mirror of
https://github.com/microsoft/GSL.git
synced 2024-11-25 01:01:58 -05:00
remove multi_span (#958)
This commit is contained in:
Jordan Maples [MSFT]
GitHub
parent
ec6cd75d57
commit
a6cef6bc6c
@ -21,7 +21,6 @@
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#include <gsl/assert> // Ensures/Expects
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#include <gsl/byte> // byte
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#include <gsl/pointers> // owner, not_null
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#include <gsl/multi_span> // multi_span, strided_span...
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#include <gsl/span> // span
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#include <gsl/string_span> // zstring, string_span, zstring_builder...
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#include <gsl/util> // finally()/narrow_cast()...
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File diff suppressed because it is too large
Load Diff
@ -167,11 +167,8 @@ endfunction()
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add_gsl_test(span_tests)
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add_gsl_test(span_ext_tests)
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add_gsl_test(span_compatibility_tests)
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add_gsl_test(multi_span_tests)
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add_gsl_test(strided_span_tests)
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add_gsl_test(string_span_tests)
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add_gsl_test(at_tests)
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add_gsl_test(bounds_tests)
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add_gsl_test(notnull_tests)
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add_gsl_test(assertion_tests)
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add_gsl_test(utils_tests)
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@ -1,102 +0,0 @@
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///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
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//
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// This code is licensed under the MIT License (MIT).
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include <gtest/gtest.h>
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#include <gsl/multi_span> // for static_bounds, static_bounds_dynamic_range_t
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#include <cstddef> // for ptrdiff_t, size_t
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using namespace std;
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using namespace gsl;
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namespace
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{
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void use(std::ptrdiff_t&) {}
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}
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TEST(bounds_tests, basic_bounds)
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{
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for (auto point : static_bounds<dynamic_range, 3, 4>{2}) {
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for (decltype(point)::size_type j = 0;
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j < static_cast<decltype(point)::size_type>(decltype(point)::rank); j++)
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{
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use(j);
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use(point[static_cast<std::size_t>(j)]);
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}
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}
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}
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TEST(bounds_tests, bounds_basic)
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{
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static_bounds<3, 4, 5> b;
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const auto a = b.slice();
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(void) a;
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static_bounds<4, dynamic_range, 2> x{4};
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x.slice().slice();
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}
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TEST(bounds_tests, arrayview_iterator)
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{
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static_bounds<4, dynamic_range, 2> bounds{3};
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const auto itr = bounds.begin();
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(void) itr;
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#ifdef CONFIRM_COMPILATION_ERRORS
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multi_span<int, 4, dynamic_range, 2> av(nullptr, bounds);
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auto itr2 = av.cbegin();
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for (auto& v : av) {
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v = 4;
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}
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fill(av.begin(), av.end(), 0);
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#endif
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}
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TEST(bounds_tests, bounds_convertible)
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{
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static_bounds<7, 4, 2> b1;
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static_bounds<7, dynamic_range, 2> b2 = b1;
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(void) b2;
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#ifdef CONFIRM_COMPILATION_ERRORS
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static_bounds<7, dynamic_range, 1> b4 = b2;
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#endif
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static_bounds<dynamic_range, dynamic_range, dynamic_range> b3 = b1;
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static_bounds<7, 4, 2> b4 = b3;
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(void) b4;
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static_bounds<dynamic_range> b5;
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static_bounds<34> b6;
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std::set_terminate([] {
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std::cerr << "Expected Death. bounds_convertible";
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std::abort();
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});
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b5 = static_bounds<20>();
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EXPECT_DEATH(b6 = b5, ".*");
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b5 = static_bounds<34>();
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b6 = b5;
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EXPECT_TRUE(b5 == b6);
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EXPECT_TRUE(b5.size() == b6.size());
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}
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#ifdef CONFIRM_COMPILATION_ERRORS
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copy(src_span_static, dst_span_static);
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#endif
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File diff suppressed because it is too large
Load Diff
@ -1,790 +0,0 @@
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///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2015 Microsoft Corporation. All rights reserved.
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//
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// This code is licensed under the MIT License (MIT).
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include <gtest/gtest.h>
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#include <gsl/byte> // for byte
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#include <gsl/util> // for narrow_cast
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#include <gsl/multi_span> // for strided_span, index, multi_span, strided_...
