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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_ldexp.c | |
parent | f177c949113889342d74aee8011a86bd4f589841 (diff) | |
download | fdlibm-b07e1d9fd8d9e4e03698e0bd9bf77154c5390326.tar.gz |
auto import from //depot/cupcake/@135843
Diffstat (limited to 's_ldexp.c')
-rw-r--r-- | s_ldexp.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/s_ldexp.c b/s_ldexp.c new file mode 100644 index 0000000..ce29da1 --- /dev/null +++ b/s_ldexp.c @@ -0,0 +1,28 @@ + +/* @(#)s_ldexp.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. + * ==================================================== + */ + +#include "fdlibm.h" +#include <errno.h> + +#ifdef __STDC__ + double ieee_ldexp(double value, int exp) +#else + double ieee_ldexp(value, exp) + double value; int exp; +#endif +{ + if(!ieee_finite(value)||value==0.0) return value; + value = ieee_scalbn(value,exp); + if(!ieee_finite(value)||value==0.0) errno = ERANGE; + return value; +} |