| #include "double_conversion.h" |
| #include <math.h> |
| #include <stdio.h> |
| |
| static const double testvalues[] = { |
| 0.0, -0.0, 0.1, -0.1, |
| M_PI, -M_PI, 123456.789, -123456.789, |
| INFINITY, -INFINITY, NAN, INFINITY - INFINITY, |
| 1e38, -1e38, 1e39, -1e39, |
| 1e-38, -1e-38, 1e-39, -1e-39, |
| 3.14159e-37,-3.14159e-37, 3.14159e-43, -3.14159e-43, |
| 1e-60, -1e-60, 1e-45, -1e-45, |
| 0.99999999999999, -0.99999999999999, 127.999999999999, -127.999999999999 |
| }; |
| |
| #define TESTVALUES_COUNT (sizeof(testvalues)/sizeof(testvalues[0])) |
| |
| int main() |
| { |
| int status = 0; |
| int i; |
| for (i = 0; i < TESTVALUES_COUNT; i++) |
| { |
| double orig = testvalues[i]; |
| float expected_float = (float)orig; |
| double expected_double = (double)expected_float; |
| |
| float got_float = double_to_float(*(uint64_t*)&orig); |
| uint64_t got_double = float_to_double(got_float); |
| |
| uint32_t e1 = *(uint32_t*)&expected_float; |
| uint32_t g1 = *(uint32_t*)&got_float; |
| uint64_t e2 = *(uint64_t*)&expected_double; |
| uint64_t g2 = got_double; |
| |
| if (g1 != e1) |
| { |
| printf("%3d double_to_float fail: %08x != %08x\n", i, g1, e1); |
| status = 1; |
| } |
| |
| if (g2 != e2) |
| { |
| printf("%3d float_to_double fail: %016llx != %016llx\n", i, |
| (unsigned long long)g2, |
| (unsigned long long)e2); |
| status = 1; |
| } |
| } |
| |
| return status; |
| } |
| |
| |
| |
| |