Mercurial > gnulib
view lib/obstack_printf.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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/* Formatted output to obstacks. Copyright (C) 2008-2013 Free Software Foundation, Inc. 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 2, 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 <stdio.h> #include "obstack.h" #include "vasnprintf.h" #include <errno.h> #include <stdarg.h> #include <stdlib.h> /* Grow an obstack with formatted output. Return the number of bytes added to OBS. No trailing nul byte is added, and the object should be closed with obstack_finish before use. Upon memory allocation error, call obstack_alloc_failed_handler. Upon other error, return -1. */ int obstack_printf (struct obstack *obs, const char *format, ...) { va_list args; int result; va_start (args, format); result = obstack_vprintf (obs, format, args); va_end (args); return result; } /* Grow an obstack with formatted output. Return the number of bytes added to OBS. No trailing nul byte is added, and the object should be closed with obstack_finish before use. Upon memory allocation error, call obstack_alloc_failed_handler. Upon other error, return -1. */ int obstack_vprintf (struct obstack *obs, const char *format, va_list args) { /* If we are close to the end of the current obstack chunk, use a stack-allocated buffer and copy, to reduce the likelihood of a small-size malloc. Otherwise, print directly into the obstack. */ enum { CUTOFF = 1024 }; char buf[CUTOFF]; char *base = obstack_next_free (obs); size_t len = obstack_room (obs); char *str; if (len < CUTOFF) { base = buf; len = CUTOFF; } str = vasnprintf (base, &len, format, args); if (!str) { if (errno == ENOMEM) obstack_alloc_failed_handler (); return -1; } if (str == base && str != buf) /* The output was already computed in place, but we need to account for its size. */ obstack_blank_fast (obs, len); else { /* The output exceeded available obstack space or we used buf; copy the resulting string. */ obstack_grow (obs, str, len); if (str != buf) free (str); } return len; }