libm/w_sinhf.c

   1 /* w_sinhf.c -- float version of w_sinh.c.
   2  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
   3  */
   4
   5 /*
   6  * ====================================================
   7  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
   8  *
   9  * Developed at SunPro, a Sun Microsystems, Inc. business.
  10  * Permission to use, copy, modify, and distribute this
  11  * software is freely granted, provided that this notice
  12  * is preserved.
  13  * ====================================================
  14  */
  15
  16 /*
  17  * wrapper sinhf(x)
  18  */
  19
  20 #include <math.h>
  21 #include "math_private.h"
  22
  23 float
  24 sinhf (float x)
  25 {
  26 #if defined(__UCLIBC_HAS_FENV__)
  27         float z = (float) __ieee754_sinh ((double) x);
  28         if (__builtin_expect (!isfinite (z), 0) && isfinite (x)
  29             && _LIB_VERSION != _IEEE_)
  30             return __kernel_standard_f (x, x, 125); /* sinhf overflow */
  31
  32         return z;
  33 #else
  34         return (float) __ieee754_sinh ((double) x);
  35 #endif
  36 }
  37