Mercurial > gnulib
view lib/mbsncasecmp.c @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* Case-insensitive string comparison function. Copyright (C) 1998-1999, 2005-2013 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2005, based on earlier glibc code. This program is free software: you can redistribute it and/or modify it under the terms of the GNU 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include <string.h> #include <ctype.h> #include <limits.h> #include "mbuiter.h" #define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch)) /* Compare the initial segment of the character string S1 consisting of at most N characters with the initial segment of the character string S2 consisting of at most N characters, ignoring case, returning less than, equal to or greater than zero if the initial segment of S1 is lexicographically less than, equal to or greater than the initial segment of S2. Note: This function may, in multibyte locales, return 0 for initial segments of different lengths! */ int mbsncasecmp (const char *s1, const char *s2, size_t n) { if (s1 == s2 || n == 0) return 0; /* Be careful not to look at the entire extent of s1 or s2 until needed. This is useful because when two strings differ, the difference is most often already in the very few first characters. */ if (MB_CUR_MAX > 1) { mbui_iterator_t iter1; mbui_iterator_t iter2; mbui_init (iter1, s1); mbui_init (iter2, s2); while (mbui_avail (iter1) && mbui_avail (iter2)) { int cmp = mb_casecmp (mbui_cur (iter1), mbui_cur (iter2)); if (cmp != 0) return cmp; if (--n == 0) return 0; mbui_advance (iter1); mbui_advance (iter2); } if (mbui_avail (iter1)) /* s2 terminated before s1 and n. */ return 1; if (mbui_avail (iter2)) /* s1 terminated before s2 and n. */ return -1; return 0; } else { const unsigned char *p1 = (const unsigned char *) s1; const unsigned char *p2 = (const unsigned char *) s2; unsigned char c1, c2; for (; ; p1++, p2++) { c1 = TOLOWER (*p1); c2 = TOLOWER (*p2); if (--n == 0 || c1 == '\0' || c1 != c2) break; } if (UCHAR_MAX <= INT_MAX) return c1 - c2; else /* On machines where 'char' and 'int' are types of the same size, the difference of two 'unsigned char' values - including the sign bit - doesn't fit in an 'int'. */ return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); } }