StdLib/LibC/Math/w_sinh.c

   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 #include  <LibConfig.h>
  13 #include  <sys/EfiCdefs.h>
  14 #if defined(LIBM_SCCS) && !defined(lint)
  15 __RCSID("$NetBSD: w_sinh.c,v 1.9 2002/05/26 22:02:03 wiz Exp $");
  16 #endif
  17
  18 /*
  19  * wrapper sinh(x)
  20  */
  21
  22 #include "math.h"
  23 #include "math_private.h"
  24
  25 double
  26 sinh(double x)    /* wrapper sinh */
  27 {
  28 #ifdef _IEEE_LIBM
  29   return __ieee754_sinh(x);
  30 #else
  31   double z;
  32   z = __ieee754_sinh(x);
  33   if(_LIB_VERSION == _IEEE_) return z;
  34   if(!finite(z)&&finite(x)) {
  35       return __kernel_standard(x,x,25); /* sinh overflow */
  36   } else
  37       return z;
  38 #endif
  39 }