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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_j1.c | |
download | fdlibm-8771baa10b2dc5bbedb08231d99c72cfd6abcb5b.tar.gz |
Initial Contributionandroid-1.0release-1.0cdma-import
Diffstat (limited to 'w_j1.c')
-rw-r--r-- | w_j1.c | 66 |
1 files changed, 66 insertions, 0 deletions
@@ -0,0 +1,66 @@ + +/* @(#)w_j1.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 of j1,y1 + */ + +#include "fdlibm.h" + +#ifdef __STDC__ + double ieee_j1(double x) /* wrapper j1 */ +#else + double ieee_j1(x) /* wrapper j1 */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_j1(x); +#else + double z; + z = __ieee754_j1(x); + if(_LIB_VERSION == _IEEE_ || ieee_isnan(x) ) return z; + if(ieee_fabs(x)>X_TLOSS) { + return __kernel_standard(x,x,36); /* ieee_j1(|x|>X_TLOSS) */ + } else + return z; +#endif +} + +#ifdef __STDC__ + double ieee_y1(double x) /* wrapper y1 */ +#else + double ieee_y1(x) /* wrapper y1 */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_y1(x); +#else + double z; + z = __ieee754_y1(x); + if(_LIB_VERSION == _IEEE_ || ieee_isnan(x) ) return z; + if(x <= 0.0){ + if(x==0.0) + /* d= -one/(x-x); */ + return __kernel_standard(x,x,10); + else + /* d = zero/(x-x); */ + return __kernel_standard(x,x,11); + } + if(x>X_TLOSS) { + return __kernel_standard(x,x,37); /* ieee_y1(x>X_TLOSS) */ + } else + return z; +#endif +} |