Mercurial > gnulib
view lib/unused-parameter.h @ 40183:9301e0f7fe60
libtextstyle: New module.
* m4/libtextstyle.m4: New file.
* modules/libtextstyle: New file.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 10 Feb 2019 12:49:39 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* A C macro for declaring that specific function parameters are not used. Copyright (C) 2008-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* _GL_UNUSED_PARAMETER is a marker that can be appended to function parameter declarations for parameters that are not used. This helps to reduce warnings, such as from GCC -Wunused-parameter. The syntax is as follows: type param _GL_UNUSED_PARAMETER or more generally param_decl _GL_UNUSED_PARAMETER For example: int param _GL_UNUSED_PARAMETER int *(*param)(void) _GL_UNUSED_PARAMETER Other possible, but obscure and discouraged syntaxes: int _GL_UNUSED_PARAMETER *(*param)(void) _GL_UNUSED_PARAMETER int *(*param)(void) */ #ifndef _GL_UNUSED_PARAMETER # if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) # define _GL_UNUSED_PARAMETER __attribute__ ((__unused__)) # else # define _GL_UNUSED_PARAMETER # endif #endif