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      1 /* @(#)w_sinh.c 5.1 93/09/24 */
      2 /*
      3  * ====================================================
      4  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
      5  *
      6  * Developed at SunPro, a Sun Microsystems, Inc. business.
      7  * Permission to use, copy, modify, and distribute this
      8  * software is freely granted, provided that this notice
      9  * is preserved.
     10  * ====================================================
     11  */
     12 
     13 #include <sys/cdefs.h>
     14 #if defined(LIBM_SCCS) && !defined(lint)
     15 __RCSID("$NetBSD: w_sinh.c,v 1.10 2007/08/20 16:01:40 drochner Exp $");
     16 #endif
     17 
     18 /*
     19  * wrapper sinh(x)
     20  */
     21 
     22 #include "namespace.h"
     23 #include "math.h"
     24 #include "math_private.h"
     25 
     26 #ifdef __weak_alias
     27 __weak_alias(sinh, _sinh)
     28 #endif
     29 
     30 double
     31 sinh(double x)		/* wrapper sinh */
     32 {
     33 #ifdef _IEEE_LIBM
     34 	return __ieee754_sinh(x);
     35 #else
     36 	double z;
     37 	z = __ieee754_sinh(x);
     38 	if(_LIB_VERSION == _IEEE_) return z;
     39 	if(!finite(z)&&finite(x)) {
     40 	    return __kernel_standard(x,x,25); /* sinh overflow */
     41 	} else
     42 	    return z;
     43 #endif
     44 }
     45