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author | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
commit | 28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch) | |
tree | 15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/generic/strcasecmp.c | |
download | glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.gz |
initial import
Diffstat (limited to 'sysdeps/generic/strcasecmp.c')
-rw-r--r-- | sysdeps/generic/strcasecmp.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/generic/strcasecmp.c b/sysdeps/generic/strcasecmp.c new file mode 100644 index 0000000000..7ccfe5c0c5 --- /dev/null +++ b/sysdeps/generic/strcasecmp.c @@ -0,0 +1,46 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <string.h> +#include <ctype.h> + +/* Compare S1 and S2, ignoring case, returning less than, equal to or + greater than zero if S1 is lexiographically less than, + equal to or greater than S2. */ +int +DEFUN(strcasecmp, (s1, s2), CONST char *s1 AND CONST char *s2) +{ + register CONST unsigned char *p1 = (CONST unsigned char *) s1; + register CONST unsigned char *p2 = (CONST unsigned char *) s2; + unsigned char c1, c2; + + if (p1 == p2) + return 0; + + do + { + c1 = tolower (*p1++); + c2 = tolower (*p2++); + if (c1 == '\0') + break; + } + while (c1 == c2); + + return c1 - c2; +} |