summaryrefslogtreecommitdiff
path: root/lib/amemxfrm.h
diff options
context:
space:
mode:
authorManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-27 14:35:16 +0100
committerManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-27 14:35:16 +0100
commit3590c846d4c2febbc05b4ad6b14a06edc549e453 (patch)
treee5d38581c2f36e1cca02efedd2d85044d77f76f9 /lib/amemxfrm.h
parenta9a31b1de5776a3b08a82101a4fa711294f0dd1d (diff)
Imported Upstream version 0.9.6+really0.9.6upstream/0.9.6+really0.9.6
Diffstat (limited to 'lib/amemxfrm.h')
-rw-r--r--lib/amemxfrm.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/amemxfrm.h b/lib/amemxfrm.h
new file mode 100644
index 00000000..21802cea
--- /dev/null
+++ b/lib/amemxfrm.h
@@ -0,0 +1,48 @@
+/* Locale dependent memory area transformation for comparison.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
+
+ This program 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.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef AMEMXFRM_H
+#define AMEMXFRM_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Generalization of strxfrm() to strings with embedded NUL bytes. */
+
+/* Transform the memory area [S..S+N-1] to a memory area, in such a way that
+ comparing (S1,N1) and (S2,N2) with memcoll() is equivalent to comparing
+ amemxfrm(S1,N1) and amemxfrm(S2,N2) with memcmp2().
+ The byte S[N] may be temporarily overwritten by this function, but will be
+ restored before this function returns.
+ The result of this function depends on the LC_COLLATE category of the
+ current locale.
+ If successful: If resultbuf is not NULL and the result fits into *lengthp
+ bytes, it is put in resultbuf, and resultbuf is returned. Otherwise, a
+ freshly allocated string is returned. In both cases, *lengthp is set to the
+ length of the returned string.
+ Upon failure, return NULL, with errno set. */
+extern char * amemxfrm (char *s, size_t n, char *resultbuf, size_t *lengthp);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AMEMXFRM_H */