1 /* __gmp_asprintf_memory etc -- formatted output to allocated space. 2 3 Copyright 2001, 2002 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 21 /* These routines are in a separate file so that the mpz_t, mpq_t and mpf_t 22 operator<< routines can avoid dragging vsnprintf into the link (via 23 __gmp_asprintf_format). */ 24 25 #include "config.h" 26 27 #if HAVE_STDARG 28 #include <stdarg.h> 29 #else 30 #include <varargs.h> 31 #endif 32 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 37 #include "gmp.h" 38 #include "gmp-impl.h" 39 40 41 int 42 __gmp_asprintf_memory (struct gmp_asprintf_t *d, const char *str, size_t len) 43 { 44 GMP_ASPRINTF_T_NEED (d, len); 45 memcpy (d->buf + d->size, str, len); 46 d->size += len; 47 return len; 48 } 49 50 int 51 __gmp_asprintf_reps (struct gmp_asprintf_t *d, int c, int reps) 52 { 53 GMP_ASPRINTF_T_NEED (d, reps); 54 memset (d->buf + d->size, c, reps); 55 d->size += reps; 56 return reps; 57 } 58 59 int 60 __gmp_asprintf_final (struct gmp_asprintf_t *d) 61 { 62 char *buf = d->buf; 63 ASSERT (d->alloc >= d->size + 1); 64 buf[d->size] = '\0'; 65 __GMP_REALLOCATE_FUNC_MAYBE_TYPE (buf, d->alloc, d->size+1, char); 66 *d->result = buf; 67 return 0; 68 } 69