From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/generic/strncase.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 sysdeps/generic/strncase.c (limited to 'sysdeps/generic/strncase.c') diff --git a/sysdeps/generic/strncase.c b/sysdeps/generic/strncase.c new file mode 100644 index 0000000000..f589937fac --- /dev/null +++ b/sysdeps/generic/strncase.c @@ -0,0 +1,47 @@ +/* Copyright (C) 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 +#include +#include + +/* Compare no more than N characters of S1 and S2, + ignoring case, returning less than, equal to or + greater than zero if S1 is lexicographically less + than, equal to or greater than S2. */ +int +DEFUN(strncasecmp, (s1, s2, n), + CONST char *s1 AND CONST char *s2 AND size_t n) +{ + 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 || n == 0) + return 0; + + do + { + c1 = tolower (*p1++); + c2 = tolower (*p2++); + if (c1 == '\0' || c1 != c2) + return c1 - c2; + } while (--n > 0); + + return c1 - c2; +} -- cgit 1.4.1