Mercurial > gnulib
annotate tests/signature.h @ 40057:b06060465f09
maint: Run 'make update-copyright'
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Tue, 01 Jan 2019 00:25:11 +0100 |
| parents | 10eb9086bea0 |
| children |
| rev | line source |
|---|---|
| 12489 | 1 /* Macro for checking that a function declaration is compliant. |
|
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19484
diff
changeset
|
2 Copyright (C) 2009-2019 Free Software Foundation, Inc. |
| 12489 | 3 |
| 4 This program is free software: you can redistribute it and/or modify | |
| 5 it under the terms of the GNU General Public License as published by | |
| 6 the Free Software Foundation; either version 3 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 | |
| 12 GNU General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU General Public License | |
| 19190 | 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| 12489 | 16 |
| 17 #ifndef SIGNATURE_CHECK | |
| 18 | |
| 19 /* Check that the function FN takes the specified arguments ARGS with | |
| 20 a return type of RET. This header is designed to be included after | |
| 21 <config.h> and the one system header that is supposed to contain | |
| 22 the function being checked, but prior to any other system headers | |
| 23 that are necessary for the unit test. Therefore, this file does | |
| 24 not include any system headers, nor reference anything outside of | |
| 25 the macro arguments. For an example, if foo.h should provide: | |
| 26 | |
| 27 extern int foo (char, float); | |
| 28 | |
| 29 then the unit test named test-foo.c would start out with: | |
| 30 | |
| 31 #include <config.h> | |
| 32 #include <foo.h> | |
| 33 #include "signature.h" | |
| 34 SIGNATURE_CHECK (foo, int, (char, float)); | |
| 35 #include <other.h> | |
| 36 ... | |
| 37 */ | |
| 38 # define SIGNATURE_CHECK(fn, ret, args) \ | |
| 39 SIGNATURE_CHECK1 (fn, ret, args, __LINE__) | |
| 40 | |
| 41 /* Necessary to allow multiple SIGNATURE_CHECK lines in a unit test. | |
| 42 Note that the checks must not occupy the same line. */ | |
| 43 # define SIGNATURE_CHECK1(fn, ret, args, id) \ | |
| 44 SIGNATURE_CHECK2 (fn, ret, args, id) /* macroexpand line */ | |
| 45 # define SIGNATURE_CHECK2(fn, ret, args, id) \ | |
| 46 static ret (* _GL_UNUSED signature_check ## id) args = fn | |
| 47 | |
| 48 #endif /* SIGNATURE_CHECK */ |