mirror of
https://github.com/microsoft/GSL.git
synced 2024-11-25 09:11:58 -05:00
361 lines
9.7 KiB
C++
361 lines
9.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// 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 <gtest/gtest.h>
|
|
|
|
#include <gsl/gsl_util> // for narrow_cast, at
|
|
#include <gsl/span_ext> // for operator==, operator!=, make_span
|
|
|
|
#include <array> // for array
|
|
#include <iostream> // for cerr
|
|
#include <vector> // for vector
|
|
|
|
using namespace std;
|
|
using namespace gsl;
|
|
|
|
namespace
|
|
{
|
|
static constexpr char deathstring[] = "Expected Death";
|
|
} // namespace
|
|
|
|
TEST(span_ext_test, make_span_from_pointer_length_constructor)
|
|
{
|
|
std::set_terminate([] {
|
|
std::cerr << "Expected Death. from_pointer_length_constructor";
|
|
std::abort();
|
|
});
|
|
int arr[4] = {1, 2, 3, 4};
|
|
|
|
{
|
|
auto s = make_span(&arr[0], 2);
|
|
EXPECT_TRUE(s.size() == 2);
|
|
EXPECT_TRUE(s.data() == &arr[0]);
|
|
EXPECT_TRUE(s[0] == 1);
|
|
EXPECT_TRUE(s[1] == 2);
|
|
}
|
|
|
|
{
|
|
int* p = nullptr;
|
|
auto s = make_span(p, narrow_cast<span<int>::size_type>(0));
|
|
EXPECT_TRUE(s.size() == 0);
|
|
EXPECT_TRUE(s.data() == nullptr);
|
|
}
|
|
|
|
{
|
|
int* p = nullptr;
|
|
auto workaround_macro = [=]() { make_span(p, 2); };
|
|
EXPECT_DEATH(workaround_macro(), deathstring);
|
|
}
|
|
}
|
|
|
|
TEST(span_ext_test, make_span_from_pointer_pointer_construction)
|
|
{
|
|
int arr[4] = {1, 2, 3, 4};
|
|
|
|
{
|
|
auto s = make_span(&arr[0], &arr[2]);
|
|
EXPECT_TRUE(s.size() == 2);
|
|
EXPECT_TRUE(s.data() == &arr[0]);
|
|
EXPECT_TRUE(s[0] == 1);
|
|
EXPECT_TRUE(s[1] == 2);
|
|
}
|
|
|
|
{
|
|
auto s = make_span(&arr[0], &arr[0]);
|
|
EXPECT_TRUE(s.size() == 0);
|
|
EXPECT_TRUE(s.data() == &arr[0]);
|
|
}
|
|
|
|
{
|
|
int* p = nullptr;
|
|
auto s = make_span(p, p);
|
|
EXPECT_TRUE(s.size() == 0);
|
|
EXPECT_TRUE(s.data() == nullptr);
|
|
}
|
|
}
|
|
|
|
TEST(span_ext_test, make_span_from_array_constructor)
|
|
{
|
|
int arr[5] = {1, 2, 3, 4, 5};
|
|
int arr2d[2][3] = {1, 2, 3, 4, 5, 6};
|
|
int arr3d[2][3][2] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
|
|
|
|
{
|
|
const auto s = make_span(arr);
|
|
EXPECT_TRUE(s.size() == 5);
|
|
EXPECT_TRUE(s.data() == std::addressof(arr[0]));
|
|
}
|
|
|
|
{
|
|
const auto s = make_span(std::addressof(arr2d[0]), 1);
|
|
EXPECT_TRUE(s.size() == 1);
|
|
EXPECT_TRUE(s.data() == std::addressof(arr2d[0]));
|
|
}
|
|
|
|
{
|
|
const auto s = make_span(std::addressof(arr3d[0]), 1);
|
|
EXPECT_TRUE(s.size() == 1);
|
|
EXPECT_TRUE(s.data() == std::addressof(arr3d[0]));
|
|
}
|
|
}
|
|
|
|
TEST(span_ext_test, make_span_from_dynamic_array_constructor)
|
|
{
|
|
double(*arr)[3][4] = new double[100][3][4];
|
|
|
|
{
|
|
auto s = make_span(&arr[0][0][0], 10);
|
|
EXPECT_TRUE(s.size() == 10);
|
|
EXPECT_TRUE(s.data() == &arr[0][0][0]);
|
|
}
|
|
|
|
delete[] arr;
|
|
}
|
|
|
|
TEST(span_ext_test, make_span_from_std_array_constructor)
