt == VT_ERROR || rightvt == VT_ERROR)
2530 hres = DISP_E_TYPEMISMATCH;
2531 else if (leftvt == VT_VARIANT)
2532 hres = DISP_E_TYPEMISMATCH;
2533 else if (rightvt == VT_VARIANT && (leftvt == VT_EMPTY ||
2534 leftvt == VT_NULL || leftvt == VT_I2 ||
2535 leftvt == VT_I4 || leftvt == VT_R4 ||
2536 leftvt == VT_R8 || leftvt == VT_CY ||
2537 leftvt == VT_DATE || leftvt == VT_BSTR ||
2538 leftvt == VT_BOOL || leftvt == VT_DECIMAL ||
2539 leftvt == VT_I1 || leftvt == VT_UI1 ||
2540 leftvt == VT_UI2 || leftvt == VT_UI4 ||
2541 leftvt == VT_I8 || leftvt == VT_UI8 ||
2542 leftvt == VT_INT || leftvt == VT_UINT))
2543 hres = DISP_E_TYPEMISMATCH;
2544 else
2545 hres = DISP_E_BADVARTYPE;
2546
2547 /* if result type is not S_OK, then no need to go further */
2548 if (hres != S_OK)
2549 {
2550 V_VT(out) = resultvt;
2551 return hres;
2552 }
2553 /* Else proceed with formatting inputs to strings */
2554 else
2555 {
2556 VARIANT bstrvar_left, bstrvar_right;
2557 V_VT(out) = VT_BSTR;
2558
2559 VariantInit(&bstrvar_left);
2560 VariantInit(&bstrvar_right);
2561
2562 /* Convert left side variant to string */
2563 if (leftvt != VT_BSTR)
2564 {
2565 if (leftvt == VT_BOOL)
2566 {
2567 /* Bools are handled as localized True/False strings instead of 0/-1 as in MSDN */
2568 V_VT(&bstrvar_left) = VT_BSTR;
2569 if (V_BOOL(left) == TRUE)
2570 V_BSTR(&bstrvar_left) = SysAllocString(str_true);
2571 else
2572 V_BSTR(&bstrvar_left) = SysAllocString(str_false);
2573 }
2574 /* Fill with empty string for later concat with right side */
2575 else if (leftvt == VT_NULL)
2576 {
2577 V_VT(&bstrvar_left) = VT_BSTR;
2578 V_BSTR(&bstrvar_left) = SysAllocString(sz_empty);
2579 }
2580 else
2581 {
2582 hres = VariantChangeTypeEx(&bstrvar_left,left,0,0,VT_BSTR);
2583 if (hres != S_OK) {
2584 VariantClear(&bstrvar_left);
2585 VariantClear(&bstrvar_right);
2586 if (leftvt == VT_NULL && (rightvt == VT_EMPTY ||
2587 rightvt == VT_NULL || rightvt == VT_I2 ||
2588 rightvt == VT_I4 || rightvt == VT_R4 ||
2589 rightvt == VT_R8 || rightvt == VT_CY ||
2590 rightvt == VT_DATE || rightvt == VT_BSTR ||
2591 rightvt == VT_BOOL || rightvt == VT_DECIMAL ||
2592 rightvt == VT_I1 || rightvt == VT_UI1 ||
2593 rightvt == VT_UI2 || rightvt == VT_UI4 ||
2594 rightvt == VT_I8 || rightvt == VT_UI8 ||
2595 rightvt == VT_INT || rightvt == VT_UINT))
2596 return DISP_E_BADVARTYPE;
2597 return hres;
2598 }
2599 }
2600 }
2601
2602 /* convert right side variant to string */
2603 if (rightvt != VT_BSTR)
2604 {
2605 if (rightvt == VT_BOOL)
2606 {
2607 /* Bools are handled as localized True/False strings instead of 0/-1 as in MSDN */
2608 V_VT(&bstrvar_right) = VT_BSTR;
2609 if (V_BOOL(right) == TRUE)
2610 V_BSTR(&bstrvar_right) = SysAllocString(str_true);
2611 else
2612 V_BSTR(&bstrvar_right) = SysAllocString(str_false);
2613 }
2614 /* Fill with empty string for later concat with right side */
2615 else if (rightvt == VT_NULL)
2616 {
2617 V_VT(&bstrvar_right) = VT_BSTR;
2618 V_BSTR(&bstrvar_right) = SysAllocString(sz_empty);
2619 }
2620 else
2621 {
2622 hres = VariantChangeTypeEx(&bstrvar_right,right,0,0,VT_BSTR);
2623 if (hres != S_OK) {
2624 VariantClear(&bstrvar_left);
2625 VariantClear(&bstrvar_right);
2626 if (rightvt == VT_NULL && (leftvt == VT_EMPTY ||
2627 leftvt == VT_NULL || leftvt == VT_I2 ||
2628 leftvt == VT_I4 || leftvt == VT_R4 ||
2629 leftvt == VT_R8 || leftvt == VT_CY ||
2630 leftvt == VT_DATE || leftvt == VT_BSTR ||
2631 leftvt == VT_BOOL || leftvt == VT_DECIMAL ||
