examples/Polynomial/interpolate.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 <fstream>
#include <stdlib.h>
#include <givaro/modular.h>
#include <givaro/givpoly1factor.h>
#include <givaro/givtimer.h>
#include <givaro/givinterp.h>
 
using namespace std;
 
using namespace Givaro;
 
 
 
 
int main(int argc, char** argv)
{
    typedef Modular<int32_t>::Residu_t UT ;
    UT MOD;
    if (argc > 2)
        MOD = (UT) atoi(argv[2]);
    else
        std::cin >> MOD;
 
    Modular<int32_t> F(MOD);
 
 
    Interpolation< Modular<int32_t> > FD(F,Indeter("X"));
    Interpolation< Modular<int32_t> >::Element nouv, prec;
    int EarlyTerm = 0, Bound = 5;
 
    Modular<int32_t>::Element x, f;
 
    std::ifstream input (argv[1]);
    F.read(input, x);
    F.read(input, f);
    FD(x,f);
    prec = FD.interpolator();
 
    Timer tim; tim.clear(); tim.start();
    while(! F.read(input, x).eof() ) {
        F.read(input, f);
        FD(x,f);
        nouv = FD.interpolator();
        if (FD.areEqual(nouv, prec)) {
            if (++EarlyTerm > Bound) { std::cerr << "EarlyTerminated" << std::endl ; break; }
        } else
            EarlyTerm = 0;
        prec = nouv;
    }
    tim.stop();
 
    FD.write( std::cout, FD.interpolator()  ) << std::endl;
    std::cerr << tim << std::endl;
 
    return 0;
}
 
 
 
 
/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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