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author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2017-12-03 20:50:11 +0100 |
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committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2017-12-03 20:50:11 +0100 |
commit | 4cf52fc0bc3b80c0ef6c58c5db4413ebdafe661c (patch) | |
tree | 676b26b024117cf656080a011e3d17b8fb6889af /tests/unused-parameter.h | |
parent | 1ecbfbb92248e67b564f5b144c4671ccaa86ee2f (diff) | |
parent | 44ff3127b1e57b703c2a73a24f7ab38e4aad8ae4 (diff) |
Merge branch 'release/0.9.8-1'0.9.8-1
Diffstat (limited to 'tests/unused-parameter.h')
-rw-r--r-- | tests/unused-parameter.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/unused-parameter.h b/tests/unused-parameter.h new file mode 100644 index 00000000..8bd04b1f --- /dev/null +++ b/tests/unused-parameter.h @@ -0,0 +1,36 @@ +/* A C macro for declaring that specific function parameters are not used. + Copyright (C) 2008-2017 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 |