1 /**
2  * This file has no copyright assigned and is placed in the Public Domain.
3  * This file is part of the mingw-w64 runtime package.
4  * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5  */
6 #include <math.h>
7 
8 typedef union ui_f {
9 	float f;
10 	unsigned int ui;
11 } ui_f;
12 
copysignf(float aX,float aY)13 float copysignf(float aX, float aY)
14 {
15   ui_f x,y;
16   x.f=aX; y.f=aY;
17   x.ui= (x.ui & 0x7fffffff) | (y.ui & 0x80000000);
18   return x.f;
19 }
20