/* A C macro for declaring that specific function parameters are not used. Copyright (C) 2008-2021 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 . */ /* _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 # define _GL_UNUSED_PARAMETER _GL_ATTRIBUTE_MAYBE_UNUSED #endif