Mercurial > gnulib
view lib/wcsxfrm-impl.h @ 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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/* Transform wide string for comparison using the current locale. Copyright (C) 2011-2013 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2011. 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/>. */ size_t wcsxfrm (wchar_t *s1, const wchar_t *s2, size_t n) { char mbbuf2[1024]; char *mbs2; { int saved_errno = errno; size_t result; /* Convert s2 to a multibyte string, trying to avoid malloc(). */ { size_t ret; ret = wcstombs (mbbuf2, s2, sizeof (mbbuf2)); if (ret == (size_t)-1) goto failed; if (ret < sizeof (mbbuf2)) mbs2 = mbbuf2; else { size_t need = wcstombs (NULL, s2, 0); if (need == (size_t)-1) goto failed; mbs2 = (char *) malloc (need + 1); if (mbs2 == NULL) goto out_of_memory; ret = wcstombs (mbs2, s2, need + 1); if (ret != need) abort (); } } /* Transform the multibyte string. */ errno = 0; result = strxfrm ((char *)s1, mbs2, n); if (errno != 0) { /* An error occurred. */ if (mbs2 != mbbuf2) { saved_errno = errno; free (mbs2); errno = saved_errno; } return 0; } if (result < n) { /* Convert the result by mapping char[] -> wchar_t[]. Since strcmp() compares the elements as 'unsigned char' values, whereas wcscmp() compares the elements as 'wchar_t' values, we need to map 1 'unsigned char' to 1 'wchar_t'. (We could also map 2 consecutive 'unsigned char' values to 1 'wchar_t' value, but this is not needed. */ wchar_t *wcp = s1 + n; char *cp = (char *)s1 + n; while (wcp > s1) *--wcp = (wchar_t) (unsigned char) *--cp; } if (mbs2 != mbbuf2) free (mbs2); /* No error. */ errno = saved_errno; return result; } out_of_memory: errno = ENOMEM; return 0; failed: errno = EILSEQ; return 0; }