2632 leftvt == VT_I1 || leftvt == VT_UI1 ||
2633 leftvt == VT_UI2 || leftvt == VT_UI4 ||
2634 leftvt == VT_I8 || leftvt == VT_UI8 ||
2635 leftvt == VT_INT || leftvt == VT_UINT))
2636 return DISP_E_BADVARTYPE;
2637 return hres;
2638 }
2639 }
2640 }
2641
2642 /* Concat the resulting strings together */
2643 if (leftvt == VT_BSTR && rightvt == VT_BSTR)
2644 VarBstrCat (V_BSTR(left), V_BSTR(right), &V_BSTR(out));
2645 else if (leftvt != VT_BSTR && rightvt != VT_BSTR)
2646 VarBstrCat (V_BSTR(&bstrvar_left), V_BSTR(&bstrvar_right), &V_BSTR(out));
2647 else if (leftvt != VT_BSTR && rightvt == VT_BSTR)
2648 VarBstrCat (V_BSTR(&bstrvar_left), V_BSTR(right), &V_BSTR(out));
2649 else if (leftvt == VT_BSTR && rightvt != VT_BSTR)
2650 VarBstrCat (V_BSTR(left), V_BSTR(&bstrvar_right), &V_BSTR(out));
2651
2652 VariantClear(&bstrvar_left);
2653 VariantClear(&bstrvar_right);
2654 return S_OK;
2655 }
2656 }
2657
2658
2659 /* Wrapper around VariantChangeTypeEx() which permits changing a
2660 variant with VT_RESERVED flag set. Needed by VarCmp. */
2661 static HRESULT _VarChangeTypeExWrap (VARIANTARG* pvargDest,
2662 VARIANTARG* pvargSrc, LCID lcid, USHORT wFlags, VARTYPE vt)
2663 {
2664 HRESULT res;
2665 VARTYPE flags;
2666
2667 flags = V_VT(pvargSrc) & ~VT_TYPEMASK;
2668 V_VT(pvargSrc) &= ~VT_RESERVED;
2669 res = VariantChangeTypeEx(pvargDest,pvargSrc,lcid,wFlags,vt);
2670 V_VT(pvargSrc) |= flags;
2671
2672 return res;
2673 }
2674
2675 /**********************************************************************
2676 * VarCmp [OLEAUT32.176]
2677 *
2678 * Compare two variants.
2679 *
2680 * PARAMS
2681 * left [I] First variant
2682 * right [I] Second variant
2683 * lcid [I] LCID (locale identifier) for the comparison
2684 * flags [I] Flags to be used in the comparison:
2685 * NORM_IGNORECASE, NORM_IGNORENONSPACE, NORM_IGNORESYMBOLS,
2686 * NORM_IGNOREWIDTH, NORM_IGNOREKANATYPE, NORM_IGNOREKASHIDA
2687 *
2688 * RETURNS
2689 * VARCMP_LT: left variant is less than right variant.
2690 * VARCMP_EQ: input variants are equal.
2691 * VARCMP_GT: left variant is greater than right variant.
2692 * VARCMP_NULL: either one of the input variants is NULL.
2693 * Failure: An HRESULT error code indicating the error.
2694 *
2695 * NOTES
2696 * Native VarCmp up to and including WinXP doesn't like I1, UI2, VT_UI4,
2697 * UI8 and UINT as input variants. INT is accepted only as left variant.
2698 *
2699 * If both input variants are ERROR then VARCMP_EQ will be returned, else
2700 * an ERROR variant will trigger an error.
2701 *
2702 * Both input variants can have VT_RESERVED flag set which is ignored
2703 * unless one and only one of the variants is a BSTR and the other one
2704 * is not an EMPTY variant. All four VT_RESERVED combinations have a
2705 * different meaning:
2706 * - BSTR and other: BSTR is always greater than the other variant.
2707 * - BSTR|VT_RESERVED and other: a string comparison is performed.
2708 * - BSTR and other|VT_RESERVED: If the BSTR is a number a numeric
2709 * comparison will take place else the BSTR is always greater.
2710 * - BSTR|VT_RESERVED and other|VT_RESERVED: It seems that the other
2711 * variant is ignored and the return value depends only on the sign
2712 * of the BSTR if it is a number else the BSTR is always greater. A
2713 * positive BSTR is greater, a negative one is smaller than the other
2714 * variant.
2715 *
2716 * SEE
2717 * VarBstrCmp for the lcid and flags usage.
