3f66f6a5b3
This keyword is not expanded by Git which means it's not replaced with the correct revision value in the releases made using git-based scripts and it's confusing to have lines with unexpanded "$Id$" in the released files. As expanding them with Git is not that simple (it could be done with git archive and export-subst attribute) and there are not many benefits in having them in the first place, just remove all these lines. If nothing else, this will make an eventual transition to Git simpler. Closes #14487. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
487 lines
18 KiB
C++
487 lines
18 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/wxcrtvararg.h
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// Purpose: Type-safe ANSI and Unicode builds compatible wrappers for
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// printf(), scanf() and related CRT functions
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// Author: Joel Farley, Ove Kåven
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// Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee
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// Created: 2007-02-19
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// Copyright: (c) 2007 REA Elektronik GmbH
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_WXCRTVARARG_H_
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#define _WX_WXCRTVARARG_H_
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// NB: User code should include wx/crt.h instead of including this
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// header directly.
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#include "wx/wxcrt.h"
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#include "wx/strvararg.h"
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#include "wx/string.h"
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// ----------------------------------------------------------------------------
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// CRT functions aliases
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// ----------------------------------------------------------------------------
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/* Required for wxPrintf() etc */
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#include <stdarg.h>
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/* printf() family saga */
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/*
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For many old Unix systems [v]snprintf()/vsscanf() exists in the system
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libraries but not in the headers, so we need to declare it ourselves to be
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able to use it.
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*/
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#ifdef __UNIX__
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#if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
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#ifdef __cplusplus
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extern "C"
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#else
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extern
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#endif
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int vsnprintf(char *str, size_t size, const char *format, va_list ap);
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#endif /* !HAVE_VSNPRINTF_DECL */
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#if defined(HAVE_SNPRINTF) && !defined(HAVE_SNPRINTF_DECL)
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#ifdef __cplusplus
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extern "C"
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#else
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extern
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#endif
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int snprintf(char *str, size_t size, const char *format, ...);
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#endif /* !HAVE_SNPRINTF_DECL */
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#if defined(HAVE_VSSCANF) && !defined(HAVE_VSSCANF_DECL)
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#ifdef __cplusplus
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extern "C"
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#else
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extern
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#endif
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int vsscanf(const char *str, const char *format, va_list ap);
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#endif /* !HAVE_VSSCANF_DECL */
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/* Wrapper for vsnprintf if it's 3rd parameter is non-const. Note: the
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* same isn't done for snprintf below, the builtin wxSnprintf_ is used
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* instead since it's already a simple wrapper */
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#if defined __cplusplus && defined HAVE_BROKEN_VSNPRINTF_DECL
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inline int wx_fixed_vsnprintf(char *str, size_t size, const char *format, va_list ap)
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{
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return vsnprintf(str, size, (char*)format, ap);
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}
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#endif
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#endif /* __UNIX__ */
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/*
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mingw32 normally uses MSVCRT which has non-standard vswprintf() and so
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normally _vsnwprintf() is used instead, the only exception is when mingw32
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is used with STLPort which does have a standard vswprintf() starting from
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version 5.1 which we can use.
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*/
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#ifdef __MINGW32__
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#if defined(_STLPORT_VERSION) && _STLPORT_VERSION >= 0x510
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#ifndef HAVE_VSWPRINTF
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#define HAVE_VSWPRINTF
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#endif
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#elif defined(HAVE_VSWPRINTF)
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/* can't use non-standard vswprintf() */
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#undef HAVE_VSWPRINTF
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#endif
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#endif /* __MINGW32__ */
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#if defined(__WATCOMC__)
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#define HAVE_VSWPRINTF 1
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#endif
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#if wxUSE_PRINTF_POS_PARAMS
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/*
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The systems where vsnprintf() supports positional parameters should
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define the HAVE_UNIX98_PRINTF symbol.
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On systems which don't (e.g. Windows) we are forced to use
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our wxVsnprintf() implementation.
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*/
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#if defined(HAVE_UNIX98_PRINTF)
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#ifdef HAVE_VSWPRINTF
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#define wxCRT_VsnprintfW vswprintf
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#endif
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#ifdef HAVE_BROKEN_VSNPRINTF_DECL
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#define wxCRT_VsnprintfA wx_fixed_vsnprintf
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#else
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#define wxCRT_VsnprintfA vsnprintf
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#endif
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#else /* !HAVE_UNIX98_PRINTF */
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/*
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The only compiler with positional parameters support under Windows
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is VC++ 8.0 which provides a new xxprintf_p() functions family.
