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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:29:30 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:29:30 -0800 |
commit | b07e1d9fd8d9e4e03698e0bd9bf77154c5390326 (patch) | |
tree | 87dbea36a0e5ed0f2f8e2a499b9c1014af6a38b5 /s_copysign.c | |
parent | f177c949113889342d74aee8011a86bd4f589841 (diff) | |
download | fdlibm-b07e1d9fd8d9e4e03698e0bd9bf77154c5390326.tar.gz |
auto import from //depot/cupcake/@135843
Diffstat (limited to 's_copysign.c')
-rw-r--r-- | s_copysign.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/s_copysign.c b/s_copysign.c new file mode 100644 index 0000000..c61698c --- /dev/null +++ b/s_copysign.c @@ -0,0 +1,31 @@ + +/* @(#)s_copysign.c 1.3 95/01/18 */ +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunSoft, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * ieee_copysign(double x, double y) + * ieee_copysign(x,y) returns a value with the magnitude of x and + * with the sign bit of y. + */ + +#include "fdlibm.h" + +#ifdef __STDC__ + double ieee_copysign(double x, double y) +#else + double ieee_copysign(x,y) + double x,y; +#endif +{ + __HI(x) = (__HI(x)&0x7fffffff)|(__HI(y)&0x80000000); + return x; +} |