Mercurial > hg > octave-nkf > gnulib-hg
annotate build-aux/unused-parameter.h @ 13415:a884db63982b
Avoid some more warnings from "gcc -Wwrite-strings".
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Fri, 11 Jun 2010 21:17:11 +0200 |
| parents | c2cbabec01dd |
| children | 97fc9a21a8fb |
| rev | line source |
|---|---|
| 12500 | 1 /* A C macro for declaring that specific function parameters are not used. |
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12559
c2cbabec01dd
update nearly all FSF copyright year lists to include 2010
Jim Meyering <meyering@redhat.com>
parents:
12500
diff
changeset
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2 Copyright (C) 2008-2010 Free Software Foundation, Inc. |
| 12500 | 3 |
| 4 This program is free software: you can redistribute it and/or modify it | |
| 5 under the terms of the GNU Lesser General Public License as published | |
| 6 by the Free Software Foundation; either version 2 of the License, or | |
| 7 (at your option) any later version. | |
| 8 | |
| 9 This program is distributed in the hope that it will be useful, | |
| 10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 Lesser General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU Lesser General Public License | |
| 15 along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 16 | |
| 17 /* _GL_UNUSED_PARAMETER is a marker that can be appended to function parameter | |
| 18 declarations for parameters that are not used. This helps to reduce | |
| 19 warnings, such as from GCC -Wunused-parameter. The syntax is as follows: | |
| 20 type param _GL_UNUSED_PARAMETER | |
| 21 or more generally | |
| 22 param_decl _GL_UNUSED_PARAMETER | |
| 23 For example: | |
| 24 int param _GL_UNUSED_PARAMETER | |
| 25 int *(*param)(void) _GL_UNUSED_PARAMETER | |
| 26 Other possible, but obscure and discouraged syntaxes: | |
| 27 int _GL_UNUSED_PARAMETER *(*param)(void) | |
| 28 _GL_UNUSED_PARAMETER int *(*param)(void) | |
| 29 */ | |
| 30 #ifndef _GL_UNUSED_PARAMETER | |
| 31 # if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) | |
| 32 # define _GL_UNUSED_PARAMETER __attribute__ ((__unused__)) | |
| 33 # else | |
| 34 # define _GL_UNUSED_PARAMETER | |
| 35 # endif | |
| 36 #endif |