2718 */
2719 HRESULT WINAPI VarCmp(LPVARIANT left, LPVARIANT right, LCID lcid, DWORD flags)
2720 {
2721 VARTYPE lvt, rvt, vt;
2722 VARIANT rv,lv;
2723 DWORD xmask;
2724 HRESULT rc;
2725
2726 TRACE("(%p->(%s%s),%p->(%s%s),0x%08x,0x%08x)\n", left, debugstr_VT(left),
2727 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), lcid, flags);
2728
2729 lvt = V_VT(left) & VT_TYPEMASK;
2730 rvt = V_VT(right) & VT_TYPEMASK;
2731 xmask = (1 << lvt) | (1 << rvt);
2732
2733 /* If we have any flag set except VT_RESERVED bail out.
2734 Same for the left input variant type > VT_INT and for the
2735 right input variant type > VT_I8. Yes, VT_INT is only supported
2736 as left variant. Go figure */
2737 if (((V_VT(left) | V_VT(right)) & ~VT_TYPEMASK & ~VT_RESERVED) ||
2738 lvt > VT_INT || rvt > VT_I8) {
2739 return DISP_E_BADVARTYPE;
2740 }
2741
2742 /* Don't ask me why but native VarCmp cannot handle: VT_I1, VT_UI2, VT_UI4,
2743 VT_UINT and VT_UI8. Tested with DCOM98, Win2k, WinXP */
2744 if (rvt == VT_INT || xmask & (VTBIT_I1 | VTBIT_UI2 | VTBIT_UI4 | VTBIT_UI8 |
2745 VTBIT_DISPATCH | VTBIT_VARIANT | VTBIT_UNKNOWN | VTBIT_15))
2746 return DISP_E_TYPEMISMATCH;
2747
2748 /* If both variants are VT_ERROR return VARCMP_EQ */
2749 if (xmask == VTBIT_ERROR)
2750 return VARCMP_EQ;
2751 else if (xmask & VTBIT_ERROR)
2752 return DISP_E_TYPEMISMATCH;
2753
2754 if (xmask & VTBIT_NULL)
2755 return VARCMP_NULL;
2756
2757 VariantInit(&lv);
2758 VariantInit(&rv);
2759
2760 /* Two BSTRs, ignore VT_RESERVED */
2761 if (xmask == VTBIT_BSTR)
2762 return VarBstrCmp(V_BSTR(left), V_BSTR(right), lcid, flags);
2763
2764 /* A BSTR and an other variant; we have to take care of VT_RESERVED */
2765 if (xmask & VTBIT_BSTR) {
2766 VARIANT *bstrv, *nonbv;
2767 VARTYPE nonbvt;
2768 int swap = 0;
2769
2770 /* Swap the variants so the BSTR is always on the left */
2771 if (lvt == VT_BSTR) {
2772 bstrv = left;
2773 nonbv = right;
2774 nonbvt = rvt;
2775 } else {
2776 swap = 1;
2777 bstrv = right;
2778 nonbv = left;
2779 nonbvt = lvt;
2780 }
2781
2782 /* BSTR and EMPTY: ignore VT_RESERVED */
2783 if (nonbvt == VT_EMPTY)
2784 rc = (!V_BSTR(bstrv) || !*V_BSTR(bstrv)) ? VARCMP_EQ : VARCMP_GT;
2785 else {
2786 VARTYPE breserv = V_VT(bstrv) & ~VT_TYPEMASK;
2787 VARTYPE nreserv = V_VT(nonbv) & ~VT_TYPEMASK;
2788
2789 if (!breserv && !nreserv)
2790 /* No VT_RESERVED set ==> BSTR always greater */
2791 rc = VARCMP_GT;
2792 else if (breserv && !nreserv) {
2793 /* BSTR has VT_RESERVED set. Do a string comparison */
2794 rc = VariantChangeTypeEx(&rv,nonbv,lcid,0,VT_BSTR);
2795 if (FAILED(rc))
2796 return rc;
2797 rc = VarBstrCmp(V_BSTR(bstrv), V_BSTR(&rv), lcid, flags);
2798 } else if (V_BSTR(bstrv) && *V_BSTR(bstrv)) {
2799 /* Non NULL nor empty BSTR */
2800 /* If the BSTR is not a number the BSTR is greater */
2801 rc = _VarChangeTypeExWrap(&lv,bstrv,lcid,0,VT_R8);
2802 if (FAILED(rc))
2803 rc = VARCMP_GT;
2804 else if (breserv && nreserv)
2805 /* FIXME: This is strange: with both VT_RESERVED set it
2806 looks like the result depends only on the sign of
2807 the BSTR number */
2808 rc = (V_R8(&lv) >= 0) ? VARCMP_GT : VARCMP_LT;
2809 else
2810 /* Numeric comparison, will be handled below.
