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printffuns.c
Package: gmp-5.0.1.tar.gz [view]
Upload User: qaz666999
Upload Date: 2022-08-06
Package Size: 2570k
Code Size: 2k
Category:
Algorithm
Development Platform:
Unix_Linux
- /* __gmp_fprintf_funs -- support for formatted output to FILEs.
- THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY. THEY'RE ALMOST
- CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
- FUTURE GNU MP RELEASES.
- Copyright 2001 Free Software Foundation, Inc.
- This file is part of the GNU MP Library.
- The GNU MP Library is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 3 of the License, or (at your
- option) any later version.
- The GNU MP Library is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
- #include "config.h"
- #if HAVE_STDARG
- #include <stdarg.h>
- #else
- #include <varargs.h>
- #endif
- #include <stdio.h>
- #include <string.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- /* SunOS 4 stdio.h doesn't provide a prototype for this */
- #if ! HAVE_DECL_VFPRINTF
- int vfprintf __GMP_PROTO ((FILE *, const char *, va_list));
- #endif
- static int
- gmp_fprintf_memory (FILE *fp, const char *str, size_t len)
- {
- return fwrite (str, 1, len, fp);
- }
- /* glibc putc is a function, at least when it's in multi-threaded mode or
- some such, so fwrite chunks instead of making many calls. */
- static int
- gmp_fprintf_reps (FILE *fp, int c, int reps)
- {
- char buf[256];
- int i, piece, ret;
- ASSERT (reps >= 0);
- memset (buf, c, MIN (reps, sizeof (buf)));
- for (i = reps; i > 0; i -= sizeof (buf))
- {
- piece = MIN (i, sizeof (buf));
- ret = fwrite (buf, 1, piece, fp);
- if (ret == -1)
- return ret;
- ASSERT (ret == piece);
- }
- return reps;
- }
- const struct doprnt_funs_t __gmp_fprintf_funs = {
- (doprnt_format_t) vfprintf,
- (doprnt_memory_t) gmp_fprintf_memory,
- (doprnt_reps_t) gmp_fprintf_reps,
- };