math/w_coshf_compat.c

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