2811 VARCMP_NULL used only to break out. */
2812 rc = VARCMP_NULL;
2813 VariantClear(&lv);
2814 VariantClear(&rv);
2815 } else
2816 /* Empty or NULL BSTR */
2817 rc = VARCMP_GT;
2818 }
2819 /* Fixup the return code if we swapped left and right */
2820 if (swap) {
2821 if (rc == VARCMP_GT)
2822 rc = VARCMP_LT;
2823 else if (rc == VARCMP_LT)
2824 rc = VARCMP_GT;
2825 }
2826 if (rc != VARCMP_NULL)
2827 return rc;
2828 }
2829
2830 if (xmask & VTBIT_DECIMAL)
2831 vt = VT_DECIMAL;
2832 else if (xmask & VTBIT_BSTR)
2833 vt = VT_R8;
2834 else if (xmask & VTBIT_R4)
2835 vt = VT_R4;
2836 else if (xmask & (VTBIT_R8 | VTBIT_DATE))
2837 vt = VT_R8;
2838 else if (xmask & VTBIT_CY)
2839 vt = VT_CY;
2840 else
2841 /* default to I8 */
2842 vt = VT_I8;
2843
2844 /* Coerce the variants */
2845 rc = _VarChangeTypeExWrap(&lv,left,lcid,0,vt);
2846 if (rc == DISP_E_OVERFLOW && vt != VT_R8) {
2847 /* Overflow, change to R8 */
2848 vt = VT_R8;
2849 rc = _VarChangeTypeExWrap(&lv,left,lcid,0,vt);
2850 }
2851 if (FAILED(rc))
2852 return rc;
2853 rc = _VarChangeTypeExWrap(&rv,right,lcid,0,vt);
2854 if (rc == DISP_E_OVERFLOW && vt != VT_R8) {
2855 /* Overflow, change to R8 */
2856 vt = VT_R8;
2857 rc = _VarChangeTypeExWrap(&lv,left,lcid,0,vt);
2858 if (FAILED(rc))
2859 return rc;
2860 rc = _VarChangeTypeExWrap(&rv,right,lcid,0,vt);
2861 }
2862 if (FAILED(rc))
2863 return rc;
2864
2865 #define _VARCMP(a,b) \
2866 (((a) == (b)) ? VARCMP_EQ : (((a) < (b)) ? VARCMP_LT : VARCMP_GT))
2867
2868 switch (vt) {
2869 case VT_CY:
2870 return VarCyCmp(V_CY(&lv), V_CY(&rv));
2871 case VT_DECIMAL:
2872 return VarDecCmp(&V_DECIMAL(&lv), &V_DECIMAL(&rv));
2873 case VT_I8:
2874 return _VARCMP(V_I8(&lv), V_I8(&rv));
2875 case VT_R4:
2876 return _VARCMP(V_R4(&lv), V_R4(&rv));
2877 case VT_R8:
2878 return _VARCMP(V_R8(&lv), V_R8(&rv));
2879 default:
2880 /* We should never get here */
2881 return E_FAIL;
2882 }
2883 #undef _VARCMP
2884 }
2885
2886 static HRESULT VARIANT_FetchDispatchValue(LPVARIANT pvDispatch, LPVARIANT pValue)
2887 {
2888 HRESULT hres;
2889 static DISPPARAMS emptyParams = { NULL, NULL, 0, 0 };
2890
2891 if ((V_VT(pvDispatch) & VT_TYPEMASK) == VT_DISPATCH) {
2892 if (NULL == V_DISPATCH(pvDispatch)) return DISP_E_TYPEMISMATCH;
2893 hres = IDispatch_Invoke(V_DISPATCH(pvDispatch), DISPID_VALUE, &IID_NULL,
2894 LOCALE_USER_DEFAULT, DISPATCH_PROPERTYGET, &emptyParams, pValue,
2895 NULL, NULL);
2896 } else {
2897 hres = DISP_E_TYPEMISMATCH;
2898 }
2899 return hres;
2900 }
2901
2902 /**********************************************************************
2903 * VarAnd [OLEAUT32.142]
2904 *
2905 * Computes the logical AND of two variants.
2906 *
2907 * PARAMS
2908 * left [I] First variant
2909 * right [I] Second variant
2910 * result [O] Result variant
2911 *
2912 * RETURNS
2913 * Success: S_OK.
2914 * Failure: An HRESULT error code indicating the error.
2915 */
2916 HRESULT WINAPI VarAnd(LPVARIANT left, LPVARIANT right, LPVARIANT result)
2917 {
2918 HRESULT hres = S_OK;
2919 VARTYPE resvt = VT_EMPTY;
2920 VARTYPE leftvt,rightvt;
2921 VARTYPE rightExtraFlags,leftExtraFlags,ExtraFlags;
2922 VARIANT varLeft, varRight;
2923 VARIANT tempLeft, tempRight;
2924
2925 VariantInit(&varLeft);
2926 VariantInit(&varRight);
2927 VariantInit(&tempLeft);
2928 VariantInit(&tempRight);
2929
2930 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2931 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
2932
2933 /* Handle VT_DISPATCH by storing and taking address of returned value */
2934 if ((V_VT(left) & VT_TYPEMASK) == VT_DISPATCH)
2935 {
2936 hres = VARIANT_FetchDispatchValue(left, &tempLeft);
2937 if (FAILED(hres)) goto VarAnd_Exit;
2938 left = &tempLeft;
2939 }
2940 if ((V_VT(right) & VT_TYPEMASK) == VT_DISPATCH)
2941 {
2942 hres = VARIANT_FetchDispatchValue(right, &tempRight);
2943 if (FAILED(hres)) goto VarAnd_Exit;
2944 right = &tempRight;
2945 }
2946
2947 leftvt = V_VT(left)&VT_TYPEMASK;
2948 rightvt = V_VT(right)&VT_TYPEMASK;
2949 leftExtraFlags = V_VT(left)&(~VT_TYPEMASK);
2950 rightExtraFlags = V_VT(right)&(~VT_TYPEMASK);
2951
2952 if (leftExtraFlags != rightExtraFlags)
2953 {
2954 hres = DISP_E_BADVARTYPE;
2955 goto VarAnd_Exit;
2956 }
2957 ExtraFlags = leftExtraFlags;
2958
2959 /* Native VarAnd always returns an error when using extra
2960 * flags or if the variant combination is I8 and INT.
