From fa095a4504cbe668e4244547e2c141597bea4ecf Mon Sep 17 00:00:00 2001 From: Andreas Rottmann Date: Mon, 14 Sep 2009 12:32:44 +0200 Subject: Imported Upstream version 0.9.1 --- lib/memxfrm.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 lib/memxfrm.h (limited to 'lib/memxfrm.h') diff --git a/lib/memxfrm.h b/lib/memxfrm.h new file mode 100644 index 00000000..d78900a7 --- /dev/null +++ b/lib/memxfrm.h @@ -0,0 +1,48 @@ +/* Locale dependent memory area transformation for comparison. + Copyright (C) 2009 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 . */ + +#ifndef MEMXFRM_H +#define MEMXFRM_H + +#include + +#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 + memxfrm(S1,N1) and memxfrm(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 * memxfrm (char *s, size_t n, char *resultbuf, size_t *lengthp); + + +#ifdef __cplusplus +} +#endif + +#endif /* MEMXFRM_H */ -- cgit v1.2.3