From 8771baa10b2dc5bbedb08231d99c72cfd6abcb5b Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 21 Oct 2008 07:00:00 -0700 Subject: Initial Contribution --- w_j1.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 w_j1.c (limited to 'w_j1.c') diff --git a/w_j1.c b/w_j1.c new file mode 100644 index 0000000..8d27040 --- /dev/null +++ b/w_j1.c @@ -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 +} -- cgit v1.2.3