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Merge pull request #4994 from arnetheduck/nim-check-abi

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add a simple sizeof checker to compare nim & c types
This commit is contained in:
Andreas Rumpf 2016-11-08 14:08:36 +01:00 • committed by GitHub
commit 86b58e83ea
3 changed files with 21 additions and 1 deletions
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4
lib/nimbase.h
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@ -459,3 +459,7 @@ typedef int Nim_and_C_compiler_disagree_on_target_architecture[sizeof(NI) == siz
#elif defined(__FreeBSD__)
# include <sys/types.h>
#endif
/* Compile with -d:checkAbi and a sufficiently C11:ish compiler to enable */
#define NIM_CHECK_SIZE(typ, sz) \
_Static_assert(sizeof(typ) == sz, "Nim & C disagree on type size")