2961 */
2962 if ((leftvt == VT_I8 && rightvt == VT_INT) ||
2963 (leftvt == VT_INT && rightvt == VT_I8) ||
2964 ExtraFlags != 0)
2965 {
2966 hres = DISP_E_BADVARTYPE;
2967 goto VarAnd_Exit;
2968 }
2969
2970 /* Determine return type */
2971 else if (leftvt == VT_I8 || rightvt == VT_I8)
2972 resvt = VT_I8;
2973 else if (leftvt == VT_I4 || rightvt == VT_I4 ||
2974 leftvt == VT_UINT || rightvt == VT_UINT ||
2975 leftvt == VT_INT || rightvt == VT_INT ||
2976 leftvt == VT_UINT || rightvt == VT_UINT ||
2977 leftvt == VT_R4 || rightvt == VT_R4 ||
2978 leftvt == VT_R8 || rightvt == VT_R8 ||
2979 leftvt == VT_CY || rightvt == VT_CY ||
2980 leftvt == VT_DATE || rightvt == VT_DATE ||
2981 leftvt == VT_I1 || rightvt == VT_I1 ||
2982 leftvt == VT_UI2 || rightvt == VT_UI2 ||
2983 leftvt == VT_UI4 || rightvt == VT_UI4 ||
2984 leftvt == VT_UI8 || rightvt == VT_UI8 ||
2985 leftvt == VT_DECIMAL || rightvt == VT_DECIMAL)
2986 resvt = VT_I4;
2987 else if (leftvt == VT_UI1 || rightvt == VT_UI1 ||
2988 leftvt == VT_I2 || rightvt == VT_I2 ||
2989 leftvt == VT_EMPTY || rightvt == VT_EMPTY)
2990 if ((leftvt == VT_NULL && rightvt == VT_UI1) ||
2991 (leftvt == VT_UI1 && rightvt == VT_NULL) ||
2992 (leftvt == VT_UI1 && rightvt == VT_UI1))
2993 resvt = VT_UI1;
2994 else
2995 resvt = VT_I2;
2996 else if (leftvt == VT_BOOL || rightvt == VT_BOOL ||
2997 (leftvt == VT_BSTR && rightvt == VT_BSTR))
2998 resvt = VT_BOOL;
2999 else if (leftvt == VT_NULL || rightvt == VT_NULL ||
3000 leftvt == VT_BSTR || rightvt == VT_BSTR)
3001 resvt = VT_NULL;
3002 else
3003 {
3004 hres = DISP_E_BADVARTYPE;
3005 goto VarAnd_Exit;
3006 }
3007
3008 if (leftvt == VT_NULL || rightvt == VT_NULL)
3009 {
3010 /*
3011 * Special cases for when left variant is VT_NULL
3012 * (VT_NULL & 0 = VT_NULL, VT_NULL & value = value)
3013 */
3014 if (leftvt == VT_NULL)
3015 {
3016 VARIANT_BOOL b;
3017 switch(rightvt)
3018 {
3019 case VT_I1: if (V_I1(right)) resvt = VT_NULL; break;
3020 case VT_UI1: if (V_UI1(right)) resvt = VT_NULL; break;
3021 case VT_I2: if (V_I2(right)) resvt = VT_NULL; break;
3022 case VT_UI2: if (V_UI2(right)) resvt = VT_NULL; break;
3023 case VT_I4: if (V_I4(right)) resvt = VT_NULL; break;
3024 case VT_UI4: if (V_UI4(right)) resvt = VT_NULL; break;
3025 case VT_I8: if (V_I8(right)) resvt = VT_NULL; break;
3026 case VT_UI8: if (V_UI8(right)) resvt = VT_NULL; break;
3027 case VT_INT: if (V_INT(right)) resvt = VT_NULL; break;
3028 case VT_UINT: if (V_UINT(right)) resvt = VT_NULL; break;
3029 case VT_BOOL: if (V_BOOL(right)) resvt = VT_NULL; break;
3030 case VT_R4: if (V_R4(right)) resvt = VT_NULL; break;
3031 case VT_R8: if (V_R8(right)) resvt = VT_NULL; break;
3032 case VT_CY:
3033 if(V_CY(right).int64)
3034 resvt = VT_NULL;
3035 break;
3036 case VT_DECIMAL:
3037 if (DEC_HI32(&V_DECIMAL(right)) ||
3038 DEC_LO64(&V_DECIMAL(right)))
3039 resvt = VT_NULL;
3040 break;
3041 case VT_BSTR:
3042 hres = VarBoolFromStr(V_BSTR(right),
3043 LOCALE_USER_DEFAULT, VAR_LOCALBOOL, &b);