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#include <iostream> // for size_t
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#include <iterator> // for begin, end
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#include <numeric> // for iota
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#include <type_traits> // for integral_constant<>::value, is_convertible
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#include <vector> // for vector
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using namespace std;
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using namespace gsl;
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namespace
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{
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static constexpr char deathstring[] = "Expected Death";
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struct BaseClass
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{
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};
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struct DerivedClass : BaseClass
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{
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};
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GSL_SUPPRESS(con.4) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds.1) // NO-FORMAT: attribute
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void iterate_every_other_element(multi_span<int, dynamic_range> av)
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{
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// pick every other element
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auto length = av.size() / 2;
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#if defined(_MSC_VER) && _MSC_VER > 1800
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auto bounds = strided_bounds<1>({length}, {2});
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#else
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auto bounds = strided_bounds<1>(multi_span_index<1>{length}, multi_span_index<1>{2});
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#endif
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strided_span<int, 1> strided(&av.data()[1], av.size() - 1, bounds);
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EXPECT_TRUE(strided.size() == length);
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EXPECT_TRUE(strided.bounds().index_bounds()[0] == length);
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for (auto i = 0; i < strided.size(); ++i) {
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EXPECT_TRUE(strided[i] == av[2 * i + 1]);
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}
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int idx = 0;
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for (auto num : strided) {
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EXPECT_TRUE(num == av[2 * idx + 1]);
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idx++;
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}
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}
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GSL_SUPPRESS(con.4) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds.4) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds.2) // NO-FORMAT: attribute // TODO: does not work
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void iterate_second_slice(multi_span<int, dynamic_range, dynamic_range, dynamic_range> av)
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{
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const int expected[6] = {2, 3, 10, 11, 18, 19};
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auto section = av.section({0, 1, 0}, {3, 1, 2});
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for (auto i = 0; i < section.extent<0>(); ++i) {
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for (auto j = 0; j < section.extent<1>(); ++j)
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for (auto k = 0; k < section.extent<2>(); ++k) {
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auto idx = multi_span_index<3>{i, j, k}; // avoid braces in the EXPECT_TRUE macro
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EXPECT_TRUE(section[idx] == expected[2 * i + 2 * j + k]);
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}
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}
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for (auto i = 0; i < section.extent<0>(); ++i) {
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for (auto j = 0; j < section.extent<1>(); ++j)
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for (auto k = 0; k < section.extent<2>(); ++k)
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EXPECT_TRUE(section[i][j][k] == expected[2 * i + 2 * j + k]);
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}
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int i = 0;
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for (const auto num : section) {
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EXPECT_TRUE(num == expected[i]);
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i++;
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}
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}
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}
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TEST(strided_span_tests, span_section_test)
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{
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int a[30][4][5];
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const auto av = as_multi_span(a);
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const auto sub = av.section({15, 0, 0}, gsl::multi_span_index<3>{2, 2, 2});
