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122 lines
4.2 KiB
C
122 lines
4.2 KiB
C
/*
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* Variant Inlines
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*
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* Copyright 2003 Jon Griffiths
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "windef.h"
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#include "winerror.h"
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#include "objbase.h"
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#include "oleauto.h"
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#include <math.h>
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/* Get just the type from a variant pointer */
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#define V_TYPE(v) (V_VT((v)) & VT_TYPEMASK)
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/* Flags set in V_VT, other than the actual type value */
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#define VT_EXTRA_TYPE (VT_VECTOR|VT_ARRAY|VT_BYREF|VT_RESERVED)
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/* Get the extra flags from a variant pointer */
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#define V_EXTRA_TYPE(v) (V_VT((v)) & VT_EXTRA_TYPE)
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/* Missing in Windows but useful VTBIT_* defines */
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#define VTBIT_BOOL (1 << VT_BSTR)
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#define VTBIT_BSTR (1 << VT_BSTR)
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#define VTBIT_DATE (1 << VT_DATE)
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#define VTBIT_DISPATCH (1 << VT_DISPATCH)
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#define VTBIT_EMPTY (1 << VT_EMPTY)
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#define VTBIT_ERROR (1 << VT_ERROR)
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#define VTBIT_INT (1 << VT_INT)
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#define VTBIT_NULL (1 << VT_NULL)
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#define VTBIT_UINT (1 << VT_UINT)
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#define VTBIT_UNKNOWN (1 << VT_UNKNOWN)
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#define VTBIT_VARIANT (1 << VT_VARIANT)
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#define VTBIT_15 (1 << 15) /* no variant type with this number */
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/* Size constraints */
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#define I1_MAX 0x7f
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#define I1_MIN ((-I1_MAX)-1)
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#define UI1_MAX 0xff
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#define UI1_MIN 0
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#define I2_MAX 0x7fff
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#define I2_MIN ((-I2_MAX)-1)
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#define UI2_MAX 0xffff
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#define UI2_MIN 0
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#define I4_MAX 0x7fffffff
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#define I4_MIN ((-I4_MAX)-1)
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#define UI4_MAX 0xffffffff
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#define UI4_MIN 0
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#define I8_MAX (((LONGLONG)I4_MAX << 32) | UI4_MAX)
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#define I8_MIN ((-I8_MAX)-1)
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#define UI8_MAX (((ULONGLONG)UI4_MAX << 32) | UI4_MAX)
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#define UI8_MIN 0
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#define DATE_MAX 2958465
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#define DATE_MIN -657434
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#define R4_MAX 3.402823567797336e38
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#define R4_MIN 1.40129846432481707e-45
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#define R8_MAX 1.79769313486231470e+308
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#define R8_MIN 4.94065645841246544e-324
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/* Value of sign for a positive decimal number */
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#define DECIMAL_POS 0
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/* Native headers don't change the union ordering for DECIMAL sign/scale (duh).
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* This means that the signscale member is only useful for setting both members to 0.
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* SIGNSCALE creates endian-correct values so that we can properly set both at once
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* to values other than 0.
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*/
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#ifdef WORDS_BIGENDIAN
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#define SIGNSCALE(sign,scale) (((scale) << 8) | sign)
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#else
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#define SIGNSCALE(sign,scale) (((sign) << 8) | scale)
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#endif
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/* Macros for getting at a DECIMAL's parts */
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#define DEC_SIGN(d) ((d)->u.s.sign)
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#define DEC_SCALE(d) ((d)->u.s.scale)
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#define DEC_SIGNSCALE(d) ((d)->u.signscale)
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#define DEC_HI32(d) ((d)->Hi32)
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#define DEC_MID32(d) ((d)->u1.s1.Mid32)
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#define DEC_LO32(d) ((d)->u1.s1.Lo32)
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#define DEC_LO64(d) ((d)->u1.Lo64)
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#define DEC_MAX_SCALE 28 /* Maximum scale for a decimal */
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/* Internal flags for low level conversion functions */
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#define VAR_BOOLONOFF 0x0400 /* Convert bool to "On"/"Off" */
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#define VAR_BOOLYESNO 0x0800 /* Convert bool to "Yes"/"No" */
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#define VAR_NEGATIVE 0x1000 /* Number is negative */
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/* The localised characters that make up a valid number */
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typedef struct tagVARIANT_NUMBER_CHARS
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{
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WCHAR cNegativeSymbol;
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WCHAR cPositiveSymbol;
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WCHAR cDecimalPoint;
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WCHAR cDigitSeparator;
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WCHAR cCurrencyLocal;
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WCHAR cCurrencyLocal2;
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WCHAR cCurrencyDecimalPoint;
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WCHAR cCurrencyDigitSeparator;
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} VARIANT_NUMBER_CHARS;
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unsigned int get_type_size(ULONG*, VARTYPE) DECLSPEC_HIDDEN;
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BOOL VARIANT_GetLocalisedText(LANGID, DWORD, WCHAR *) DECLSPEC_HIDDEN;
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HRESULT VARIANT_ClearInd(VARIANTARG *) DECLSPEC_HIDDEN;
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BOOL get_date_format(LCID, DWORD, const SYSTEMTIME *,
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const WCHAR *, WCHAR *, int) DECLSPEC_HIDDEN;
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