2 * This file is part of the GROMACS molecular simulation package.
4 * Copyright (c) 2018,2019, by the GROMACS development team, led by
5 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 * and including many others, as listed in the AUTHORS file in the
7 * top-level source directory and at http://www.gromacs.org.
9 * GROMACS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
14 * GROMACS is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with GROMACS; if not, see
21 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 * If you want to redistribute modifications to GROMACS, please
25 * consider that scientific software is very special. Version
26 * control is crucial - bugs must be traceable. We will be happy to
27 * consider code for inclusion in the official distribution, but
28 * derived work must not be called official GROMACS. Details are found
29 * in the README & COPYING files - if they are missing, get the
30 * official version at http://www.gromacs.org.
32 * To help us fund GROMACS development, we humbly ask that you cite
33 * the research papers on the package. Check out http://www.gromacs.org.
36 * \brief Tests for pointers.h, e.g. gmx::compat::not_null
38 * \author Mark Abraham <mark.j.abraham@gmail.com>
39 * \ingroup module_compat
43 #include "gromacs/compat/pointers.h"
48 #include <gtest/gtest.h>
58 TEST(NotNullConstruction, Works)
60 // shared_ptr<int> is nullptr assignable
61 not_null<std::shared_ptr<int>> sharedPointer(std::make_shared<int>(10));
64 /* The workaround here is needed because the intel implementation
65 * will not trigger the assert when using the pointer without
66 * a valid object. This was needed due to an internal error
67 * being triggered instead with the compiler under this condition.
69 # if !defined(__INTEL_COMPILER) || !(__INTEL_COMPILER == 1800 && __INTEL_COMPILER_UPDATE == 0)
70 int* nullPointer = nullptr;
71 EXPECT_DEATH_IF_SUPPORTED(not_null<int*> invalidNullPointer(nullPointer), "");
76 int* validPointer = &value;
78 not_null<int*> validNotNullPointer(validPointer);
79 GMX_UNUSED_VALUE(validNotNullPointer);
82 not_null<int*> validNotNullPointer = not_null<int*>(validPointer);
83 GMX_UNUSED_VALUE(validNotNullPointer);
87 TEST(NotNullCasting, Works)
92 struct MyDerived : public MyBase
103 not_null<Unrelated*> u{ &unrelated };
105 not_null<MyDerived*> p{ &derived };
106 not_null<MyBase*> q(&base);
107 // Allowed with heterogeneous copy constructor
110 not_null<Unrelated*> t(reinterpret_cast<Unrelated*>(p.get()));
111 EXPECT_EQ(reinterpret_cast<void*>(p.get()), reinterpret_cast<void*>(t.get()));
114 TEST(NotNullAssignment, Works)
117 not_null<int*> p(&i);
121 TEST(MakeNotNull, Works)
126 const not_null<int*> x = make_not_null(&i);
128 not_null<int*> y = make_not_null(&i);
130 not_null<const int*> z = make_not_null(&i);
135 // TODO These should work, but the GSL version of
136 // make_not_null has an auto return type that we can't use
137 // here, so maybe the issue is there.
142 not_null<int *> x = make_not_null(p);
144 not_null<int *> y = make_not_null(p);
146 not_null<const int *> z = make_not_null(p);
152 std::unique_ptr<int> i = std::make_unique<int>(42);
154 const not_null<int*> x = make_not_null(i);
156 not_null<int*> y = make_not_null(i);
158 not_null<const int*> z = make_not_null(i);
163 std::unique_ptr<const int> i = std::make_unique<int>(42);
165 // not_null<int *> does not compile, as expected
166 not_null<const int*> z = make_not_null(i);
171 TEST(NotNull, WorksInContainers)
174 not_null<int*> p(&i);
176 std::vector<not_null<int*>> v;
178 EXPECT_EQ(*v.back(), 12);
181 // TODO We currently don't have infrastructure for checking that e.g.
182 // expected static assertions fire and calls to deleted functions do
183 // not compile. When we do, there are more tests that should be found
186 } // anonymous namespace
187 } // namespace compat