|
|
{
|
|
std::array<int, 4> arr = {1, 2, 3, 4};
|
|
|
|
{
|
|
auto s = make_span(arr);
|
|
EXPECT_TRUE(s.size() == arr.size());
|
|
EXPECT_TRUE(s.data() == arr.data());
|
|
}
|
|
|
|
// This test checks for the bug found in gcc 6.1, 6.2, 6.3, 6.4, 6.5 7.1, 7.2, 7.3 - issue #590
|
|
{
|
|
span<int> s1 = make_span(arr);
|
|
|
|
static span<int> s2;
|
|
s2 = s1;
|
|
|
|
#if defined(__GNUC__) && __GNUC__ == 6 && (__GNUC_MINOR__ == 4 || __GNUC_MINOR__ == 5) && \
|
|
__GNUC_PATCHLEVEL__ == 0 && defined(__OPTIMIZE__)
|
|
// Known to be broken in gcc 6.4 and 6.5 with optimizations
|
|
// Issue in gcc: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83116
|
|
EXPECT_TRUE(s1.size() == 4);
|
|
EXPECT_TRUE(s2.size() == 0);
|
|
#else
|
|
EXPECT_TRUE(s1.size() == s2.size());
|
|
#endif
|
|
}
|
|
}
|
|
|
|
TEST(span_ext_test, make_span_from_const_std_array_constructor)
|
|
{
|
|
const std::array<int, 4> arr = {1, 2, 3, 4};
|
|
|
|
{
|
|
auto s = make_span(arr);
|
|
EXPECT_TRUE(s.size() == arr.size());
|
|
EXPECT_TRUE(s.data() == arr.data());
|
|
}
|
|
}
|
|
|
|
TEST(span_ext_test, make_span_from_std_array_const_constructor)
|
|
{
|
|
std::array<const int, 4> arr = {1, 2, 3, 4};
|
|
|
|
{
|
|
auto s = make_span(arr);
|
|
EXPECT_TRUE(s.size() == arr.size());
|
|
EXPECT_TRUE(s.data() == arr.data());
|
|
}
|
|
}
|
|
|
|
TEST(span_ext_test, make_span_from_container_constructor)
|
|
{
|
|
std::vector<int> v = {1, 2, 3};
|
|
const std::vector<int> cv = v;
|
|
|
|
{
|
|
auto s = make_span(v);
|
|
EXPECT_TRUE(s.size() == v.size());
|
|
EXPECT_TRUE(s.data() == v.data());
|
|
|
|
auto cs = make_span(cv);
|
|
EXPECT_TRUE(cs.size() == cv.size());
|
|
EXPECT_TRUE(cs.data() == cv.data());
|
|
}
|
|
}
|
|
|
|
TEST(span_test, interop_with_gsl_at)
|
|
{
|
|
int arr[5] = {1, 2, 3, 4, 5};
|
|
span<int> s{arr};
|
|
EXPECT_TRUE(at(s, 0) == 1);
|
|
EXPECT_TRUE(at(s, 1) == 2);
|
|
}
|
|
|
|
TEST(span_ext_test, iterator_free_functions)
|
|
{
|
|
int a[] = {1, 2, 3, 4};
|
|
span<int> s{a};
|
|
|
|
EXPECT_TRUE((std::is_same<decltype(s.begin()), decltype(begin(s))>::value));
|
|
EXPECT_TRUE((std::is_same<decltype(s.end()), decltype(end(s))>::value));
|
|
|
|
EXPECT_TRUE((std::is_same<decltype(s.cbegin()), decltype(cbegin(s))>::value));
|
|
EXPECT_TRUE((std::is_same<decltype(s.cend()), decltype(cend(s))>::value));
|
|
|
|
EXPECT_TRUE((std::is_same<decltype(s.rbegin()), decltype(rbegin(s))>::value));
|
|
EXPECT_TRUE((std::is_same<decltype(s.rend()), decltype(rend(s))>::value));
|
|
|
|
EXPECT_TRUE((std::is_same<decltype(s.crbegin()), decltype(crbegin(s))>::value));
|
|
EXPECT_TRUE((std::is_same<decltype(s.crend()), decltype(crend(s))>::value));
|
|
|
|
EXPECT_TRUE(s.begin() == begin(s));
|
|
EXPECT_TRUE(s.end() == end(s));
|
|
|
|
EXPECT_TRUE(s.cbegin() == cbegin(s));
|
|
EXPECT_TRUE(s.cend() == cend(s));
|
|
|
|
EXPECT_TRUE(s.rbegin() == rbegin(s));
|
|
EXPECT_TRUE(s.rend() == rend(s));
|
|
|
|
EXPECT_TRUE(s.crbegin() == crbegin(s));
