math/w_coshf_compat.c

   1 /* w_coshf.c -- float version of w_cosh.c.
   2  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
   3  * Optimizations by Ulrich Drepper <drepper@gmail.com>, 2011.
   4  */
   5
   6 /*
   7  * ====================================================
   8  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
   9  *
  10  * Developed at SunPro, a Sun Microsystems, Inc. business.
  11  * Permission to use, copy, modify, and distribute this
  12  * software is freely granted, provided that this notice
  13  * is preserved.
  14  * ====================================================
  15  */
  16
  17 /*
  18  * wrapper coshf(x)
  19  */
  20
  21 #include <math.h>
  22 #include <math_private.h>
  23 #include <math-svid-compat.h>
  24 #include <libm-alias-float.h>
  25
  26 #if LIBM_SVID_COMPAT
  27 float
  28 __coshf (float x)
  29 {
  30         float z = __ieee754_coshf (x);
  31         if (__builtin_expect (!isfinite (z), 0) && isfinite (x)
  32             && _LIB_VERSION != _IEEE_)
  33                 return __kernel_standard_f (x, x, 105); /* cosh overflow */
  34
  35         return z;
  36 }
  37 libm_alias_float (__cosh, cosh)
  38 #endif