math/w_exp10l.c

   1 /* w_exp10l.c -- long double version of w_exp10.c.
   2  * Conversion to long double by Ulrich Drepper,
   3  * Cygnus Support, drepper@cygnus.com.
   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 exp10l(x)
  19  */
  20
  21 #include <math.h>
  22 #include "math_private.h"
  23
  24 #ifdef __STDC__
  25         long double __exp10l(long double x)     /* wrapper exp10 */
  26 #else
  27         long double __exp10l(x)                 /* wrapper exp10 */
  28         long double x;
  29 #endif
  30 {
  31 #ifdef _IEEE_LIBM
  32         return __ieee754_exp10l(x);
  33 #else
  34         long double z;
  35         z = __ieee754_exp10l(x);
  36         if(_LIB_VERSION == _IEEE_) return z;
  37         if(!__finitel(z) && __finitel(x)) {
  38             /* exp10 overflow (246) if x > 0, underflow (247) if x < 0.  */
  39             return __kernel_standard(x,x,246+__signbitl(x));
  40         }
  41         return z;
  42 #endif
  43 }
  44 weak_alias (__exp10l, exp10l)
  45 strong_alias (__exp10l, __pow10l)
  46 weak_alias (__pow10l, pow10l)