| /* s_copysignf.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. |
| * ==================================================== |
| */ |
| |
| #if defined(LIBM_SCCS) && !defined(lint) |
| static char rcsid[] = "$NetBSD: s_copysignf.c,v 1.4 1995/05/10 20:46:59 jtc Exp $"; |
| #endif |
| |
| /* |
| * copysignf(float x, float y) |
| * copysignf(x,y) returns a value with the magnitude of x and |
| * with the sign bit of y. |
| */ |
| |
| #include "math.h" |
| #include "math_private.h" |
| |
| #ifdef __STDC__ |
| float __copysignf(float x, float y) |
| #else |
| float __copysignf(x,y) |
| float x,y; |
| #endif |
| { |
| u_int32_t ix,iy; |
| GET_FLOAT_WORD(ix,x); |
| GET_FLOAT_WORD(iy,y); |
| SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000)); |
| return x; |
| } |
| weak_alias (__copysignf, copysignf) |