3044 if (FAILED(hres))
3045 return hres;
3046 else if (b)
3047 V_VT(result) = VT_NULL;
3048 else
3049 {
3050 V_VT(result) = VT_BOOL;
3051 V_BOOL(result) = b;
3052 }
3053 goto VarAnd_Exit;
3054 }
3055 }
3056 V_VT(result) = resvt;
3057 goto VarAnd_Exit;
3058 }
3059
3060 hres = VariantCopy(&varLeft, left);
3061 if (FAILED(hres)) goto VarAnd_Exit;
3062
3063 hres = VariantCopy(&varRight, right);
3064 if (FAILED(hres)) goto VarAnd_Exit;
3065
3066 if (resvt == VT_I4 && V_VT(&varLeft) == VT_UI4)
3067 V_VT(&varLeft) = VT_I4; /* Don't overflow */
3068 else
3069 {
3070 double d;
3071
3072 if (V_VT(&varLeft) == VT_BSTR &&
3073 FAILED(VarR8FromStr(V_BSTR(&varLeft),
3074 LOCALE_USER_DEFAULT, 0, &d)))
3075 hres = VariantChangeType(&varLeft,&varLeft,
3076 VARIANT_LOCALBOOL, VT_BOOL);
3077 if (SUCCEEDED(hres) && V_VT(&varLeft) != resvt)
3078 hres = VariantChangeType(&varLeft,&varLeft,0,resvt);
3079 if (FAILED(hres)) goto VarAnd_Exit;
3080 }
3081
3082 if (resvt == VT_I4 && V_VT(&varRight) == VT_UI4)
3083 V_VT(&varRight) = VT_I4; /* Don't overflow */
3084 else
3085 {
3086 double d;
3087
3088 if (V_VT(&varRight) == VT_BSTR &&
3089 FAILED(VarR8FromStr(V_BSTR(&varRight),
3090 LOCALE_USER_DEFAULT, 0, &d)))
3091 hres = VariantChangeType(&varRight, &varRight,
3092 VARIANT_LOCALBOOL, VT_BOOL);
3093 if (SUCCEEDED(hres) && V_VT(&varRight) != resvt)
3094 hres = VariantChangeType(&varRight, &varRight, 0, resvt);
3095 if (FAILED(hres)) goto VarAnd_Exit;
3096 }
3097
3098 V_VT(result) = resvt;
3099 switch(resvt)
3100 {
3101 case VT_I8:
3102 V_I8(result) = V_I8(&varLeft) & V_I8(&varRight);
3103 break;
3104 case VT_I4:
3105 V_I4(result) = V_I4(&varLeft) & V_I4(&varRight);
3106 break;
3107 case VT_I2:
3108 V_I2(result) = V_I2(&varLeft) & V_I2(&varRight);
3109 break;
3110 case VT_UI1:
3111 V_UI1(result) = V_UI1(&varLeft) & V_UI1(&varRight);
3112 break;
3113 case VT_BOOL:
3114 V_BOOL(result) = V_BOOL(&varLeft) & V_BOOL(&varRight);
3115 break;
3116 default:
3117 FIXME("Couldn't bitwise AND variant types %d,%d\n",
3118 leftvt,rightvt);
3119 }
3120
3121 VarAnd_Exit:
3122 VariantClear(&varLeft);
3123 VariantClear(&varRight);
3124 VariantClear(&tempLeft);
3125 VariantClear(&tempRight);
3126
3127 return hres;
3128 }
3129
3130 /**********************************************************************
3131 * VarAdd [OLEAUT32.141]
3132 *
3133 * Add two variants.
3134 *
3135 * PARAMS
3136 * left [I] First variant
3137 * right [I] Second variant
3138 * result [O] Result variant
3139 *
3140 * RETURNS
3141 * Success: S_OK.
3142 * Failure: An HRESULT error code indicating the error.
3143 *
3144 * NOTES
3145 * Native VarAdd up to and including WinXP doesn't like I1, UI2, UI4,
3146 * UI8, INT and UINT as input variants.
3147 *
3148 * Native VarAdd doesn't check for NULL in/out pointers and crashes. We do the
3149 * same here.
3150 *
3151 * FIXME
3152 * Overflow checking for R8 (double) overflow. Return DISP_E_OVERFLOW in that
3153 * case.
