11 lines
186 B
C
11 lines
186 B
C
#include <math.h>
|
|
#include <stdint.h>
|
|
|
|
float copysignf(float x, float y)
|
|
{
|
|
union {float f; uint32_t i;} ux={x}, uy={y};
|
|
ux.i &= 0x7fffffff;
|
|
ux.i |= uy.i & 0x80000000;
|
|
return ux.f;
|
|
}
|