0,0 → 1,50 |
/* sf_copysign.c -- float version of s_copysign.c. |
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
*/ |
|
/* |
* ==================================================== |
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
* |
* Developed at SunPro, a Sun Microsystems, Inc. business. |
* Permission to use, copy, modify, and distribute this |
* software is freely granted, provided that this notice |
* is preserved. |
* ==================================================== |
*/ |
|
/* |
* copysignf(float x, float y) |
* copysignf(x,y) returns a value with the magnitude of x and |
* with the sign bit of y. |
*/ |
|
#include "fdlibm.h" |
|
#ifdef __STDC__ |
float copysignf(float x, float y) |
#else |
float copysignf(x,y) |
float x,y; |
#endif |
{ |
__uint32_t ix,iy; |
GET_FLOAT_WORD(ix,x); |
GET_FLOAT_WORD(iy,y); |
SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000)); |
return x; |
} |
|
#ifdef _DOUBLE_IS_32BITS |
|
#ifdef __STDC__ |
double copysign(double x, double y) |
#else |
double copysign(x,y) |
double x,y; |
#endif |
{ |
return (double) copysignf((float) x, (float) y); |
} |
|
#endif /* defined(_DOUBLE_IS_32BITS) */ |