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const auto subsub = sub.section({1, 0, 0}, gsl::multi_span_index<3>{1, 1, 1});
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(void) subsub;
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}
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TEST(strided_span_tests, span_section)
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{
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std::vector<int> data(5 * 10);
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std::iota(begin(data), end(data), 0);
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const multi_span<int, 5, 10> av = as_multi_span(multi_span<int>{data}, dim<5>(), dim<10>());
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const strided_span<int, 2> av_section_1 = av.section({1, 2}, {3, 4});
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EXPECT_TRUE(!av_section_1.empty());
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EXPECT_TRUE((av_section_1[{0, 0}] == 12));
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EXPECT_TRUE((av_section_1[{0, 1}] == 13));
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EXPECT_TRUE((av_section_1[{1, 0}] == 22));
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EXPECT_TRUE((av_section_1[{2, 3}] == 35));
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const strided_span<int, 2> av_section_2 = av_section_1.section({1, 2}, {2, 2});
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EXPECT_TRUE(!av_section_2.empty());
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EXPECT_TRUE((av_section_2[{0, 0}] == 24));
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EXPECT_TRUE((av_section_2[{0, 1}] == 25));
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EXPECT_TRUE((av_section_2[{1, 0}] == 34));
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}
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TEST(strided_span_tests, strided_span_constructors)
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{
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// EXPECT_TRUE stride constructor
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{
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int arr[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
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const int carr[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
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strided_span<int, 1> sav1{arr, {{9}, {1}}}; // T -> T
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EXPECT_TRUE(sav1.bounds().index_bounds() == multi_span_index<1>{9});
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EXPECT_TRUE(sav1.bounds().stride() == 1);
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EXPECT_TRUE(sav1[0] == 1);
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EXPECT_TRUE(sav1[8] == 9);
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strided_span<const int, 1> sav2{carr, {{4}, {2}}}; // const T -> const T
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EXPECT_TRUE(sav2.bounds().index_bounds() == multi_span_index<1>{4});
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EXPECT_TRUE(sav2.bounds().strides() == multi_span_index<1>{2});
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EXPECT_TRUE(sav2[0] == 1);
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EXPECT_TRUE(sav2[3] == 7);
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strided_span<int, 2> sav3{arr, {{2, 2}, {6, 2}}}; // T -> const T
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EXPECT_TRUE((sav3.bounds().index_bounds() == multi_span_index<2>{2, 2}));
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EXPECT_TRUE((sav3.bounds().strides() == multi_span_index<2>{6, 2}));
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EXPECT_TRUE((sav3[{0, 0}]) == 1);
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EXPECT_TRUE((sav3[{0, 1}]) == 3);
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EXPECT_TRUE((sav3[{1, 0}]) == 7);
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}
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// EXPECT_TRUE multi_span constructor
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{
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int arr[] = {1, 2};
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// From non-cv-qualified source
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{
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const multi_span<int> src = arr;
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strided_span<int, 1> sav{src, {2, 1}};
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EXPECT_TRUE(sav.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav[1] == 2);
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#if defined(_MSC_VER) && _MSC_VER > 1800
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// strided_span<const int, 1> sav_c{ {src}, {2, 1} };
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strided_span<const int, 1> sav_c{multi_span<const int>{src},
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strided_bounds<1>{2, 1}};
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#else
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strided_span<const int, 1> sav_c{multi_span<const int>{src},
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strided_bounds<1>{2, 1}};
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#endif
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EXPECT_TRUE(sav_c.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_c.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_c[1] == 2);
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#if defined(_MSC_VER) && _MSC_VER > 1800
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strided_span<volatile int, 1> sav_v{src, {2, 1}};
