w_asin.c

/* @(#)w_asin.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 asin(x)
 */


#include "fdlibm.h"

double asin(double x)           /* wrapper asin */
{
#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
}