1 /* sf_copysign.c -- float version of s_copysign.c. 2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. 3 */ 4 5 /* 6 * ==================================================== 7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 8 * 9 * Developed at SunPro, a Sun Microsystems, Inc. business. 10 * Permission to use, copy, modify, and distribute this 11 * software is freely granted, provided that this notice 12 * is preserved. 13 * ==================================================== 14 */ 15 16 /* 17 * copysignf(float x, float y) 18 * copysignf(x,y) returns a value with the magnitude of x and 19 * with the sign bit of y. 20 */ 21 22 #include "fdlibm.h" 23 24 #ifdef __STDC__ copysignf(float x,float y)25 float copysignf(float x, float y) 26 #else 27 float copysignf(x,y) 28 float x,y; 29 #endif 30 { 31 __uint32_t ix,iy; 32 GET_FLOAT_WORD(ix,x); 33 GET_FLOAT_WORD(iy,y); 34 SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000)); 35 return x; 36 } 37 38 _MATH_ALIAS_f_ff(copysign) 39