libs/itl/example/interval_/interval.cpp File Reference

Intervals for integral and continuous instance types. Closed and open interval borders. More...

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Detailed Description

Intervals for integral and continuous instance types. Closed and open interval borders.

Example interval.cpp Much of the library code deals with intervals which are implemented as class interval. This program gives a very short samlpe of different interval instances.

/*-----------------------------------------------------------------------------+
Interval Template Library
Author: Joachim Faulhaber
Copyright (c) 2007-2009: Joachim Faulhaber
Copyright (c) 1999-2006: Cortex Software GmbH, Kantstrasse 57, Berlin
+------------------------------------------------------------------------------+
   Distributed under the Boost Software License, Version 1.0.
      (See accompanying file LICENCE.txt or copy at
           http://www.boost.org/LICENSE_1_0.txt)
+-----------------------------------------------------------------------------*/
//[example_interval
#include <iostream>
#include <string>
#include <math.h>
#include <boost/itl/interval.hpp>
#include "../toytime.hpp"

using namespace std;
using namespace boost::itl;

int main()
{
    cout << ">> Interval Template Library: Sample interval.cpp <<\n";
    cout << "----------------------------------------------------\n";

    interval<int>    int_interval  = interval<int>::closed(3,7);
    interval<double> sqrt_interval = interval<double>::rightopen(1/sqrt(2.0), sqrt(2.0));
    interval<string> city_interval = interval<string>::leftopen("Barcelona", "Boston");
    interval<Time>   time_interval = interval<Time>::open(Time(monday,8,30), Time(monday,17,20));

    cout << "Interval<int>: "    << int_interval  << endl;
    cout << "Interval<double>: " << sqrt_interval << " does " 
                                 << string(sqrt_interval.contains(sqrt(2.0))?"":"NOT") 
                                 << " contain sqrt(2)" << endl;
    cout << "Interval<string>: " << city_interval << " does "  
                                 << string(city_interval.contains("Barcelona")?"":"NOT") 
                                 << " contain 'Barcelona'" << endl;
    cout << "Interval<string>: " << city_interval << " does "  
                                 << string(city_interval.contains("Berlin")?"":"NOT") 
                                 << " contain 'Berlin'" << endl;
    cout << "Interval<Time>: "   << time_interval << endl;

    return 0;
}

// Program output:

// >> Interval Template Library: Sample interval.cpp <<
// ---------------------------------------------------
// Interval<int>: [3,7]
// Interval<double>: [0.707107,1.41421) does NOT contain sqrt(2)
// Interval<string>: (Barcelona,Boston] does NOT contain 'Barcelona'
// Interval<string>: (Barcelona,Boston] does  contain 'Berlin'
// Interval<Time>: (mon:08:30,mon:17:20)
//]