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authorPedro Alvarez <pedro.alvarez@codethink.co.uk>2014-12-22 00:55:04 +0000
committerPedro Alvarez <pedro.alvarez@codethink.co.uk>2014-12-22 00:56:42 +0000
commit54eea31d0053620bab65153ab39d61e5575aaf1b (patch)
tree5f97c96dffdb6b27df36795689abfb9086011585 /gmp/printf/sprintffuns.c
parentc16297b7cfb0c1708f1d84b5d0f90be0844d07ce (diff)
downloadgcc-tarball-54eea31d0053620bab65153ab39d61e5575aaf1b.tar.gz
Add gmp, mpc and mpfr sourcesbaserock/pedroalvarez/4.9.1
Diffstat (limited to 'gmp/printf/sprintffuns.c')
-rw-r--r--gmp/printf/sprintffuns.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/gmp/printf/sprintffuns.c b/gmp/printf/sprintffuns.c
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+/* __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.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, int c, int reps)
+{
+ 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
+};