diff options
Diffstat (limited to 'lib/msun/src/w_jn.c')
-rw-r--r-- | lib/msun/src/w_jn.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/msun/src/w_jn.c b/lib/msun/src/w_jn.c new file mode 100644 index 0000000..0b087e5 --- /dev/null +++ b/lib/msun/src/w_jn.c @@ -0,0 +1,42 @@ +/* @(#)w_jn.c 5.1 93/09/24 */ +/* + * ==================================================== + * 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[] = "$FreeBSD$"; +#endif + +/* + * wrapper jn(int n, double x) + */ + +#include "math.h" +#include "math_private.h" + +#ifdef __STDC__ + double jn(int n, double x) /* wrapper jn */ +#else + double jn(n,x) /* wrapper jn */ + double x; int n; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_jn(n,x); +#else + double z; + z = __ieee754_jn(n,x); + if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; + if(fabs(x)>X_TLOSS) { + return __kernel_standard((double)n,x,38); /* jn(|x|>X_TLOSS,n) */ + } else + return z; +#endif +} |