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author | Paul Eggert <eggert@cs.ucla.edu> | 2017-03-14 13:23:25 -0700 |
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committer | Paul Eggert <eggert@cs.ucla.edu> | 2017-03-14 14:31:30 -0700 |
commit | 47cbe8bab23d3d7d064334e6ed34975a1e503227 (patch) | |
tree | aa075f57374058c3c03c870789c4bde15eceb1f2 /lib/unused-parameter.h | |
parent | f30205c5d59bab2c035165158e7d5d65b07b8363 (diff) | |
download | gnulib-47cbe8bab23d3d7d064334e6ed34975a1e503227.tar.gz |
snippets: move unadjusted snippet sources to lib
Problem reported by Michal Privoznik in:
http://lists.gnu.org/archive/html/bug-gnulib/2017-03/msg00039.html
* lib/_Noreturn.h: Rename from build-aux/snippet/_Noreturn.h.
* lib/arg-nonnull.h: Rename from build-aux/snippet/arg-nonnull.h.
* lib/c++defs.h: Rename from build-aux/snippet/c++defs.h.
* lib/unused-parameter.h: Rename from
build-aux/snippet/unused-parameter.h.
* lib/warn-on-use.h: Rename from build-aux/snippet/warn-on-use.h.
* modules/snippet/_Noreturn (Files:, _NORETURN_H):
* modules/snippet/arg-nonnull (Files:, ARG_NONNULL_H):
* modules/snippet/c++defs (Files:, CXXDEFS_H):
* modules/snippet/unused-parameter (Files:, UNUSED_PARAMETER_H):
* modules/snippet/warn-on-use (Files: WARN_ON_USE_H):
Adjust to file renamings.
Diffstat (limited to 'lib/unused-parameter.h')
-rw-r--r-- | lib/unused-parameter.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/unused-parameter.h b/lib/unused-parameter.h new file mode 100644 index 0000000000..eece864dc9 --- /dev/null +++ b/lib/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 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 |