3154 */
3155 HRESULT WINAPI VarAdd(LPVARIANT left, LPVARIANT right, LPVARIANT result)
3156 {
3157 HRESULT hres;
3158 VARTYPE lvt, rvt, resvt, tvt;
3159 VARIANT lv, rv, tv;
3160 VARIANT tempLeft, tempRight;
3161 double r8res;
3162
3163 /* Variant priority for coercion. Sorted from lowest to highest.
3164 VT_ERROR shows an invalid input variant type. */
3165 enum coerceprio { vt_EMPTY, vt_UI1, vt_I2, vt_I4, vt_I8, vt_BSTR,vt_R4,
3166 vt_R8, vt_CY, vt_DATE, vt_DECIMAL, vt_DISPATCH, vt_NULL,
3167 vt_ERROR };
3168 /* Mapping from priority to variant type. Keep in sync with coerceprio! */
3169 static const VARTYPE prio2vt[] = { VT_EMPTY, VT_UI1, VT_I2, VT_I4, VT_I8, VT_BSTR, VT_R4,
3170 VT_R8, VT_CY, VT_DATE, VT_DECIMAL, VT_DISPATCH,
3171 VT_NULL, VT_ERROR };
3172
3173 /* Mapping for coercion from input variant to priority of result variant. */
3174 static const VARTYPE coerce[] = {
3175 /* VT_EMPTY, VT_NULL, VT_I2, VT_I4, VT_R4 */
3176 vt_EMPTY, vt_NULL, vt_I2, vt_I4, vt_R4,
3177 /* VT_R8, VT_CY, VT_DATE, VT_BSTR, VT_DISPATCH */
3178 vt_R8, vt_CY, vt_DATE, vt_BSTR, vt_DISPATCH,
3179 /* VT_ERROR, VT_BOOL, VT_VARIANT, VT_UNKNOWN, VT_DECIMAL */
3180 vt_ERROR, vt_I2, vt_ERROR, vt_ERROR, vt_DECIMAL,
3181 /* 15, VT_I1, VT_UI1, VT_UI2, VT_UI4 VT_I8 */
3182 vt_ERROR, vt_ERROR, vt_UI1, vt_ERROR, vt_ERROR, vt_I8
3183 };
3184
3185 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
3186 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right),
3187 result);
3188
3189 VariantInit(&lv);
3190 VariantInit(&rv);
3191 VariantInit(&tv);
3192 VariantInit(&tempLeft);
3193 VariantInit(&tempRight);
3194
3195 /* Handle VT_DISPATCH by storing and taking address of returned value */
3196 if ((V_VT(left) & VT_TYPEMASK) != VT_NULL && (V_VT(right) & VT_TYPEMASK) != VT_NULL)
3197 {
3198 if ((V_VT(left) & VT_TYPEMASK) == VT_DISPATCH)
3199 {
3200 hres = VARIANT_FetchDispatchValue(left, &tempLeft);
3201 if (FAILED(hres)) goto end;
3202 left = &tempLeft;
3203 }
3204 if ((V_VT(right) & VT_TYPEMASK) == VT_DISPATCH)
3205 {
3206 hres = VARIANT_FetchDispatchValue(right, &tempRight);
3207 if (FAILED(hres)) goto end;
3208 right = &tempRight;
3209 }
3210 }
3211
3212 lvt = V_VT(left)&VT_TYPEMASK;
3213 rvt = V_VT(right)&VT_TYPEMASK;
3214
3215 /* If we have any flag set (VT_ARRAY, VT_VECTOR, etc.) bail out.
3216 Same for any input variant type > VT_I8 */
3217 if (V_VT(left) & ~VT_TYPEMASK || V_VT(right) & ~VT_TYPEMASK ||
3218 lvt > VT_I8 || rvt > VT_I8) {
3219 hres = DISP_E_BADVARTYPE;
3220 goto end;
3221 }
3222
3223 /* Determine the variant type to coerce to. */
3224 if (coerce[lvt] > coerce[rvt]) {
3225 resvt = prio2vt[coerce[lvt]];
3226 tvt = prio2vt[coerce[rvt]];
3227 } else {
3228 resvt = prio2vt[coerce[rvt]];
3229 tvt = prio2vt[coerce[lvt]];
3230 }
3231
3232 /* Special cases where the result variant type is defined by both
3233 input variants and not only that with the highest priority */
3234 if (resvt == VT_BSTR) {
3235 if (tvt == VT_EMPTY || tvt == VT_BSTR)
3236 resvt = VT_BSTR;
3237 else
3238 resvt = VT_R8;
3239 }
3240 if (resvt == VT_R4 && (tvt == VT_BSTR || tvt == VT_I8 || tvt == VT_I4))
3241 resvt = VT_R8;
3242
3243 /* For overflow detection use the biggest compatible type for the
3244 addition */
3245 switch (resvt) {
3246 case VT_ERROR:
3247 hres = DISP_E_BADVARTYPE;
3248 goto end;
3249 case VT_NULL:
3250 hres = S_OK;
3251 V_VT(result) = VT_NULL;
3252 goto end;
3253 case VT_DISPATCH:
3254 FIXME("cannot handle variant type VT_DISPATCH\n");
