Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.c-torture/execute/ffs-2.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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struct { int input; int output; } ffstesttab[] = { #if __INT_MAX__ >= 2147483647 /* at least 32-bit integers */ { 0x80000000, 32 }, { 0xa5a5a5a5, 1 }, { 0x5a5a5a5a, 2 }, { 0xcafe0000, 18 }, #endif #if __INT_MAX__ >= 32767 /* at least 16-bit integers */ { 0x8000, 16 }, { 0xa5a5, 1 }, { 0x5a5a, 2 }, { 0x0ca0, 6 }, #endif #if __INT_MAX__ < 32767 #error integers are too small #endif }; #define NFFSTESTS (sizeof (ffstesttab) / sizeof (ffstesttab[0])) extern void abort (void); extern void exit (int); int main (void) { int i; for (i = 0; i < NFFSTESTS; i++) { if (__builtin_ffs (ffstesttab[i].input) != ffstesttab[i].output) abort (); } exit (0); }