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The 2003 PSDK includes a slightly earlier version of VC8 than the
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main release and does not have the printf_p functions.
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*/
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#if defined _MSC_FULL_VER && _MSC_FULL_VER >= 140050727 && !defined __WXWINCE__
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#define wxCRT_VsnprintfA _vsprintf_p
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#define wxCRT_VsnprintfW _vswprintf_p
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#endif
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#endif /* HAVE_UNIX98_PRINTF/!HAVE_UNIX98_PRINTF */
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#else /* !wxUSE_PRINTF_POS_PARAMS */
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/*
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We always want to define safe snprintf() function to be used instead of
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sprintf(). Some compilers already have it (or rather vsnprintf() which
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we really need...), otherwise we implement it using our own printf()
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code.
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We define function with a trailing underscore here because the real one
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is a wrapper around it as explained below
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*/
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#if defined(__VISUALC__) || \
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(defined(__BORLANDC__) && __BORLANDC__ >= 0x540)
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#define wxCRT_VsnprintfA _vsnprintf
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#define wxCRT_VsnprintfW _vsnwprintf
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#else
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#if defined(HAVE__VSNWPRINTF)
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#define wxCRT_VsnprintfW _vsnwprintf
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#elif defined(HAVE_VSWPRINTF)
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#define wxCRT_VsnprintfW vswprintf
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#elif defined(__WATCOMC__)
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#define wxCRT_VsnprintfW _vsnwprintf
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#endif
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#if defined(HAVE_VSNPRINTF) \
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|| defined(__WATCOMC__)
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#ifdef HAVE_BROKEN_VSNPRINTF_DECL
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#define wxCRT_VsnprintfA wx_fixed_vsnprintf
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#else
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#define wxCRT_VsnprintfA vsnprintf
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#endif
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#endif
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#endif
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#endif /* wxUSE_PRINTF_POS_PARAMS/!wxUSE_PRINTF_POS_PARAMS */
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#ifndef wxCRT_VsnprintfW
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/* no (suitable) vsnprintf(), cook our own */
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WXDLLIMPEXP_BASE int
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wxCRT_VsnprintfW(wchar_t *buf, size_t len, const wchar_t *format, va_list argptr);
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#define wxUSE_WXVSNPRINTFW 1
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#else
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#define wxUSE_WXVSNPRINTFW 0
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#endif
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#ifndef wxCRT_VsnprintfA
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/* no (suitable) vsnprintf(), cook our own */
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WXDLLIMPEXP_BASE int
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wxCRT_VsnprintfA(char *buf, size_t len, const char *format, va_list argptr);
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#define wxUSE_WXVSNPRINTFA 1
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#else
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#define wxUSE_WXVSNPRINTFA 0
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#endif
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// for wxString code, define wxUSE_WXVSNPRINTF to indicate that wx
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// implementation is used no matter what (in UTF-8 build, either *A or *W
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// version may be called):
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#if !wxUSE_UNICODE
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#define wxUSE_WXVSNPRINTF wxUSE_WXVSNPRINTFA
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#elif wxUSE_UNICODE_WCHAR
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#define wxUSE_WXVSNPRINTF wxUSE_WXVSNPRINTFW
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#elif wxUSE_UTF8_LOCALE_ONLY
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#define wxUSE_WXVSNPRINTF wxUSE_WXVSNPRINTFA
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#else // UTF-8 under any locale
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#define wxUSE_WXVSNPRINTF (wxUSE_WXVSNPRINTFA && wxUSE_WXVSNPRINTFW)
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#endif
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#define wxCRT_FprintfA fprintf
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#define wxCRT_PrintfA printf
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#define wxCRT_VfprintfA vfprintf
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#define wxCRT_VprintfA vprintf
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#define wxCRT_VsprintfA vsprintf
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/*
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In Unicode mode we need to have all standard functions such as wprintf() and
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so on but not all systems have them so use our own implementations in this
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case.
