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sprintf.c revision 1.1 
      1 /* gmp_sprintf -- formatted output to an unrestricted string.
      2 
      3 Copyright 2001 Free Software Foundation, Inc.
      4 
      5 This file is part of the GNU MP Library.
      6 
      7 The GNU MP Library is free software; you can redistribute it and/or modify
      8 it under the terms of the GNU Lesser General Public License as published by
      9 the Free Software Foundation; either version 3 of the License, or (at your
     10 option) any later version.
     11 
     12 The GNU MP Library is distributed in the hope that it will be useful, but
     13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     14 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
     15 License for more details.
     16 
     17 You should have received a copy of the GNU Lesser General Public License
     18 along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
     19 
     20 #include "config.h"
     21 
     22 #if HAVE_STDARG
     23 #include <stdarg.h>
     24 #else
     25 #include <varargs.h>
     26 #endif
     27 
     28 #include <string.h>    /* for strlen */
     29 
     30 #include "gmp.h"
     31 #include "gmp-impl.h"
     32 
     33 
     34 int
     35 #if HAVE_STDARG
     36 gmp_sprintf (char *buf, const char *fmt, ...)
     37 #else
     38 gmp_sprintf (va_alist)
     39      va_dcl
     40 #endif
     41 {
     42 #if WANT_ASSERT
     43   int      fmtlen = strlen(fmt);
     44 #endif
     45   va_list  ap;
     46   int      ret;
     47 
     48 #if HAVE_STDARG
     49   va_start (ap, fmt);
     50 #else
     51   char       *buf;
     52   const char *fmt;
     53   va_start (ap);
     54   buf = va_arg (ap, char *);
     55   fmt = va_arg (ap, const char *);
     56 #endif
     57 
     58   ret = __gmp_doprnt (&__gmp_sprintf_funs, &buf, fmt, ap);
     59   va_end (ap);
     60 
     61   ASSERT (! MEM_OVERLAP_P (buf, strlen(buf)+1, fmt, fmtlen+1));
     62 
     63   return ret;
     64 }
     65