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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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9
libc/math/copysignf.c Normal file
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#include "libc/math/math.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;
}