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| author | kwolekr <kwolekr@minetest.net> | 2015-10-27 22:27:32 -0400 |
|---|---|---|
| committer | kwolekr <kwolekr@minetest.net> | 2015-10-27 22:27:32 -0400 |
| commit | 688556a5d1910ead2cf06a87af6908110fa9d035 (patch) | |
| tree | fb0fc91212847ca73b9ec83162f5f5c075bcb314 /src/basicmacros.h | |
| parent | c56d7fe0eba7905b0a63c4a1cfe909988653c23d (diff) | |
| download | minetest-688556a5d1910ead2cf06a87af6908110fa9d035.tar.gz minetest-688556a5d1910ead2cf06a87af6908110fa9d035.tar.bz2 minetest-688556a5d1910ead2cf06a87af6908110fa9d035.zip | |
Add STATIC_ASSERT() macro and use it
Diffstat (limited to 'src/basicmacros.h')
| -rw-r--r-- | src/basicmacros.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/basicmacros.h b/src/basicmacros.h index cebf06043..2a30a31d2 100644 --- a/src/basicmacros.h +++ b/src/basicmacros.h @@ -38,4 +38,9 @@ with this program; if not, write to the Free Software Foundation, Inc., C(const C &); \ C &operator=(const C &) +// Fail compilation if condition expr is not met. +// Note that 'msg' must follow the format of a valid identifier, e.g. +// STATIC_ASSERT(sizeof(foobar_t) == 40), foobar_t_is_wrong_size); +#define STATIC_ASSERT(expr, msg) typedef char msg[!!(expr) * 2 - 1] + #endif |