/* vsprintf.c * * $Id: vsprintf.c,v 1.1 2008/08/11 22:41:55 keithmarshall Exp $ * * Provides an implementation of the "vsprintf" function, conforming * generally to C99 and SUSv3/POSIX specifications, with extensions * to support Microsoft's non-standard format specifications. This * is included in libmingwex.a, whence it may replace the Microsoft * function of the same name. * * Written by Keith Marshall * * This implementation of "vsprintf" will normally be invoked by calling * "__mingw_vsprintf()" in preference to a direct reference to "vsprintf()" * itself; this leaves the MSVCRT implementation as the default, which * will be deployed when user code invokes "vsprint()". Users who then * wish to use this implementation may either call "__mingw_vsprintf()" * directly, or may use conditional preprocessor defines, to redirect * references to "vsprintf()" to "__mingw_vsprintf()". * * Compiling this module with "-D INSTALL_AS_DEFAULT" will change this * recommended convention, such that references to "vsprintf()" in user * code will ALWAYS be redirected to "__mingw_vsprintf()"; if this option * is adopted, then users wishing to use the MSVCRT implementation of * "vsprintf()" will be forced to use a "back-door" mechanism to do so. * Such a "back-door" mechanism is provided with MinGW, allowing the * MSVCRT implementation to be called as "__msvcrt_vsprintf()"; however, * since users may not expect this behaviour, a standard libmingwex.a * installation does not employ this option. * * * This is free software. You may redistribute and/or modify it as you * see fit, without restriction of copyright. * * This software is provided "as is", in the hope that it may be useful, * but WITHOUT WARRANTY OF ANY KIND, not even any implied warranty of * MERCHANTABILITY, nor of FITNESS FOR ANY PARTICULAR PURPOSE. At no * time will the author accept any form of liability for any damages, * however caused, resulting from the use of this software. * */ #include #include #include "mingw_pformat.h" int __cdecl __vsprintf (APICHAR *, const APICHAR *, va_list) __MINGW_NOTHROW; int __cdecl __vsprintf(APICHAR *buf, const APICHAR *fmt, va_list argv) { register int retval; buf[retval = __pformat( PFORMAT_NOLIMIT, buf, 0, fmt, argv )] = '\0'; return retval; }