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abi check: prefer nim constant to enable, document

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This commit is contained in:
Jacek Sieka 2016-11-03 22:30:00 +08:00
commit fa86571448
3 changed files with 7 additions and 7 deletions
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8
lib/nimbase.h
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@ -460,10 +460,6 @@ typedef int Nim_and_C_compiler_disagree_on_target_architecture[sizeof(NI) == siz
# include <sys/types.h>
#endif
/* Compile with -t:-DNIM_CHECK_ABI to enable */
#ifdef NIM_CHECK_ABI
# define NIM_CHECK_SIZE(typ, sz) \
/* 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")
#else
# define NIM_CHECK_SIZE(typ, sz)
#endif