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*/
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#if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_WPRINTF)
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#define wxNEED_WPRINTF
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#endif
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#if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_VSWSCANF)
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#define wxNEED_VSWSCANF
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#endif
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#if defined(wxNEED_WPRINTF)
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/*
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we need to implement all wide character printf functions either because
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we don't have them at all or because they don't have the semantics we
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need
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*/
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int wxCRT_PrintfW( const wchar_t *format, ... );
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int wxCRT_FprintfW( FILE *stream, const wchar_t *format, ... );
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int wxCRT_VfprintfW( FILE *stream, const wchar_t *format, va_list ap );
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int wxCRT_VprintfW( const wchar_t *format, va_list ap );
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int wxCRT_VsprintfW( wchar_t *str, const wchar_t *format, va_list ap );
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#else /* !wxNEED_WPRINTF */
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#define wxCRT_FprintfW fwprintf
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#define wxCRT_PrintfW wprintf
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#define wxCRT_VfprintfW vfwprintf
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#define wxCRT_VprintfW vwprintf
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#if defined(__WINDOWS__) && !defined(HAVE_VSWPRINTF)
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// only non-standard vswprintf() without buffer size argument can be used here
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#define wxCRT_VsprintfW vswprintf
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#endif
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#endif /* wxNEED_WPRINTF */
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/* Required for wxScanf() etc. */
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#define wxCRT_ScanfA scanf
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#define wxCRT_SscanfA sscanf
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#define wxCRT_FscanfA fscanf
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#define wxCRT_VsscanfA vsscanf
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#if defined(wxNEED_WPRINTF)
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int wxCRT_ScanfW(const wchar_t *format, ...);
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int wxCRT_SscanfW(const wchar_t *str, const wchar_t *format, ...);
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int wxCRT_FscanfW(FILE *stream, const wchar_t *format, ...);
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#else
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#define wxCRT_ScanfW wxVMS_USE_STD wscanf
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#define wxCRT_SscanfW wxVMS_USE_STD swscanf
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#define wxCRT_FscanfW wxVMS_USE_STD fwscanf
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#endif
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#ifdef wxNEED_VSWSCANF
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int wxCRT_VsscanfW(const wchar_t *str, const wchar_t *format, va_list ap);
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#else
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#define wxCRT_VsscanfW wxVMS_USE_STD vswscanf
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#endif
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// ----------------------------------------------------------------------------
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// user-friendly wrappers to CRT functions
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// ----------------------------------------------------------------------------
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#ifdef __WATCOMC__
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// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
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#define wxPrintf wxPrintf_Impl
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#define wxFprintf wxFprintf_Impl
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#define wxSprintf wxSprintf_Impl
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#define wxSnprintf wxSnprintf_Impl
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#endif
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// FIXME-UTF8: remove this
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#if wxUSE_UNICODE
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#define wxCRT_PrintfNative wxCRT_PrintfW
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#define wxCRT_FprintfNative wxCRT_FprintfW
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#else
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#define wxCRT_PrintfNative wxCRT_PrintfA
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#define wxCRT_FprintfNative wxCRT_FprintfA
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#endif
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WX_DEFINE_VARARG_FUNC_SANS_N0(int, wxPrintf, 1, (const wxFormatString&),
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wxCRT_PrintfNative, wxCRT_PrintfA)
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inline int wxPrintf(const wxFormatString& s)
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{
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return wxPrintf("%s", s.InputAsString());
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}
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WX_DEFINE_VARARG_FUNC_SANS_N0(int, wxFprintf, 2, (FILE*, const wxFormatString&),
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wxCRT_FprintfNative, wxCRT_FprintfA)
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inline int wxFprintf(FILE *f, const wxFormatString& s)
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{
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return wxFprintf(f, "%s", s.InputAsString());
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}
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// va_list versions of printf functions simply forward to the respective
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// CRT function; note that they assume that va_list was created using
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// wxArgNormalizer<T>!
