newlib/libm/mathfp/sf_exp2.c

   1 /* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
   2  *
   3  * Permission to use, copy, modify, and distribute this software
   4  * is freely granted, provided that this notice is preserved.
   5  */
   6
   7 #include "fdlibm.h"
   8
   9 float
  10 exp2f (float x)
  11 {
  12   return powf(2.0, x);
  13 }
  14
  15 #ifdef _DOUBLE_IS_32BITS
  16
  17 double exp2 (double x)
  18 {
  19   return (double) exp2f ((float) x);
  20 }
  21
  22 #endif /* _DOUBLE_IS_32BITS */