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author | Manuel A. Fernandez Montecelo <manuel.montezelo@gmail.com> | 2016-05-26 16:48:39 +0100 |
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committer | Manuel A. Fernandez Montecelo <manuel.montezelo@gmail.com> | 2016-05-26 16:48:39 +0100 |
commit | 8dfc46115527afe3706e9e4225e9ad019c97d695 (patch) | |
tree | 372d5192b218455834781a0037c57e919a06b488 /build-aux/snippet/unused-parameter.h | |
parent | 2291cf138eb72ad38d8c59b8b6f762875c8c4ff2 (diff) | |
parent | 5f2b09982312c98863eb9a8dfe2c608b81f58259 (diff) |
Merge tag 'upstream/0.9.6'
Upstream version 0.9.6
Diffstat (limited to 'build-aux/snippet/unused-parameter.h')
-rw-r--r-- | build-aux/snippet/unused-parameter.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/build-aux/snippet/unused-parameter.h b/build-aux/snippet/unused-parameter.h new file mode 100644 index 0000000..f507eb7 --- /dev/null +++ b/build-aux/snippet/unused-parameter.h @@ -0,0 +1,36 @@ +/* A C macro for declaring that specific function parameters are not used. + Copyright (C) 2008-2015 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 <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 |