|
|
EXPECT_TRUE(s.crend() == crend(s));
|
|
}
|
|
|
|
TEST(span_ext_test, ssize_free_function)
|
|
{
|
|
int a[] = {1, 2, 3, 4};
|
|
span<int> s{a};
|
|
|
|
EXPECT_FALSE((std::is_same<decltype(s.size()), decltype(ssize(s))>::value));
|
|
EXPECT_TRUE(s.size() == static_cast<std::size_t>(ssize(s)));
|
|
}
|
|
|
|
TEST(span_ext_test, comparison_operators)
|
|
{
|
|
{
|
|
span<int> s1;
|
|
span<int> s2;
|
|
EXPECT_TRUE(s1 == s2);
|
|
EXPECT_FALSE(s1 != s2);
|
|
EXPECT_FALSE(s1 < s2);
|
|
EXPECT_TRUE(s1 <= s2);
|
|
EXPECT_FALSE(s1 > s2);
|
|
EXPECT_TRUE(s1 >= s2);
|
|
EXPECT_TRUE(s2 == s1);
|
|
EXPECT_FALSE(s2 != s1);
|
|
EXPECT_FALSE(s2 != s1);
|
|
EXPECT_TRUE(s2 <= s1);
|
|
EXPECT_FALSE(s2 > s1);
|
|
EXPECT_TRUE(s2 >= s1);
|
|
}
|
|
|
|
{
|
|
int arr[] = {2, 1};
|
|
span<int> s1 = arr;
|
|
span<int> s2 = arr;
|
|
|
|
EXPECT_TRUE(s1 == s2);
|
|
EXPECT_FALSE(s1 != s2);
|
|
EXPECT_FALSE(s1 < s2);
|
|
EXPECT_TRUE(s1 <= s2);
|
|
EXPECT_FALSE(s1 > s2);
|
|
EXPECT_TRUE(s1 >= s2);
|
|
EXPECT_TRUE(s2 == s1);
|
|
EXPECT_FALSE(s2 != s1);
|
|
EXPECT_FALSE(s2 < s1);
|
|
EXPECT_TRUE(s2 <= s1);
|
|
EXPECT_FALSE(s2 > s1);
|
|
EXPECT_TRUE(s2 >= s1);
|
|
}
|
|
|
|
{
|
|
int arr[] = {2, 1}; // bigger
|
|
|
|
span<int> s1;
|
|
span<int> s2 = arr;
|
|
|
|
EXPECT_TRUE(s1 != s2);
|
|
EXPECT_TRUE(s2 != s1);
|
|
EXPECT_FALSE(s1 == s2);
|
|
EXPECT_FALSE(s2 == s1);
|
|
EXPECT_TRUE(s1 < s2);
|
|
EXPECT_FALSE(s2 < s1);
|
|
EXPECT_TRUE(s1 <= s2);
|
|
EXPECT_FALSE(s2 <= s1);
|
|
EXPECT_TRUE(s2 > s1);
|
|
EXPECT_FALSE(s1 > s2);
|
|
EXPECT_TRUE(s2 >= s1);
|
|
EXPECT_FALSE(s1 >= s2);
|
|
}
|
|
|
|
{
|
|
int arr1[] = {1, 2};
|
|
int arr2[] = {1, 2};
|
|
span<int> s1 = arr1;
|
|
span<int> s2 = arr2;
|
|
|
|
EXPECT_TRUE(s1 == s2);
|
|
EXPECT_FALSE(s1 != s2);
|
|
EXPECT_FALSE(s1 < s2);
|
|
EXPECT_TRUE(s1 <= s2);
|
|
EXPECT_FALSE(s1 > s2);
|
|
EXPECT_TRUE(s1 >= s2);
|
|
EXPECT_TRUE(s2 == s1);
|
|
EXPECT_FALSE(s2 != s1);
|
|
EXPECT_FALSE(s2 < s1);
|
|
EXPECT_TRUE(s2 <= s1);
|
|
EXPECT_FALSE(s2 > s1);
|
|
EXPECT_TRUE(s2 >= s1);
|
|
}
|
|
|
|
{
|
|
int arr[] = {1, 2, 3};
|
|
|
|
span<int> s1 = {&arr[0], 2}; // shorter
|
|
span<int> s2 = arr; // longer
|
|
|
|
EXPECT_TRUE(s1 != s2);
|
|
EXPECT_TRUE(s2 != s1);
|
|
EXPECT_FALSE(s1 == s2);
|
|
EXPECT_FALSE(s2 == s1);
|
|
EXPECT_TRUE(s1 < s2);
|
|
EXPECT_FALSE(s2 < s1);
|
|
EXPECT_TRUE(s1 <= s2);
|
|
EXPECT_FALSE(s2 <= s1);
|
|
EXPECT_TRUE(s2 > s1);
|
|
EXPECT_FALSE(s1 > s2);
|
|
EXPECT_TRUE(s2 >= s1);
|
|
EXPECT_FALSE(s1 >= s2);
|
|
}
|
|
|
|
{
|
|
int arr1[] = {1, 2}; // smaller
|
|
int arr2[] = {2, 1}; // bigger
|
|
|
|
span<int> s1 = arr1;
|
|
span<int> s2 = arr2;
|
|
|
|
EXPECT_TRUE(s1 != s2);
|
|
EXPECT_TRUE(s2 != s1);
|
|
EXPECT_FALSE(s1 == s2);
|
|
EXPECT_FALSE(s2 == s1);
|
|
EXPECT_TRUE(s1 < s2);
|
|
EXPECT_FALSE(s2 < s1);
|
|
EXPECT_TRUE(s1 <= s2);
|
|
EXPECT_FALSE(s2 <= s1);
|
|
EXPECT_TRUE(s2 > s1);
|
|
EXPECT_FALSE(s1 > s2);
|
|
EXPECT_TRUE(s2 >= s1);
|
|
EXPECT_FALSE(s1 >= s2);
|
|
}
|
|
}
|