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#else
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strided_span<volatile int, 1> sav_v{multi_span<volatile int>{src},
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strided_bounds<1>{2, 1}};
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#endif
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EXPECT_TRUE(sav_v.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_v.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_v[1] == 2);
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#if defined(_MSC_VER) && _MSC_VER > 1800
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strided_span<const volatile int, 1> sav_cv{src, {2, 1}};
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#else
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strided_span<const volatile int, 1> sav_cv{multi_span<const volatile int>{src},
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strided_bounds<1>{2, 1}};
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#endif
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EXPECT_TRUE(sav_cv.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_cv.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_cv[1] == 2);
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}
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// From const-qualified source
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{
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const multi_span<const int> src{arr};
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strided_span<const int, 1> sav_c{src, {2, 1}};
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EXPECT_TRUE(sav_c.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_c.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_c[1] == 2);
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#if defined(_MSC_VER) && _MSC_VER > 1800
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strided_span<const volatile int, 1> sav_cv{src, {2, 1}};
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#else
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strided_span<const volatile int, 1> sav_cv{multi_span<const volatile int>{src},
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strided_bounds<1>{2, 1}};
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#endif
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EXPECT_TRUE(sav_cv.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_cv.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_cv[1] == 2);
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}
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// From volatile-qualified source
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{
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const multi_span<volatile int> src{arr};
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strided_span<volatile int, 1> sav_v{src, {2, 1}};
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EXPECT_TRUE(sav_v.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_v.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_v[1] == 2);
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#if defined(_MSC_VER) && _MSC_VER > 1800
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strided_span<const volatile int, 1> sav_cv{src, {2, 1}};
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#else
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strided_span<const volatile int, 1> sav_cv{multi_span<const volatile int>{src},
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strided_bounds<1>{2, 1}};
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#endif
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EXPECT_TRUE(sav_cv.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_cv.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_cv[1] == 2);
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}
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// From cv-qualified source
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{
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const multi_span<const volatile int> src{arr};
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strided_span<const volatile int, 1> sav_cv{src, {2, 1}};
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EXPECT_TRUE(sav_cv.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav_cv.bounds().strides() == multi_span_index<1>{1});
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EXPECT_TRUE(sav_cv[1] == 2);
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}
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}
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// EXPECT_TRUE const-casting constructor
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{
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int arr[2] = {4, 5};
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const multi_span<int, 2> av(arr, 2);
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multi_span<const int, 2> av2{av};
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EXPECT_TRUE(av2[1] == 5);
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static_assert(
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std::is_convertible<const multi_span<int, 2>, multi_span<const int, 2>>::value,
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"ctor is not implicit!");
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const strided_span<int, 1> src{arr, {2, 1}};
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strided_span<const int, 1> sav{src};
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EXPECT_TRUE(sav.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav.bounds().stride() == 1);
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EXPECT_TRUE(sav[1] == 5);
