Mercurial > gnulib
view lib/xstrtod.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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/* error-checking interface to strtod-like functions Copyright (C) 1996, 1999-2000, 2003-2006, 2009-2013 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 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/>. */ /* Written by Jim Meyering. */ #include <config.h> #include "xstrtod.h" #include <errno.h> #include <limits.h> #include <stdio.h> #if LONG # define XSTRTOD xstrtold # define DOUBLE long double #else # define XSTRTOD xstrtod # define DOUBLE double #endif /* An interface to a string-to-floating-point conversion function that encapsulates all the error checking one should usually perform. Like strtod/strtold, but upon successful conversion put the result in *RESULT and return true. Return false and don't modify *RESULT upon any failure. CONVERT specifies the conversion function, e.g., strtod itself. */ bool XSTRTOD (char const *str, char const **ptr, DOUBLE *result, DOUBLE (*convert) (char const *, char **)) { DOUBLE val; char *terminator; bool ok = true; errno = 0; val = convert (str, &terminator); /* Having a non-zero terminator is an error only when PTR is NULL. */ if (terminator == str || (ptr == NULL && *terminator != '\0')) ok = false; else { /* Allow underflow (in which case CONVERT returns zero), but flag overflow as an error. */ if (val != 0 && errno == ERANGE) ok = false; } if (ptr != NULL) *ptr = terminator; *result = val; return ok; }