js/src/fdlibm/w_sinh.c

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  16  * The Original Code is Mozilla Communicator client code, released
  17  * March 31, 1998.
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  39
  40 /* @(#)w_sinh.c 1.3 95/01/18 */
  41 /*
  42  * ====================================================
  43  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
  44  *
  45  * Developed at SunSoft, a Sun Microsystems, Inc. business.
  46  * Permission to use, copy, modify, and distribute this
  47  * software is freely granted, provided that this notice
  48  * is preserved.
  49  * ====================================================
  50  */
  51
  52 /*
  53  * wrapper sinh(x)
  54  */
  55
  56 #include "fdlibm.h"
  57
  58 #ifdef __STDC__
  59         double fd_sinh(double x)                /* wrapper sinh */
  60 #else
  61         double fd_sinh(x)                       /* wrapper sinh */
  62         double x;
  63 #endif
  64 {
  65 #ifdef _IEEE_LIBM
  66         return __ieee754_sinh(x);
  67 #else
  68         double z;
  69         z = __ieee754_sinh(x);
  70         if(_LIB_VERSION == _IEEE_) return z;
  71         if(!fd_finite(z)&&fd_finite(x)) {
  72         int err;
  73             return __kernel_standard(x,x,25,&err); /* sinh overflow */
  74         } else
  75             return z;
  76 #endif
  77 }