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#if wxUSE_UNICODE_UTF8
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#if wxUSE_UTF8_LOCALE_ONLY
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#define WX_VARARG_VFOO_IMPL(args, implW, implA) \
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return implA args
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#else
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#define WX_VARARG_VFOO_IMPL(args, implW, implA) \
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if ( wxLocaleIsUtf8 ) return implA args; \
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else return implW args
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#endif
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#elif wxUSE_UNICODE_WCHAR
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#define WX_VARARG_VFOO_IMPL(args, implW, implA) \
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return implW args
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#else // ANSI
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#define WX_VARARG_VFOO_IMPL(args, implW, implA) \
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return implA args
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#endif
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inline int
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wxVprintf(const wxString& format, va_list ap)
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{
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WX_VARARG_VFOO_IMPL((wxFormatString(format), ap),
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wxCRT_VprintfW, wxCRT_VprintfA);
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}
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inline int
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wxVfprintf(FILE *f, const wxString& format, va_list ap)
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{
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WX_VARARG_VFOO_IMPL((f, wxFormatString(format), ap),
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wxCRT_VfprintfW, wxCRT_VfprintfA);
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}
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#undef WX_VARARG_VFOO_IMPL
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// wxSprintf() and friends have to be implemented in two forms, one for
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// writing to char* buffer and one for writing to wchar_t*:
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#if !wxUSE_UTF8_LOCALE_ONLY
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int WXDLLIMPEXP_BASE wxDoSprintfWchar(char *str, const wxChar *format, ...);
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#endif
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#if wxUSE_UNICODE_UTF8
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int WXDLLIMPEXP_BASE wxDoSprintfUtf8(char *str, const char *format, ...);
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#endif
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WX_DEFINE_VARARG_FUNC(int, wxSprintf, 2, (char*, const wxFormatString&),
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wxDoSprintfWchar, wxDoSprintfUtf8)
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int WXDLLIMPEXP_BASE
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wxVsprintf(char *str, const wxString& format, va_list argptr);
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#if !wxUSE_UTF8_LOCALE_ONLY
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int WXDLLIMPEXP_BASE wxDoSnprintfWchar(char *str, size_t size, const wxChar *format, ...);
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#endif
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#if wxUSE_UNICODE_UTF8
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int WXDLLIMPEXP_BASE wxDoSnprintfUtf8(char *str, size_t size, const char *format, ...);
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#endif
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WX_DEFINE_VARARG_FUNC(int, wxSnprintf, 3, (char*, size_t, const wxFormatString&),
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wxDoSnprintfWchar, wxDoSnprintfUtf8)
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int WXDLLIMPEXP_BASE
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wxVsnprintf(char *str, size_t size, const wxString& format, va_list argptr);
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#if wxUSE_UNICODE
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#if !wxUSE_UTF8_LOCALE_ONLY
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int WXDLLIMPEXP_BASE wxDoSprintfWchar(wchar_t *str, const wxChar *format, ...);
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#endif
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#if wxUSE_UNICODE_UTF8
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int WXDLLIMPEXP_BASE wxDoSprintfUtf8(wchar_t *str, const char *format, ...);
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#endif
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WX_DEFINE_VARARG_FUNC(int, wxSprintf, 2, (wchar_t*, const wxFormatString&),
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wxDoSprintfWchar, wxDoSprintfUtf8)
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int WXDLLIMPEXP_BASE
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wxVsprintf(wchar_t *str, const wxString& format, va_list argptr);
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#if !wxUSE_UTF8_LOCALE_ONLY
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int WXDLLIMPEXP_BASE wxDoSnprintfWchar(wchar_t *str, size_t size, const wxChar *format, ...);
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#endif
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#if wxUSE_UNICODE_UTF8
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int WXDLLIMPEXP_BASE wxDoSnprintfUtf8(wchar_t *str, size_t size, const char *format, ...);
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#endif
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WX_DEFINE_VARARG_FUNC(int, wxSnprintf, 3, (wchar_t*, size_t, const wxFormatString&),
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wxDoSnprintfWchar, wxDoSnprintfUtf8)
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int WXDLLIMPEXP_BASE
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wxVsnprintf(wchar_t *str, size_t size, const wxString& format, va_list argptr);
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#endif // wxUSE_UNICODE
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#ifdef __WATCOMC__
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// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
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//
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// fortunately, OpenWatcom implements __VA_ARGS__, so we can provide macros
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// that cast the format argument to wxString:
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#undef wxPrintf
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#undef wxFprintf
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#undef wxSprintf
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#undef wxSnprintf
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#define wxPrintf(fmt, ...) \
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wxPrintf_Impl(wxFormatString(fmt), __VA_ARGS__)
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#define wxFprintf(f, fmt, ...) \
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wxFprintf_Impl(f, wxFormatString(fmt), __VA_ARGS__)
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#define wxSprintf(s, fmt, ...) \
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wxSprintf_Impl(s, wxFormatString(fmt), __VA_ARGS__)
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#define wxSnprintf(s, n, fmt, ...) \
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wxSnprintf_Impl(s, n, wxFormatString(fmt), __VA_ARGS__)
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#endif // __WATCOMC__
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// We can't use wxArgNormalizer<T> for variadic arguments to wxScanf() etc.
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// because they are writable, so instead of providing friendly template
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// vararg-like functions, we just provide both char* and wchar_t* variants
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// of these functions. The type of output variadic arguments for %s must match
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// the type of 'str' and 'format' arguments.
