examples/Integer/ispower.C

NO DOC

// Copyright(c)'1994-2009 by The Givaro group
// This file is part of Givaro.
// Givaro is governed by the CeCILL-B license under French law
// and abiding by the rules of distribution of free software.
// see the COPYRIGHT file for more details.
 
#include <iostream>
#include <stdlib.h>
#include <givaro/givinteger.h>
#include <givaro/givintprime.h>
#include <givaro/givtimer.h>
 
using namespace Givaro;
 
 
 
 
int main(int argc, char** argv)
{
    Integer m, p;
    if (argc > 1) m = Integer(argv[1]);
    IntPrimeDom IP;
 
    {
        Timer tim; tim.clear(); tim.start();
        int a = isperfectpower(m);
        tim.stop();
        std::cout << a << std::endl;
        std::cerr << tim << std::endl;
    }
    {
        Timer tim; tim.clear(); tim.start();
        int a = (int)IP.isprimepower(p, m);
        tim.stop();
        if (a) std::cout << "is " << p << "^" << a << std::endl;
        else   std::cout << "not a prime power" << std::endl;
 
        std::cerr << tim << std::endl;
    }
    return 0;
}
/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// vim:sts=4:sw=4:ts=4:et:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s