diff options
Diffstat (limited to 'vendor/gmp-6.3.0/printf/sprintffuns.c')
-rw-r--r-- | vendor/gmp-6.3.0/printf/sprintffuns.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/vendor/gmp-6.3.0/printf/sprintffuns.c b/vendor/gmp-6.3.0/printf/sprintffuns.c new file mode 100644 index 0000000..6781f25 --- /dev/null +++ b/vendor/gmp-6.3.0/printf/sprintffuns.c @@ -0,0 +1,94 @@ +/* __gmp_sprintf_funs -- support for gmp_sprintf and gmp_vsprintf. + + 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 either: + + * 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. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +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 General Public License +for more details. + +You should have received copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "gmp-impl.h" + + +/* The data parameter "bufp" points to a "char *buf" which is the next + character to be written, having started as the destination from the + application. This is then increased each time output is produced. */ + + +/* If vsprintf returns -1 then pass it upwards. It doesn't matter that + "*bufp" is ruined in this case, since gmp_doprint will bail out + immediately anyway. */ +static int +gmp_sprintf_format (char **bufp, const char *fmt, va_list ap) +{ + char *buf = *bufp; + int ret; + vsprintf (buf, fmt, ap); + ret = strlen (buf); + *bufp = buf + ret; + return ret; +} + +static int +gmp_sprintf_memory (char **bufp, const char *str, size_t len) +{ + char *buf = *bufp; + *bufp = buf + len; + memcpy (buf, str, len); + return len; +} + +static int +gmp_sprintf_reps (char **bufp, int c, int reps) +{ + char *buf = *bufp; + ASSERT (reps >= 0); + *bufp = buf + reps; + memset (buf, c, reps); + return reps; +} + +static int +gmp_sprintf_final (char **bufp) +{ + char *buf = *bufp; + *buf = '\0'; + return 0; +} + +const struct doprnt_funs_t __gmp_sprintf_funs = { + (doprnt_format_t) gmp_sprintf_format, + (doprnt_memory_t) gmp_sprintf_memory, + (doprnt_reps_t) gmp_sprintf_reps, + (doprnt_final_t) gmp_sprintf_final +}; |