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Diffstat (limited to 'lib/msun/src/w_asin.c')
-rw-r--r-- | lib/msun/src/w_asin.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/msun/src/w_asin.c b/lib/msun/src/w_asin.c new file mode 100644 index 0000000..f28c018 --- /dev/null +++ b/lib/msun/src/w_asin.c @@ -0,0 +1,44 @@ +/* @(#)w_asin.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[] = "$Id: w_asin.c,v 1.4 1994/08/10 20:33:30 jtc Exp $"; +#endif + +/* + * wrapper asin(x) + */ + + +#include "math.h" +#include "math_private.h" + + +#ifdef __STDC__ + double asin(double x) /* wrapper asin */ +#else + double asin(x) /* wrapper asin */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_asin(x); +#else + double z; + z = __ieee754_asin(x); + if(_LIB_VERSION == _IEEE_ || isnan(x)) return z; + if(fabs(x)>1.0) { + return __kernel_standard(x,x,2); /* asin(|x|>1) */ + } else + return z; +#endif +} |