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  • /*---------------------------------------------------------------------------*\
      =========                 |
      \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
       \\    /   O peration     |
    
        \\  /    A nd           | Copyright (C) 2017-2018 OpenCFD Ltd.
    
         \\/     M anipulation  |
    -------------------------------------------------------------------------------
    License
        This file is part of OpenFOAM.
    
        OpenFOAM is free software: you can redistribute it and/or modify it
        under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 3 of the License, or
        (at your option) any later version.
    
        OpenFOAM 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 General Public License
        for more details.
    
        You should have received a copy of the GNU General Public License
        along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
    
    Description
        Test miscellaneous C++ templates/functionality.
    
    \*---------------------------------------------------------------------------*/
    
    #include "string.H"
    
    #include "macros.H"
    
    #include "IOstreams.H"
    #include "UList.H"
    #include "HashSet.H"
    
    #include <typeinfo>
    #include <type_traits>
    #include <utility>
    
    using namespace Foam;
    
    #define PRINT_TYPEID(arg)       \
        Info<< typeid(arg).name() << " <= typeid of " << STRING_QUOTE(arg) << nl
    
    
    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
    // Main program:
    
    int main(int argc, char *argv[])
    {
        Info<< "various declaration types" << nl << nl;
    
        PRINT_TYPEID(label);
        PRINT_TYPEID(decltype(UList<label>::value_type()));
        PRINT_TYPEID(decltype(std::declval<UList<label>>().cbegin()));
        PRINT_TYPEID(decltype(*(std::declval<UList<label>>().cbegin())));
        Info<< nl;
    
        PRINT_TYPEID(decltype(HashTable<label>::key_type()));
        PRINT_TYPEID(decltype(HashTable<label>::value_type()));
        // Not yet: PRINT_TYPEID(decltype(HashTable<label>::mapped_type()));
        PRINT_TYPEID(decltype(std::declval<HashTable<label>>().begin()));
        PRINT_TYPEID(decltype(std::declval<const HashTable<label>>().begin()));
        PRINT_TYPEID(decltype(*(std::declval<HashTable<label>>().begin())));
        PRINT_TYPEID(decltype(*(std::declval<const HashTable<label>>().begin())));
    
        PRINT_TYPEID(decltype(std::declval<const HashTable<label>>().keys()));
        Info<< nl;
    
        PRINT_TYPEID(decltype(HashSet<label>::key_type()));
        PRINT_TYPEID(decltype(HashSet<label>::value_type()));
        // Not yet: PRINT_TYPEID(decltype(HashSet<label>::mapped_type()));
        PRINT_TYPEID(decltype(std::declval<HashSet<label>>().begin()));
        PRINT_TYPEID(decltype(std::declval<const HashSet<label>>().begin()));
        PRINT_TYPEID(decltype(*(std::declval<HashSet<label>>().begin())));
        PRINT_TYPEID(decltype(*(std::declval<const HashSet<label>>().begin())));
        Info<< nl;
    
        Info << "\nEnd\n" << endl;
    
        return 0;
    }
    
    
    // ************************************************************************* //