69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
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/* sprintf.c
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*
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* $Id$
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*
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* Provides an implementation of the "sprintf" function, conforming
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* generally to C99 and SUSv3/POSIX specifications, with extensions
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* to support Microsoft's non-standard format specifications. This
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* is included in libmingwex.a, whence it may replace the Microsoft
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* function of the same name.
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*
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* Written by Keith Marshall <keithmarshall@users.sourceforge.net>
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*
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* This implementation of "sprintf" will normally be invoked by calling
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* "__mingw_sprintf()" in preference to a direct reference to "sprintf()"
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* itself; this leaves the MSVCRT implementation as the default, which
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* will be deployed when user code invokes "sprint()". Users who then
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* wish to use this implementation may either call "__mingw_sprintf()"
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* directly, or may use conditional preprocessor defines, to redirect
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* references to "sprintf()" to "__mingw_sprintf()".
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*
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* Compiling this module with "-D INSTALL_AS_DEFAULT" will change this
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* recommended convention, such that references to "sprintf()" in user
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* code will ALWAYS be redirected to "__mingw_sprintf()"; if this option
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* is adopted, then users wishing to use the MSVCRT implementation of
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* "sprintf()" will be forced to use a "back-door" mechanism to do so.
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* Such a "back-door" mechanism is provided with MinGW, allowing the
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* MSVCRT implementation to be called as "__msvcrt_sprintf()"; however,
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* since users may not expect this behaviour, a standard libmingwex.a
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* installation does not employ this option.
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*
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*
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* This is free software. You may redistribute and/or modify it as you
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* see fit, without restriction of copyright.
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*
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* This software is provided "as is", in the hope that it may be useful,
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* but WITHOUT WARRANTY OF ANY KIND, not even any implied warranty of
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* MERCHANTABILITY, nor of FITNESS FOR ANY PARTICULAR PURPOSE. At no
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* time will the author accept any form of liability for any damages,
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* however caused, resulting from the use of this software.
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*
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include "pformat.h"
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int __cdecl __sprintf (char *, const char *, ...) __MINGW_NOTHROW;
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#ifdef INSTALL_AS_DEFAULT
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/*
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* This implementation is to become the default for calls to sprintf();
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* establish the alias to make this so, forcing users to use the back-door
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* __msvcrt_sprintf() reference, to access the original MSVCRT function.
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*/
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int __cdecl __mingw_alias(sprintf) (char *, const char *, ...) __MINGW_NOTHROW;
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#endif
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int __cdecl __sprintf( char *buf, const char *fmt, ... )
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{
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register int retval;
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va_list argv; va_start( argv, fmt );
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buf[retval = __pformat( PFORMAT_NOLIMIT, buf, 0, fmt, argv )] = '\0';
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va_end( argv );
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return retval;
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}
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/* $RCSfile$Revision$: end of file */
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