#include <math.h>
#include <stdint.h>

float fabsf(float num) {
	union {float f; uint32_t i;} u = {num};
	u.i &= 0x7fffffff;
	return u.f;
}

double fabs(double num) {
	union {double f; uint64_t i;} u = {num};
	u.i &= -1ULL/2;
	return u.f;
}