#if __INT_MAX__ != 2147483647 || (__LONG_LONG_MAX__ != 9223372036854775807ll && __LONG_MAX__ != 9223372036854775807ll) int main(void) { exit (0); } #else #if __LONG_MAX__ != 9223372036854775807ll typedef unsigned long long ull; #else typedef unsigned long ull; #endif typedef unsigned ul; union fl { float f; ul l; } uf; union dl { double d; ull ll; } ud; int failed = 0; void c(ull d, ul f) { ud.ll = d; uf.f = (float) ud.d; if (uf.l != f) { failed++; } } int main() { if (sizeof (float) != sizeof (ul) || sizeof (double) != sizeof (ull)) exit (0); c(0x3690000000000000ULL, 0x00000000U); #if (defined __arm__ || defined __thumb__) && ! (defined __ARMEB__ || defined __VFP_FP__) /* The ARM always stores FP numbers in big-wordian format, even when running in little-byteian mode. */ c(0x0000000136900000ULL, 0x00000001U); c(0xffffffff369fffffULL, 0x00000001U); c(0x0000000036A00000ULL, 0x00000001U); c(0xffffffff36A7ffffULL, 0x00000001U); c(0x0000000036A80000ULL, 0x00000002U); c(0xffffffff36AfffffULL, 0x00000002U); c(0x0000000036b00000ULL, 0x00000002U); c(0x0000000136b00000ULL, 0x00000002U); c(0xdfffffff380fffffULL, 0x007fffffU); c(0xe0000000380fffffULL, 0x00800000U); c(0xe0000001380fffffULL, 0x00800000U); c(0xffffffff380fffffULL, 0x00800000U); c(0x0000000038100000ULL, 0x00800000U); c(0x0000000138100000ULL, 0x00800000U); c(0x1000000038100000ULL, 0x00800000U); c(0x1000000138100000ULL, 0x00800001U); c(0x2fffffff38100000ULL, 0x00800001U); c(0x3000000038100000ULL, 0x00800002U); c(0x5000000038100000ULL, 0x00800002U); c(0x5000000138100000ULL, 0x00800003U); #else c(0x3690000000000001ULL, 0x00000001U); c(0x369fffffffffffffULL, 0x00000001U); c(0x36A0000000000000ULL, 0x00000001U); c(0x36A7ffffffffffffULL, 0x00000001U); c(0x36A8000000000000ULL, 0x00000002U); c(0x36AfffffffffffffULL, 0x00000002U); c(0x36b0000000000000ULL, 0x00000002U); c(0x36b0000000000001ULL, 0x00000002U); c(0x380fffffdfffffffULL, 0x007fffffU); c(0x380fffffe0000000ULL, 0x00800000U); c(0x380fffffe0000001ULL, 0x00800000U); c(0x380fffffffffffffULL, 0x00800000U); c(0x3810000000000000ULL, 0x00800000U); c(0x3810000000000001ULL, 0x00800000U); c(0x3810000010000000ULL, 0x00800000U); c(0x3810000010000001ULL, 0x00800001U); c(0x381000002fffffffULL, 0x00800001U); c(0x3810000030000000ULL, 0x00800002U); c(0x3810000050000000ULL, 0x00800002U); c(0x3810000050000001ULL, 0x00800003U); #endif if (failed) abort (); else exit (0); } #endif