asprntffuns.c
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上传日期:2022-08-06
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文件大小:2k
- /* __gmp_asprintf_memory etc -- formatted output to allocated space.
- Copyright 2001, 2002 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/. */
- /* These routines are in a separate file so that the mpz_t, mpq_t and mpf_t
- operator<< routines can avoid dragging vsnprintf into the link (via
- __gmp_asprintf_format). */
- #include "config.h"
- #if HAVE_STDARG
- #include <stdarg.h>
- #else
- #include <varargs.h>
- #endif
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- int
- __gmp_asprintf_memory (struct gmp_asprintf_t *d, const char *str, size_t len)
- {
- GMP_ASPRINTF_T_NEED (d, len);
- memcpy (d->buf + d->size, str, len);
- d->size += len;
- return len;
- }
- int
- __gmp_asprintf_reps (struct gmp_asprintf_t *d, int c, int reps)
- {
- GMP_ASPRINTF_T_NEED (d, reps);
- memset (d->buf + d->size, c, reps);
- d->size += reps;
- return reps;
- }
- int
- __gmp_asprintf_final (struct gmp_asprintf_t *d)
- {
- char *buf = d->buf;
- ASSERT (d->alloc >= d->size + 1);
- buf[d->size] = ' ';
- __GMP_REALLOCATE_FUNC_MAYBE_TYPE (buf, d->alloc, d->size+1, char);
- *d->result = buf;
- return 0;
- }