GSL/tests/bounds_tests.cpp

///////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
//
// This code is licensed under the MIT License (MIT).
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////

#include <UnitTest++/UnitTest++.h>
#include <array_view.h>
#include <vector>

using namespace std;
using namespace gsl;
;

namespace
{
void use(unsigned int&)
{
}
}

SUITE(bounds_test)
{
    TEST(basic_bounds)
    {
        for (auto point : static_bounds<unsigned int, dynamic_range, 3, 4>{ 2 })
        {
            for (unsigned int j = 0; j < decltype(point)::rank; j++)
            {
                use(j);
                use(point[j]);
            }
        }
    }

    TEST(bounds_basic)
    {
        static_bounds<size_t, 3, 4, 5> b;
        auto a = b.slice();
        static_bounds<size_t, 4, dynamic_range, 2> x{ 4 };
        x.slice().slice();
    }

    TEST(arrayview_iterator)
    {
        static_bounds<size_t, 4, dynamic_range, 2> bounds{ 3 };

        auto itr = bounds.begin();

#ifdef CONFIRM_COMPILATION_ERRORS
        array_view<int, 4, dynamic_range, 2> av(nullptr, bounds);

        auto itr2 = av.cbegin();

        for (auto& v : av)
        {
            v = 4;
        }
        fill(av.begin(), av.end(), 0);
#endif
    }

    TEST(bounds_convertible)
    {
        static_bounds<size_t, 7, 4, 2> b1;
        static_bounds<size_t, 7, dynamic_range, 2> b2 = b1;

#ifdef CONFIRM_COMPILATION_ERRORS
        static_bounds<size_t, 7, dynamic_range, 1> b4 = b2;
#endif

        static_bounds<size_t, dynamic_range, dynamic_range, dynamic_range> b3 = b1;
        static_bounds<int, 7, 4, 2> b4 = b3;

        static_bounds<size_t, dynamic_range> b11;

        static_bounds<size_t, dynamic_range> b5;
        static_bounds<size_t, 34> b6;

        b5 = static_bounds<size_t, 20>();
        CHECK_THROW(b6 = b5, fail_fast);
        b5 = static_bounds<size_t, 34>();
        b6 = b5;

        CHECK(b5 == b6);
        CHECK(b5.size() == b6.size());
    }
}

int main(int, const char* [])
{
    return UnitTest::RunAllTests();
}