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#include <math.h>
#include <float.h>
#include <stdlib.h>
#include <stdint.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 HEXFMT "%08llx"
typedef union {
double f;
uint64_t hex;
} hex_union;
double result;
int errors = 0;
int main(void)
{
check_d1(rint, 0.6, 1.0);
printf("Errors: %d\n", errors);
return errors;
}
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