/* LibTomFloat, multiple-precision floating-point library * * LibTomFloat is a library that provides multiple-precision * floating-point artihmetic as well as trigonometric functionality. * * This library requires the public domain LibTomMath to be installed. *  * This library is free for all purposes without any express * gurantee it works * * Tom St Denis, tomstdenis@iahu.ca, http://float.libtomcrypt.org */#include <tomfloat.h> int  mpf_const_e(mp_float *a){   int err;    if ((err = mpf_const_d(a, 1)) != MP_OKAY) {      return err;   }   return mpf_exp(a, a);}