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Merge pull request #978 from ReneSac/devel

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Added comment explaining 'assert_numbits' error.
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Andreas Rumpf 2014-03-06 22:24:52 +01:00
commit 7500a5ea0b
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lib/nimbase.h
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@ -373,5 +373,8 @@ static inline void GCGuard (void *ptr) { asm volatile ("" :: "X" (ptr)); }
# define GC_GUARD # define GC_GUARD
#endif #endif
/* Test to see if nimrod and the C compiler agrees on the size of a pointer.
On disagreement, your C compiler will say something like:
"error: 'assert_numbits' declared as an array with a negative size" */
typedef int assert_numbits[sizeof(NI) == sizeof(void*) && NIM_INTBITS == sizeof(NI)*8 ? 1 : -1]; typedef int assert_numbits[sizeof(NI) == sizeof(void*) && NIM_INTBITS == sizeof(NI)*8 ? 1 : -1];
#endif #endif