test.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2018, Individual contributors, see AUTHORS file     |
   | See: http://www.mrpt.org/Authors - All rights reserved.                |
   | Released under BSD License. See details in http://www.mrpt.org/License |
   +------------------------------------------------------------------------+ */

#include <mrpt/system/TParameters.h>
#include <iostream>

using namespace std;
using namespace mrpt::system;

void MyCoolFunction(const TParametersDouble& params)
{
    cout << "'threshold' is " << params["threshold"] << endl;
    cout << "Is 'altitude' set? " << params.has("altitude") << endl;
    cout << "Is 'level' set? " << params.has("level") << endl;
    cout << "Level is : " << params.getWithDefaultVal("level", 666.0) << endl;
    cout << "Dump of all params:\n" << params.getAsString() << endl;
    cout << endl;
}

// ------------------------------------------------------
//              TestParameters
// ------------------------------------------------------
void TestParameters()
{
    {
        // Call #1
        cout << "CALL #1 ================================\n";
        TParametersDouble p;
        p["threshold"] = 3.05;
        p["altitude"] = 100;

        MyCoolFunction(p);
    }

    {
        // Call #2
        cout << "CALL #2 ================================\n";
        TParametersDouble p(
            "threshold", 3.05, "altitude",
            100.0,  // *VERY IMPORTANT* If you put "100" here it will be an
            // "int" and it will crash!!! Make sure all params are
            // doubles!!
            "level", -1.0, nullptr);

        MyCoolFunction(p);
    }
}

// ------------------------------------------------------
//                      MAIN
// ------------------------------------------------------
int main()
{
    try
    {
        TestParameters();

        return 0;
    }
    catch (std::exception& e)
    {
        std::cout << "MRPT exception caught: " << e.what() << std::endl;
        return -1;
    }
    catch (...)
    {
        printf("Untyped exception!!");
        return -1;
    }
}