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Diffstat (limited to 'newlib/libm/common/s_copysign.c')
-rw-r--r-- | newlib/libm/common/s_copysign.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/newlib/libm/common/s_copysign.c b/newlib/libm/common/s_copysign.c deleted file mode 100644 index bfc546d..0000000 --- a/newlib/libm/common/s_copysign.c +++ /dev/null @@ -1,82 +0,0 @@ - -/* @(#)s_copysign.c 5.1 93/09/24 */ -/* - * ==================================================== - * 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. - * ==================================================== - */ - -/* -FUNCTION -<<copysign>>, <<copysignf>>---sign of <[y]>, magnitude of <[x]> - -INDEX - copysign -INDEX - copysignf - -ANSI_SYNOPSIS - #include <math.h> - double copysign (double <[x]>, double <[y]>); - float copysignf (float <[x]>, float <[y]>); - -TRAD_SYNOPSIS - #include <math.h> - double copysign (<[x]>, <[y]>) - double <[x]>; - double <[y]>; - - float copysignf (<[x]>, <[y]>) - float <[x]>; - float <[y]>; - -DESCRIPTION -<<copysign>> constructs a number with the magnitude (absolute value) -of its first argument, <[x]>, and the sign of its second argument, -<[y]>. - -<<copysignf>> does the same thing; the two functions differ only in -the type of their arguments and result. - -RETURNS -<<copysign>> returns a <<double>> with the magnitude of -<[x]> and the sign of <[y]>. -<<copysignf>> returns a <<float>> with the magnitude of -<[x]> and the sign of <[y]>. - -PORTABILITY -<<copysign>> is not required by either ANSI C or the System V Interface -Definition (Issue 2). - -*/ - -/* - * copysign(double x, double y) - * copysign(x,y) returns a value with the magnitude of x and - * with the sign bit of y. - */ - -#include "fdlibm.h" - -#ifndef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - double copysign(double x, double y) -#else - double copysign(x,y) - double x,y; -#endif -{ - __uint32_t hx,hy; - GET_HIGH_WORD(hx,x); - GET_HIGH_WORD(hy,y); - SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000)); - return x; -} - -#endif /* _DOUBLE_IS_32BITS */ |