diff options
Diffstat (limited to 'test/math/c99_test.c')
| -rw-r--r-- | test/math/c99_test.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/test/math/c99_test.c b/test/math/c99_test.c new file mode 100644 index 000000000..fd6feeafc --- /dev/null +++ b/test/math/c99_test.c @@ -0,0 +1,117 @@ +//#define _GNU_SOURCE 1 +#include <math.h> +#include <float.h> +#include <stdlib.h> +#include <stdint.h> +#include <limits.h> +#include <stdio.h> + +#define check_d1(func, param, expected) \ +do { \ + int err; hex_union ur; hex_union up; \ + double result = func(param); up.f = param; ur.f = result; \ + errors += (err = (result != (expected))); \ + err \ + ? printf("FAIL: %s(%g/"HEXFMT")=%g/"HEXFMT" (expected %g)\n", \ + #func, (double)(param), (long long)up.hex, result, (long long)ur.hex, (double)(expected)) \ + : printf("PASS: %s(%g)=%g\n", #func, (double)(param), result); \ +} while (0) + +#define check_i1(func, param, expected) \ +do { \ + int err; hex_union up; \ + long long result = func(param); up.f = param; \ + errors += (err = (result != (expected))); \ + err \ + ? printf("FAIL: %s(%g/"HEXFMT")=%lld/%llu (expected %llu)\n", \ + #func, (double)(param), (long long)up.hex, result, result, (long long)(expected)) \ + : printf("PASS: %s(%g)=%lld/%llu\n", #func, (double)(param), result, result); \ +} while (0) + +#define HEXFMT "%08llx" +typedef union { + double f; + uint64_t hex; +} hex_union; + +double zero = 0.0; +double minus_zero = 0.0; +double nan_value = 0.0; +int errors = 0; + +int main(void) +{ + nan_value /= nan_value; + minus_zero = copysign(zero, -1.0); + + check_i1(isfinite, 1.0, 1); + check_i1(isfinite, 2.0, 1); + check_i1(isfinite, 3.0, 1); + check_i1(isfinite, DBL_MAX, 1); + check_i1(isfinite, FLT_MAX, 1); + check_i1(isfinite, HUGE_VAL, 0); + check_i1(isfinite, HUGE_VALF, 0); + check_i1(isfinite, HUGE_VALL, 0); + check_i1(isfinite, nan_value, 0); + check_i1(isfinite, nan_value, 0); + check_i1(isfinite, nan_value, 0); + + check_i1(isnan, 1.0, 0); + check_i1(isnan, 2.0, 0); + check_i1(isnan, 3.0, 0); + check_i1(isnan, DBL_MAX, 0); + check_i1(isnan, FLT_MAX, 0); + check_i1(isnan, HUGE_VAL, 0); + check_i1(isnan, HUGE_VALF, 0); + check_i1(isnan, HUGE_VALL, 0); + check_i1(isnan, (float)HUGE_VALL, 0); + check_i1(isnan, nan_value, 1); + check_i1(isnan, nan_value, 1); + check_i1(isnan, nan_value, 1); + + check_i1(isinf, 1.0, 0); + check_i1(isinf, 2.0, 0); + check_i1(isinf, 3.0, 0); + check_i1(isinf, DBL_MAX, 0); + check_i1(isinf, FLT_MAX, 0); + check_i1(isinf, (float)DBL_MAX, 1); + check_i1(isinf, HUGE_VAL, 1); + check_i1(isinf, HUGE_VALF, 1); + check_i1(isinf, HUGE_VALL, 1); + check_i1(isinf, (float)HUGE_VALL, 1); + check_i1(isinf, nan_value, 0); + check_i1(isinf, nan_value, 0); + check_i1(isinf, nan_value, 0); + + check_i1(fpclassify, minus_zero, FP_ZERO); + check_i1(fpclassify, 0.0, FP_ZERO); + check_i1(fpclassify, 1.0, FP_NORMAL); + check_i1(fpclassify, 2.0, FP_NORMAL); + check_i1(fpclassify, 3.0, FP_NORMAL); + check_i1(fpclassify, DBL_MIN/1.01, FP_SUBNORMAL); + check_i1(fpclassify, DBL_MIN, FP_NORMAL); + check_i1(fpclassify, DBL_MAX, FP_NORMAL); + check_i1(fpclassify, FLT_MAX, FP_NORMAL); + check_i1(fpclassify, DBL_MAX, FP_NORMAL); + check_i1(fpclassify, DBL_MAX*1.01, FP_INFINITE); + check_i1(fpclassify, HUGE_VAL, FP_INFINITE); + check_i1(fpclassify, HUGE_VALF, FP_INFINITE); + check_i1(fpclassify, HUGE_VALL, FP_INFINITE); + check_i1(fpclassify, (float)HUGE_VALL, FP_INFINITE); + check_i1(fpclassify, nan_value, FP_NAN); + check_i1(fpclassify, nan_value, FP_NAN); + check_i1(fpclassify, nan_value, FP_NAN); + + check_i1(!!signbit, -1.0, 1); + check_i1(!!signbit, minus_zero, 1); + check_i1(!!signbit, 0.0, 0); + check_i1(!!signbit, HUGE_VAL, 0); + check_i1(!!signbit, HUGE_VALF, 0); + check_i1(!!signbit, HUGE_VALL, 0); + check_i1(!!signbit, -HUGE_VAL, 1); + check_i1(!!signbit, -HUGE_VALF, 1); + check_i1(!!signbit, -HUGE_VALL, 1); + + printf("Errors: %d\n", errors); + return errors; +} |