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gnulib/build-aux/snippet/unused-parameter.h
Bruno Haible 620ece7758 Rename module 'unused-parameter' to 'snippet/unused-parameter'.
* modules/snippet/unused-parameter: Renamed from
modules/unused-parameter.
(Files, Makefile.am): Update.
* build-aux/snippet/unused-parameter.h: Renamed from
build-aux/unused-parameter.h.
* modules/selinux-h (Depends-on): Update.
* modules/unistr/base (Depends-on): Update.
* MODULES.html.sh (Core language properties): Update.
2011-07-12 11:58:49 +02:00

37 lines
1.6 KiB
C

/* A C macro for declaring that specific function parameters are not used.
Copyright (C) 2008-2011 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 <http://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