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//
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// For compatibility with earlier wx versions, we also provide wxSscanf()
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// version with the first argument (input string) wxString; for this version,
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// the type of output string values is determined by the type of format string
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// only.
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#define _WX_SCANFUNC_EXTRACT_ARGS_1(x) x
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#define _WX_SCANFUNC_EXTRACT_ARGS_2(x,y) x, y
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#define _WX_SCANFUNC_EXTRACT_ARGS(N, args) _WX_SCANFUNC_EXTRACT_ARGS_##N args
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#define _WX_VARARG_PASS_WRITABLE(i) a##i
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#define _WX_DEFINE_SCANFUNC(N, dummy1, name, impl, passfixed, numfixed, fixed)\
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template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \
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int name(_WX_SCANFUNC_EXTRACT_ARGS(numfixed, fixed), \
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_WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \
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{ \
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return impl(_WX_SCANFUNC_EXTRACT_ARGS(numfixed, passfixed), \
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_WX_VARARG_JOIN(N, _WX_VARARG_PASS_WRITABLE)); \
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}
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#define WX_DEFINE_SCANFUNC(name, numfixed, fixed, impl, passfixed) \
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_WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \
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_WX_DEFINE_SCANFUNC, \
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dummy1, name, impl, passfixed, numfixed, fixed)
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// this is needed to normalize the format string, see src/common/strvararg.cpp
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// for more details
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#ifdef __WINDOWS__
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#define wxScanfConvertFormatW(fmt) fmt
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#else
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const wxScopedWCharBuffer
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WXDLLIMPEXP_BASE wxScanfConvertFormatW(const wchar_t *format);
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#endif
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WX_DEFINE_SCANFUNC(wxScanf, 1, (const char *format),
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wxCRT_ScanfA, (format))
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WX_DEFINE_SCANFUNC(wxScanf, 1, (const wchar_t *format),
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wxCRT_ScanfW, (wxScanfConvertFormatW(format)))
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WX_DEFINE_SCANFUNC(wxFscanf, 2, (FILE *stream, const char *format),
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wxCRT_FscanfA, (stream, format))
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WX_DEFINE_SCANFUNC(wxFscanf, 2, (FILE *stream, const wchar_t *format),
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wxCRT_FscanfW, (stream, wxScanfConvertFormatW(format)))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const char *str, const char *format),
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wxCRT_SscanfA, (str, format))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wchar_t *str, const wchar_t *format),
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wxCRT_SscanfW, (str, wxScanfConvertFormatW(format)))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxScopedCharBuffer& str, const char *format),
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wxCRT_SscanfA, (str.data(), format))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxScopedWCharBuffer& str, const wchar_t *format),
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wxCRT_SscanfW, (str.data(), wxScanfConvertFormatW(format)))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxString& str, const char *format),
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wxCRT_SscanfA, (str.mb_str(), format))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxString& str, const wchar_t *format),
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wxCRT_SscanfW, (str.wc_str(), wxScanfConvertFormatW(format)))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxCStrData& str, const char *format),
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wxCRT_SscanfA, (str.AsCharBuf(), format))
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WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxCStrData& str, const wchar_t *format),
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wxCRT_SscanfW, (str.AsWCharBuf(), wxScanfConvertFormatW(format)))
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// Visual C++ doesn't provide vsscanf()
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#ifndef __VISUALC___
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int WXDLLIMPEXP_BASE wxVsscanf(const char *str, const char *format, va_list ap);
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int WXDLLIMPEXP_BASE wxVsscanf(const wchar_t *str, const wchar_t *format, va_list ap);
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int WXDLLIMPEXP_BASE wxVsscanf(const wxScopedCharBuffer& str, const char *format, va_list ap);
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int WXDLLIMPEXP_BASE wxVsscanf(const wxScopedWCharBuffer& str, const wchar_t *format, va_list ap);
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int WXDLLIMPEXP_BASE wxVsscanf(const wxString& str, const char *format, va_list ap);
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int WXDLLIMPEXP_BASE wxVsscanf(const wxString& str, const wchar_t *format, va_list ap);
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int WXDLLIMPEXP_BASE wxVsscanf(const wxCStrData& str, const char *format, va_list ap);
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int WXDLLIMPEXP_BASE wxVsscanf(const wxCStrData& str, const wchar_t *format, va_list ap);
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#endif // !__VISUALC__
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#endif /* _WX_WXCRTVARARG_H_ */
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