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author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | 8771baa10b2dc5bbedb08231d99c72cfd6abcb5b (patch) | |
tree | 87dbea36a0e5ed0f2f8e2a499b9c1014af6a38b5 /w_log.c | |
download | fdlibm-8771baa10b2dc5bbedb08231d99c72cfd6abcb5b.tar.gz |
Initial Contributionandroid-1.0release-1.0cdma-import
Diffstat (limited to 'w_log.c')
-rw-r--r-- | w_log.c | 39 |
1 files changed, 39 insertions, 0 deletions
@@ -0,0 +1,39 @@ + +/* @(#)w_log.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. + * ==================================================== + */ + +/* + * wrapper ieee_log(x) + */ + +#include "fdlibm.h" + + +#ifdef __STDC__ + double ieee_log(double x) /* wrapper log */ +#else + double ieee_log(x) /* wrapper log */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_log(x); +#else + double z; + z = __ieee754_log(x); + if(_LIB_VERSION == _IEEE_ || ieee_isnan(x) || x > 0.0) return z; + if(x==0.0) + return __kernel_standard(x,x,16); /* ieee_log(0) */ + else + return __kernel_standard(x,x,17); /* ieee_log(x<0) */ +#endif +} |