1 /* gmp_snprintf -- formatted output to an fixed size buffer. 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_snprintf (char *buf, size_t size, const char *fmt, ...) 37 #else 38 gmp_snprintf (va_alist) 39 va_dcl 40 #endif 41 { 42 struct gmp_snprintf_t d; 43 va_list ap; 44 int ret; 45 46 #if HAVE_STDARG 47 va_start (ap, fmt); 48 d.buf = buf; 49 d.size = size; 50 51 #else 52 const char *fmt; 53 va_start (ap); 54 d.buf = va_arg (ap, char *); 55 d.size = va_arg (ap, size_t); 56 fmt = va_arg (ap, const char *); 57 #endif 58 59 ASSERT (! MEM_OVERLAP_P (buf, size, fmt, strlen(fmt)+1)); 60 61 ret = __gmp_doprnt (&__gmp_snprintf_funs, &d, fmt, ap); 62 va_end (ap); 63 return ret; 64 } 65