1 /* 2 * Variant Inlines 3 * 4 * Copyright 2003 Jon Griffiths 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 19 */ 20 21 #pragma once 22 23 #include "windef.h" 24 #include "winerror.h" 25 #include "objbase.h" 26 #include "oleauto.h" 27 #include <math.h> 28 29 /* Get just the type from a variant pointer */ 30 #define V_TYPE(v) (V_VT((v)) & VT_TYPEMASK) 31 32 /* Flags set in V_VT, other than the actual type value */ 33 #define VT_EXTRA_TYPE (VT_VECTOR|VT_ARRAY|VT_BYREF|VT_RESERVED) 34 35 /* Get the extra flags from a variant pointer */ 36 #define V_EXTRA_TYPE(v) (V_VT((v)) & VT_EXTRA_TYPE) 37 38 /* Missing in Windows but useful VTBIT_* defines */ 39 #define VTBIT_BOOL (1 << VT_BSTR) 40 #define VTBIT_BSTR (1 << VT_BSTR) 41 #define VTBIT_DATE (1 << VT_DATE) 42 #define VTBIT_DISPATCH (1 << VT_DISPATCH) 43 #define VTBIT_EMPTY (1 << VT_EMPTY) 44 #define VTBIT_ERROR (1 << VT_ERROR) 45 #define VTBIT_INT (1 << VT_INT) 46 #define VTBIT_NULL (1 << VT_NULL) 47 #define VTBIT_UINT (1 << VT_UINT) 48 #define VTBIT_UNKNOWN (1 << VT_UNKNOWN) 49 #define VTBIT_VARIANT (1 << VT_VARIANT) 50 #define VTBIT_15 (1 << 15) /* no variant type with this number */ 51 52 /* Size constraints */ 53 #define I1_MAX 0x7f 54 #define I1_MIN ((-I1_MAX)-1) 55 #define UI1_MAX 0xff 56 #define UI1_MIN 0 57 #define I2_MAX 0x7fff 58 #define I2_MIN ((-I2_MAX)-1) 59 #define UI2_MAX 0xffff 60 #define UI2_MIN 0 61 #define I4_MAX 0x7fffffff 62 #define I4_MIN ((-I4_MAX)-1) 63 #define UI4_MAX 0xffffffff 64 #define UI4_MIN 0 65 #define I8_MAX (((LONGLONG)I4_MAX << 32) | UI4_MAX) 66 #define I8_MIN ((-I8_MAX)-1) 67 #define UI8_MAX (((ULONGLONG)UI4_MAX << 32) | UI4_MAX) 68 #define UI8_MIN 0 69 #define DATE_MAX 2958465 70 #define DATE_MIN -657434 71 #define R4_MAX 3.402823567797336e38 72 #define R4_MIN 1.40129846432481707e-45 73 #define R8_MAX 1.79769313486231470e+308 74 #define R8_MIN 4.94065645841246544e-324 75 76 /* Value of sign for a positive decimal number */ 77 #define DECIMAL_POS 0 78 79 /* Native headers don't change the union ordering for DECIMAL sign/scale (duh). 80 * This means that the signscale member is only useful for setting both members to 0. 81 * SIGNSCALE creates endian-correct values so that we can properly set both at once 82 * to values other than 0. 83 */ 84 #ifdef WORDS_BIGENDIAN 85 #define SIGNSCALE(sign,scale) (((scale) << 8) | sign) 86 #else 87 #define SIGNSCALE(sign,scale) (((sign) << 8) | scale) 88 #endif 89 90 /* Macros for getting at a DECIMAL's parts */ 91 #define DEC_SIGN(d) ((d)->u.s.sign) 92 #define DEC_SCALE(d) ((d)->u.s.scale) 93 #define DEC_SIGNSCALE(d) ((d)->u.signscale) 94 #define DEC_HI32(d) ((d)->Hi32) 95 #define DEC_MID32(d) ((d)->u1.s1.Mid32) 96 #define DEC_LO32(d) ((d)->u1.s1.Lo32) 97 #define DEC_LO64(d) ((d)->u1.Lo64) 98 99 #define DEC_MAX_SCALE 28 /* Maximum scale for a decimal */ 100 101 /* Internal flags for low level conversion functions */ 102 #define VAR_BOOLONOFF 0x0400 /* Convert bool to "On"/"Off" */ 103 #define VAR_BOOLYESNO 0x0800 /* Convert bool to "Yes"/"No" */ 104 #define VAR_NEGATIVE 0x1000 /* Number is negative */ 105 106 /* The localised characters that make up a valid number */ 107 typedef struct tagVARIANT_NUMBER_CHARS 108 { 109 WCHAR cNegativeSymbol; 110 WCHAR cPositiveSymbol; 111 WCHAR cDecimalPoint; 112 WCHAR cDigitSeparator; 113 WCHAR cCurrencyLocal; 114 WCHAR cCurrencyLocal2; 115 WCHAR cCurrencyDecimalPoint; 116 WCHAR cCurrencyDigitSeparator; 117 } VARIANT_NUMBER_CHARS; 118 119 unsigned int get_type_size(ULONG*, VARTYPE) DECLSPEC_HIDDEN; 120 HRESULT VARIANT_ClearInd(VARIANTARG *) DECLSPEC_HIDDEN; 121 BOOL get_date_format(LCID, DWORD, const SYSTEMTIME *, 122 const WCHAR *, WCHAR *, int) DECLSPEC_HIDDEN; 123