diff options
Diffstat (limited to 'libjava/classpath/native/fdlibm/s_copysign.c')
| -rw-r--r-- | libjava/classpath/native/fdlibm/s_copysign.c | 59 |
1 files changed, 7 insertions, 52 deletions
diff --git a/libjava/classpath/native/fdlibm/s_copysign.c b/libjava/classpath/native/fdlibm/s_copysign.c index 4804df130dc..38a9f6f7972 100644 --- a/libjava/classpath/native/fdlibm/s_copysign.c +++ b/libjava/classpath/native/fdlibm/s_copysign.c @@ -1,61 +1,17 @@ -/* @(#)s_copysign.c 5.1 93/09/24 */ +/* @(#)s_copysign.c 1.3 95/01/18 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. * - * Developed at SunPro, a Sun Microsystems, Inc. business. + * Developed at SunSoft, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice + * 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. @@ -72,11 +28,10 @@ Definition (Issue 2). 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)); + 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 */ |