csign.c File Reference

#include "prim.h"

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Functions
double	copysign (double x, double y)
	Returns a value with the magnitude of x and with the sign bit of y. More...

Function Documentation

copysign()

double copysign	(	double	x,
		double	y
	)

Returns a value with the magnitude of x and with the sign bit of y.

Definition at line 47 of file csign.c.

Referenced by scalbn().

{
    uint32_t hx, hy;
    GET_HIGH_WORD(hx, x);
    GET_HIGH_WORD(hy, y);
    SET_HIGH_WORD(x, (hx & 0x7fffffff) | (hy & 0x80000000));
    return x;
}

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