Mercurial > gnulib
view lib/assure.h @ 37520:b46e093d1df7
assure: new module
This works better than 'assert' when compiling with -DNDEBUG,
as it avoids some compiler diagnostics in that case.
Reported by Norihiro Tanaka in:
http://lists.gnu.org/archive/html/bug-gnulib/2014-12/msg00215.html
* MODULES.html.sh (func_all_modules): Add 'assure'.
* lib/assure.h, modules/assure: New files.
* lib/chdir-long.c, lib/cycle-check.c, lib/fchdir.c, lib/fts.c:
* lib/poll.c, lib/savewd.c, lib/utimens.c, lib/xstrtol.c:
Prefer 'assure' to 'assert'.
* modules/chdir-long, modules/cycle-check, modules/fchdir:
* modules/poll, modules/savewd, modules/utimens, modules/xstrtol:
Depend on 'assure'.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sat, 20 Dec 2014 13:00:21 -0800 |
parents | |
children | ab58d4870664 |
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/* Run-time assert-like macros. Copyright (C) 2014 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 Paul Eggert. */ #ifndef _GL_ASSURE_H #define _GL_ASSURE_H #include <assert.h> /* Check E's value at runtime, and report an error and abort if not. However, do nothng if NDEBUG is defined. Unlike standard 'assert', this macro always compiles E even when NDEBUG is defined, so as to catch typos and avoid some GCC warnings. */ #ifdef NDEBUG # define assure(E) ((void) (0 && (E))) #else # define assure(E) assert (E) #endif #endif