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authorChris Robinson <[email protected]>2014-11-07 19:40:11 -0800
committerChris Robinson <[email protected]>2014-11-07 19:43:14 -0800
commit907cd3dd01098c5b7437173b5f800ecdf03946bb (patch)
treee88e0f4d52baeae38693b22e9fe94541511ec9e6 /include/static_assert.h
parentb34a374fa7801b64fddcfd1fa57188fb5f5303a8 (diff)
Add a workaround for compilers without __COUNTER__
This can make GCC pretty noisey, complaining "declaration does not declare anything" for each static_assert, but it should still function on such older compilers.
Diffstat (limited to 'include/static_assert.h')
-rw-r--r--include/static_assert.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/static_assert.h b/include/static_assert.h
index 65283cf0..12a095a3 100644
--- a/include/static_assert.h
+++ b/include/static_assert.h
@@ -7,10 +7,12 @@
#ifndef static_assert
#ifdef HAVE_C11_STATIC_ASSERT
#define static_assert _Static_assert
-#else
+#elif defined(__COUNTER__)
#define CTASTR2(_pre,_post) _pre##_post
#define CTASTR(_pre,_post) CTASTR2(_pre,_post)
#define static_assert(_cond, _msg) typedef struct { int CTASTR(static_assert_failed_at_line_,__LINE__) : !!(_cond); } CTASTR(static_assertion_,__COUNTER__)
+#else
+#define static_assert(_cond, _msg) struct { int CTASTR(static_assert_failed_at_line_,__LINE__) : !!(_cond); }
#endif
#endif