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e738b8cbe6
this reverts commit 2c1f8fd5da. without
the _Noreturn attribute, the compiler cannot use asserts to perform
reachability/range analysis. this leads to missed optimizations and
spurious warnings.
the original backtrace problem that prompted the removal of _Noreturn
was not clearly documented at the time, but it seems to happen only
when libc was built without -g, which also breaks many other
backtracing cases.
24 lines
428 B
C
24 lines
428 B
C
#include <features.h>
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#undef assert
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#ifdef NDEBUG
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#define assert(x) (void)0
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#else
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#define assert(x) ((void)((x) || (__assert_fail(#x, __FILE__, __LINE__, __func__),0)))
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#endif
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#if __STDC_VERSION__ >= 201112L && !defined(__cplusplus)
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#define static_assert _Static_assert
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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_Noreturn void __assert_fail (const char *, const char *, int, const char *);
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#ifdef __cplusplus
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}
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#endif
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