typemeta_TTypeName/test.cpp

/* +------------------------------------------------------------------------+
   |                     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 |
   +------------------------------------------------------------------------+ */
/** \example typemeta_TTypeName/test.cpp */
 
//! [example typename]
#include <mrpt/typemeta/TTypeName.h>
#include <mrpt/typemeta/TTypeName_stl.h>
#include <iostream>
#include <memory>  // shared_ptr
 
// Declare custom user types:
struct MyFooClass
{
        using Ptr = std::shared_ptr<MyFooClass>;
};
namespace MyNS
{
struct MyBarClass
{
};
struct MyBarClass2
{
        DECLARE_TTYPENAME_CLASSNAME(MyNS::MyBarClass2)
};
}
DECLARE_CUSTOM_TTYPENAME(MyFooClass);
DECLARE_CUSTOM_TTYPENAME(MyNS::MyBarClass);
 
void Test_TypeName()
{
        using namespace std;
        using namespace mrpt::typemeta;
 
        // Evaluation of type names as constexpr strings:
        constexpr auto s1 = TTypeName<int32_t>::get();
        cout << s1 << endl;
 
        cout << TTypeName<set<vector<double>>>::get() << endl;
 
        // Evaluation of user-defined types:
        cout << TTypeName<MyFooClass>::get() << endl;
        cout << TTypeName<MyFooClass::Ptr>::get() << endl;
        cout << TTypeName<MyNS::MyBarClass>::get() << endl;
        cout << TTypeName<MyNS::MyBarClass2>::get() << endl;
 
        // STL typenames as strings:
        cout << TTypeName<double>::get() << endl;
        cout << TTypeName<vector<double>>::get() << endl;
        cout << TTypeName<array<int32_t, 5>>::get() << endl;
        cout << TTypeName<set<double>>::get() << endl;
        cout << TTypeName<pair<int32_t, pair<int32_t, int32_t>>>::get() << endl;
        cout << TTypeName<map<double, set<int32_t>>>::get() << endl;
        cout << TTypeName<set<
                                multimap<double, pair<MyFooClass, MyNS::MyBarClass2>>>>::get()
                 << endl;
}
//! [example typename]
 
int main(int argc, char** argv)
{
        try
        {
                Test_TypeName();
                return 0;
        }
        catch (std::exception& e)
        {
                std::cout << "Exception: " << e.what() << std::endl;
                return -1;
        }
}