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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [builtin-bswap-4.c] - Rev 328
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/* { dg-do run } */ /* { dg-require-effective-target stdint_types } */ /* { dg-options "-Wall" } */ #include <stdint.h> #define MAKE_FUN(suffix, type) \ type my_bswap##suffix(type x) { \ type result = 0; \ int shift; \ for (shift = 0; shift < 8 * sizeof (type); shift += 8) \ { \ result <<= 8; \ result |= (x >> shift) & 0xff; \ } \ return result; \ } \ MAKE_FUN(32, uint32_t); MAKE_FUN(64, uint64_t); extern void abort (void); #define NUMS32 \ { \ 0x00000000UL, \ 0x11223344UL, \ 0xffffffffUL, \ } #define NUMS64 \ { \ 0x0000000000000000ULL, \ 0x1122334455667788ULL, \ 0xffffffffffffffffULL, \ } uint32_t uint32_ts[] = NUMS32; uint64_t uint64_ts[] = NUMS64; #define N(table) (sizeof (table) / sizeof (table[0])) int main (void) { int i; for (i = 0; i < N(uint32_ts); i++) if (__builtin_bswap32 (uint32_ts[i]) != my_bswap32 (uint32_ts[i])) abort (); for (i = 0; i < N(uint64_ts); i++) if (__builtin_bswap64 (uint64_ts[i]) != my_bswap64 (uint64_ts[i])) abort (); return 0; }
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