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#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;
}
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