| /* 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 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 <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 |
