CastableIterator-example.cpp

Implements iterator for Castable. properties (++,–,*) for a

/*
 
    Copyright 2001 - 2017  Markus Peura, Finnish Meteorological Institute (First.Last@fmi.fi)
 
 
    This file is part of Rack for C++.
 
    Rack is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    any later version.
 
    Rack is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with Rack.  If not, see <http://www.gnu.org/licenses/>.
 
 */
/*
 REQUIRE:  drain/util/{Caster,Castable,Log,RegExp,Sprinter,String,TextStyle,TextStyleVT100,Type,TypeUtils}.cpp
 g ++ -I. drain/examples/CastableIterator-example.cpp drain/util/{Caster,Castable,JSONwriter,RegExp,String,Type}.cpp -o CastableIterator-example
 */
 
#include <iostream>
 
#include "drain/CastableIterator.h"
#include "drain/String.h"
 
using namespace std;
using namespace drain;
 
int main(int argc, char **argv){
 
    int intArray[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
 
    const CastableIterator end = & intArray[10]; // Some compilers may complain...
    for (CastableIterator it = & intArray[0]; it != end; ++it)
        cout << *it << ' ';
    cout << endl;
 
    double doubleArray[5] = {0.1, 0.2, 0.3, 0.4, 0.5};
 
    const CastableIterator endD = & doubleArray[5]; // Some compilers may complain...
    CastableIterator itI = intArray;
    CastableIterator itD = doubleArray;
    while (itD != endD){
        *itD = *itI;  // Direct assignment needs no explicit casting.
        *itD = 1.2f * static_cast<float>(*itD);  // Arithmetic operations need casting.
        cout << *itD << ' ';
        ++itD, ++itI;
    }
    cout << endl;
 
    return 0;
}