big_const.hpp

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/*****************************************************************************
    
    big_const.hpp -- functions that calculates several constants.

    This file is a part of the Arageli library.

    Copyright (C) Alexander Pshenichnikov, 2005--2006
    Copyright (C) Nikolay Santalov, 2005--2006
    
    University of Nizhni Novgorod, Russia

*****************************************************************************/

#ifndef _ARAGELI_big_const_h_
#define _ARAGELI_big_const_h_

#include <cstddef>

#include "config.hpp"
#include "big_int.hpp"
#include "std_import.hpp"

namespace Arageli
{
big_int ln1_25(std::size_t nbits); 

big_int ln1_25_o(std::size_t nbits);

big_int ln1_25_u(std::size_t nbits);

big_int ln2 (std::size_t nbits);

big_int ln2_u(std::size_t nbits);

big_int ln2_o(std::size_t nbits);

big_int lg_2( std::size_t nbits ); 

big_int lg_2_u( std::size_t nbits );

big_int lg_2_o( std::size_t nbits );

big_int log2_10( std::size_t nbits ) ;//Returnslog2_10

big_int log2_10_o( std::size_t nbits ) ;//Returnslog2_10 with nbits significant bits with overflow  

big_int log2_10_u( std::size_t nbits ) ;//Returnslog2_10 with nbits significant bits with imperfection 

big_int exp ( big_int arg, std::size_t nbits,   int factor = 0 );

big_int exp_u ( big_int arg, std::size_t nbits, int factor = 0 );

big_int exp_o ( big_int arg, std::size_t nbits, int factor = 0 );

big_int exp_2 ( big_int arg, std::size_t nbits,   int factor = 0 );

big_int exp_2_u ( big_int arg, std::size_t nbits, int factor = 0 );

big_int exp_2_o (big_int arg, std::size_t nbits,  int factor = 0 );

big_int e (std::size_t nbits  );

big_int e_u (std::size_t nbits  );

big_int e_o ( std::size_t nbits  );

big_int ln10 (std::size_t nbits);

big_int ln10_u(std::size_t nbits);

big_int ln10_o(std::size_t nbits);
}

#endif 

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