GSL/tests/index_test.cpp
Pawel Dac 2e4213a11a add gsl::index typedef
cppcoreguidelines referece: ES.107: Don't use unsigned for subscripts, prefer gsl::index
https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Res-subscripts
2018-02-15 00:33:17 +01:00

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///////////////////////////////////////////////////////////////////////////////
//
// 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 <catch/catch.hpp>
#include <type_traits> // for is_same
#include <gsl/index> // for index
TEST_CASE("sanity check for gsl::index typedef")
{
static_assert(std::is_same<gsl::index, std::ptrdiff_t>::value,
"gsl::index represents wrong arithmetic type");
}