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| author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:28:35 -0800 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:28:35 -0800 |
| commit | 1dc9e472e19acfe6dc7f41e429236e7eef7ceda1 (patch) | |
| tree | 3be0c520fae17689bbf5584e1136fb820caef26f /libm/src/s_finitef.c | |
| parent | 1767f908af327fa388b1c66883760ad851267013 (diff) | |
| download | bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.zip bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.tar.gz bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.tar.bz2 | |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'libm/src/s_finitef.c')
| -rw-r--r-- | libm/src/s_finitef.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libm/src/s_finitef.c b/libm/src/s_finitef.c new file mode 100644 index 0000000..b430639 --- /dev/null +++ b/libm/src/s_finitef.c @@ -0,0 +1,33 @@ +/* s_finitef.c -- float version of s_finite.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. + * ==================================================== + */ + +#ifndef lint +static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_finitef.c,v 1.6 2002/05/28 17:51:46 alfred Exp $"; +#endif + +/* + * finitef(x) returns 1 is x is finite, else 0; + * no branching! + */ + +#include "math.h" +#include "math_private.h" + + int finitef(float x) +{ + int32_t ix; + GET_FLOAT_WORD(ix,x); + return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31); +} |