Givaro
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]);
{
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;
}