3255 hres = DISP_E_TYPEMISMATCH;
3256 goto end;
3257 case VT_EMPTY:
3258 resvt = VT_I2;
3259 /* Fall through */
3260 case VT_UI1:
3261 case VT_I2:
3262 case VT_I4:
3263 case VT_I8:
3264 tvt = VT_I8;
3265 break;
3266 case VT_DATE:
3267 case VT_R4:
3268 tvt = VT_R8;
3269 break;
3270 default:
3271 tvt = resvt;
3272 }
3273
3274 /* Now coerce the variants */
3275 hres = VariantChangeType(&lv, left, 0, tvt);
3276 if (FAILED(hres))
3277 goto end;
3278 hres = VariantChangeType(&rv, right, 0, tvt);
3279 if (FAILED(hres))
3280 goto end;
3281
3282 /* Do the math */
3283 hres = S_OK;
3284 V_VT(result) = resvt;
3285 switch (tvt) {
3286 case VT_DECIMAL:
3287 hres = VarDecAdd(&V_DECIMAL(&lv), &V_DECIMAL(&rv),
3288 &V_DECIMAL(result));
3289 goto end;
3290 case VT_CY:
3291 hres = VarCyAdd(V_CY(&lv), V_CY(&rv), &V_CY(result));
3292 goto end;
3293 case VT_BSTR:
3294 /* We do not add those, we concatenate them. */
3295 hres = VarBstrCat(V_BSTR(&lv), V_BSTR(&rv), &V_BSTR(result));
3296 goto end;
3297 case VT_I8:
3298 /* Overflow detection */
3299 r8res = (double)V_I8(&lv) + (double)V_I8(&rv);
3300 if (r8res > (double)I8_MAX || r8res < (double)I8_MIN) {
3301 V_VT(result) = VT_R8;
3302 V_R8(result) = r8res;
3303 goto end;
3304 } else {
3305 V_VT(&tv) = tvt;
3306 V_I8(&tv) = V_I8(&lv) + V_I8(&rv);
3307 }
3308 break;
3309 case VT_R8:
3310 V_VT(&tv) = tvt;
3311 /* FIXME: overflow detection */
3312 V_R8(&tv) = V_R8(&lv) + V_R8(&rv);
3313 break;
3314 default:
3315 ERR("We shouldn't get here! tvt = %d!\n", tvt);
3316 break;
3317 }
3318 if (resvt != tvt) {
3319 if ((hres = VariantChangeType(result, &tv, 0, resvt)) != S_OK) {
3320 /* Overflow! Change to the vartype with the next higher priority.
3321 With one exception: I4 ==> R8 even if it would fit in I8 */
3322 if (resvt == VT_I4)
3323 resvt = VT_R8;
3324 else
3325 resvt = prio2vt[coerce[resvt] + 1];
3326 hres = VariantChangeType(result, &tv, 0, resvt);
3327 }
3328 } else
3329 hres = VariantCopy(result, &tv);
3330
3331 end:
3332 if (hres != S_OK) {
3333 V_VT(result) = VT_EMPTY;
3334 V_I4(result) = 0; /* No V_EMPTY */
3335 }
3336 VariantClear(&lv);
3337 VariantClear(&rv);
3338 VariantClear(&tv);
3339 VariantClear(&tempLeft);
3340 VariantClear(&tempRight);
3341 TRACE("returning 0x%8x (variant type %s)\n", hres, debugstr_VT(result));
3342 return hres;
3343 }
3344
3345 /**********************************************************************
3346 * VarMul [OLEAUT32.156]
3347 *
3348 * Multiply two variants.
3349 *
3350 * PARAMS
3351 * left [I] First variant
3352 * right [I] Second variant
3353 * result [O] Result variant
3354 *
3355 * RETURNS
3356 * Success: S_OK.
3357 * Failure: An HRESULT error code indicating the error.
3358 *
3359 * NOTES
3360 * Native VarMul up to and including WinXP doesn't like I1, UI2, UI4,
3361 * UI8, INT and UINT as input variants. But it can multiply apples with oranges.
3362 *
3363 * Native VarMul doesn't check for NULL in/out pointers and crashes. We do the
3364 * same here.
3365 *
3366 * FIXME
3367 * Overflow checking for R8 (double) overflow. Return DISP_E_OVERFLOW in that
3368 * case.
3369 */
3370 HRESULT WINAPI VarMul(LPVARIANT left, LPVARIANT right, LPVARIANT result)
3371 {
3372 HRESULT hres;
3373 VARTYPE lvt, rvt, resvt, tvt;
3374 VARIANT lv, rv, tv;
3375 VARIANT tempLeft, tempRight;
3376 double r8res;
3377
3378 /* Variant priority for coercion. Sorted from lowest to highest.
3379 VT_ERROR shows an invalid input variant type. */
3380 enum coerceprio { v