136 lines
4.2 KiB
C++
136 lines
4.2 KiB
C++
// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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// vi: set et ts=4 sw=4 sts=4:
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/*
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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Consult the COPYING file in the top-level source directory of this
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module for the precise wording of the license and the list of
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copyright holders.
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*/
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/*!
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* \file
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*
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* \brief This is a simple test that illustrates how to use the Opm::ConditionalStorage
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* class.
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*/
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#include "config.h"
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#include <opm/material/common/ConditionalStorage.hpp>
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#include <stdexcept>
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#include <string>
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#include <cstdlib>
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#include <type_traits>
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template <bool foo>
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class EnsureCompileTimeConstant
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{};
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class IAmAnIslandLeaveMeAlone
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{
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public:
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IAmAnIslandLeaveMeAlone(int, int)
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{}
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IAmAnIslandLeaveMeAlone& operator=(const IAmAnIslandLeaveMeAlone&) = delete;
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};
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int main()
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{
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{
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typedef Opm::ConditionalStorage<true, std::string> ConditionalTrueString;
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ConditionalTrueString foo; // default constructor
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ConditionalTrueString bar("hello"); // construct using arguments
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ConditionalTrueString baz(bar); // copy constructor
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[[maybe_unused]] EnsureCompileTimeConstant<ConditionalTrueString::condition> hello;
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if (!std::is_same<typename ConditionalTrueString::type, std::string>::value)
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// something went wrong with the exported type
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std::abort();
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if (ConditionalTrueString::condition != true)
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// the condition is not exported correctly
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std::abort();
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if (*bar != "hello")
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// value constructor did not work
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std::abort();
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if (*bar != *baz)
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// copy constructor did not work
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std::abort();
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if (foo->size() != 0)
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// default constructor did not work
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std::abort();
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// the assignment operator for the "wrapper" object should work
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foo = baz;
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if (*foo != *baz)
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// assignment operator did not work
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std::abort();
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}
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{
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typedef Opm::ConditionalStorage<false, std::string> ConditionalFalseString;
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ConditionalFalseString foo; // default constructor
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ConditionalFalseString bar("hello"); // construct by value
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[[maybe_unused]] ConditionalFalseString baz(bar); // copy constructor
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[[maybe_unused]] EnsureCompileTimeConstant<ConditionalFalseString::condition> hello;
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if (!std::is_same<typename ConditionalFalseString::type, std::string>::value)
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// something went wrong with the exported type
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std::abort();
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if (ConditionalFalseString::condition != false)
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// the condition is not exported correctly
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std::abort();
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// the assignment operator for the "wrapper" object should always work
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baz = foo;
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try {
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*bar;
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// this is supposed to throw an std::logic_error
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std::abort();
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}
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catch (std::logic_error &) {}
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try {
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foo->size();
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// this is supposed to throw an std::logic_error
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std::abort();
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}
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catch (std::logic_error &) {}
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}
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{
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typedef Opm::ConditionalStorage<true, IAmAnIslandLeaveMeAlone> ConditionalTrueIsland;
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[[maybe_unused]] ConditionalTrueIsland foo(1, 2);
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// ConditionalTrueIsland OPM_UNUSED bar; // compiler fails because of missing default ctor
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}
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{
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typedef Opm::ConditionalStorage<false, IAmAnIslandLeaveMeAlone> ConditionalFalseIsland;
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[[maybe_unused]] ConditionalFalseIsland foo(1, 2);
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// ConditionalFalseIsland OPM_UNUSED bar; // compiler fails because of missing default ctor
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}
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return 0;
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}
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