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Annotation of src/lib/libm/src/w_asin.c, Revision 1.1.1.1

1.1       jtc         1:
                      2: /* @(#)w_asin.c 5.1 93/09/24 */
                      3: /*
                      4:  * ====================================================
                      5:  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
                      6:  *
                      7:  * Developed at SunPro, a Sun Microsystems, Inc. business.
                      8:  * Permission to use, copy, modify, and distribute this
                      9:  * software is freely granted, provided that this notice
                     10:  * is preserved.
                     11:  * ====================================================
                     12:  *
                     13:  */
                     14:
                     15: /*
                     16:  * wrapper asin(x)
                     17:  */
                     18:
                     19:
                     20: #include "fdlibm.h"
                     21:
                     22:
                     23: #ifdef __STDC__
                     24:        double asin(double x)           /* wrapper asin */
                     25: #else
                     26:        double asin(x)                  /* wrapper asin */
                     27:        double x;
                     28: #endif
                     29: {
                     30: #ifdef _IEEE_LIBM
                     31:        return __ieee754_asin(x);
                     32: #else
                     33:        double z;
                     34:        z = __ieee754_asin(x);
                     35:        if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
                     36:        if(fabs(x)>1.0) {
                     37:                return __kernel_standard(x,x,2); /* asin(|x|>1) */
                     38:        } else
                     39:            return z;
                     40: #endif
                     41: }