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static_assert(
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std::is_convertible<const strided_span<int, 1>, strided_span<const int, 1>>::value,
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"ctor is not implicit!");
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}
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// EXPECT_TRUE copy constructor
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{
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int arr1[2] = {3, 4};
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const strided_span<int, 1> src1{arr1, {2, 1}};
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strided_span<int, 1> sav1{src1};
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EXPECT_TRUE(sav1.bounds().index_bounds() == multi_span_index<1>{2});
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EXPECT_TRUE(sav1.bounds().stride() == 1);
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EXPECT_TRUE(sav1[0] == 3);
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int arr2[6] = {1, 2, 3, 4, 5, 6};
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const strided_span<const int, 2> src2{arr2, {{3, 2}, {2, 1}}};
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strided_span<const int, 2> sav2{src2};
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EXPECT_TRUE((sav2.bounds().index_bounds() == multi_span_index<2>{3, 2}));
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EXPECT_TRUE((sav2.bounds().strides() == multi_span_index<2>{2, 1}));
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EXPECT_TRUE((sav2[{0, 0}]) == 1);
|
||||
EXPECT_TRUE((sav2[{2, 0}]) == 5);
|
||||
}
|
||||
|
||||
// EXPECT_TRUE const-casting assignment operator
|
||||
{
|
||||
int arr1[2] = {1, 2};
|
||||
int arr2[6] = {3, 4, 5, 6, 7, 8};
|
||||
|
||||
const strided_span<int, 1> src{arr1, {{2}, {1}}};
|
||||
strided_span<const int, 1> sav{arr2, {{3}, {2}}};
|
||||
strided_span<const int, 1>& sav_ref = (sav = src);
|
||||
EXPECT_TRUE(sav.bounds().index_bounds() == multi_span_index<1>{2});
|
||||
EXPECT_TRUE(sav.bounds().strides() == multi_span_index<1>{1});
|
||||
EXPECT_TRUE(sav[0] == 1);
|
||||
EXPECT_TRUE(&sav_ref == &sav);
|
||||
}
|
||||
|
||||
// EXPECT_TRUE copy assignment operator
|
||||
{
|
||||
int arr1[2] = {3, 4};
|
||||
int arr1b[1] = {0};
|
||||
const strided_span<int, 1> src1{arr1, {2, 1}};
|
||||
strided_span<int, 1> sav1{arr1b, {1, 1}};
|
||||
strided_span<int, 1>& sav1_ref = (sav1 = src1);
|
||||
EXPECT_TRUE(sav1.bounds().index_bounds() == multi_span_index<1>{2});
|
||||
EXPECT_TRUE(sav1.bounds().strides() == multi_span_index<1>{1});
|
||||
EXPECT_TRUE(sav1[0] == 3);
|
||||
EXPECT_TRUE(&sav1_ref == &sav1);
|
||||
|
||||
const int arr2[6] = {1, 2, 3, 4, 5, 6};
|
||||
const int arr2b[1] = {0};
|
||||
const strided_span<const int, 2> src2{arr2, {{3, 2}, {2, 1}}};
|
||||
strided_span<const int, 2> sav2{arr2b, {{1, 1}, {1, 1}}};
|
||||
strided_span<const int, 2>& sav2_ref = (sav2 = src2);
|
||||
EXPECT_TRUE((sav2.bounds().index_bounds() == multi_span_index<2>{3, 2}));
|
||||
EXPECT_TRUE((sav2.bounds().strides() == multi_span_index<2>{2, 1}));
|
||||
EXPECT_TRUE((sav2[{0, 0}] == 1));
|
||||
EXPECT_TRUE((sav2[{2, 0}] == 5));
|
||||
EXPECT_TRUE(&sav2_ref == &sav2);
|
||||
}
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, strided_span_slice)
|
||||
{
|
||||
std::vector<int> data(5 * 10);
|
||||
std::iota(begin(data), end(data), 0);
|
||||
const multi_span<int, 5, 10> src =
|
||||
as_multi_span(multi_span<int>{data}, dim<5>(), dim<10>());
|
||||
|
||||
const strided_span<int, 2> sav{src, {{5, 10}, {10, 1}}};
|
||||
#ifdef CONFIRM_COMPILATION_ERRORS
|
||||
const strided_span<const int, 2> csav{{src}, {{5, 10}, {10, 1}}};
|
||||
#endif
|
||||
const strided_span<const int, 2> csav{multi_span<const int, 5, 10>{src},
|
||||
{{5, 10}, {10, 1}}};
|
||||
|
||||
strided_span<int, 1> sav_sl = sav[2];
|
||||
EXPECT_TRUE(sav_sl[0] == 20);
|
||||
EXPECT_TRUE(sav_sl[9] == 29);
|
||||
|
||||
strided_span<const int, 1> csav_sl = sav[3];
|
||||
EXPECT_TRUE(csav_sl[0] == 30);
|
||||
EXPECT_TRUE(csav_sl[9] == 39);
|
||||
|
||||
EXPECT_TRUE(sav[4][0] == 40);
|
||||
EXPECT_TRUE(sav[4][9] == 49);
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, strided_span_column_major)
|
||||
{
|
||||
// strided_span may be used to accommodate more peculiar
|
||||
// use cases, such as column-major multidimensional array
|
||||
// (aka. "FORTRAN" layout).
|
||||
|
||||
int cm_array[3 * 5] = {1, 4, 7, 10, 13, 2, 5, 8, 11, 14, 3, 6, 9, 12, 15};
|
||||
strided_span<int, 2> cm_sav{cm_array, {{5, 3}, {1, 5}}};
|
||||
|
||||
// Accessing elements
|
||||
EXPECT_TRUE((cm_sav[{0, 0}] == 1));
|
||||
EXPECT_TRUE((cm_sav[{0, 1}] == 2));
|
||||
EXPECT_TRUE((cm_sav[{1, 0}] == 4));
|
||||
EXPECT_TRUE((cm_sav[{4, 2}] == 15));
|
||||
|
||||
// Slice
|
||||
strided_span<int, 1> cm_sl = cm_sav[3];
|
||||
|
||||
EXPECT_TRUE(cm_sl[0] == 10);
|
||||
EXPECT_TRUE(cm_sl[1] == 11);
|
||||
EXPECT_TRUE(cm_sl[2] == 12);
|
||||
|
||||
// Section
|
||||
strided_span<int, 2> cm_sec = cm_sav.section({2, 1}, {3, 2});
|
||||
|
||||
EXPECT_TRUE((cm_sec.bounds().index_bounds() == multi_span_index<2>{3, 2}));
|
||||
EXPECT_TRUE((cm_sec[{0, 0}] == 8));
|
||||
EXPECT_TRUE((cm_sec[{0, 1}] == 9));
|
||||
EXPECT_TRUE((cm_sec[{1, 0}] == 11));
|
||||
EXPECT_TRUE((cm_sec[{2, 1}] == 15));
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, strided_span_bounds)
|
||||
{
|
||||
int arr[] = {0, 1, 2, 3};
|
||||
multi_span<int> av(arr);
|
||||
|
||||
std::set_terminate([] {
|
||||
std::cerr << "Expected Death. strided_span_bounds";
|
||||
std::abort();
|
||||
});
|
||||
|
||||
{
|
||||
// incorrect sections
|
||||
|
||||
EXPECT_DEATH(av.section(0, 0)[0], deathstring);
|
||||
EXPECT_DEATH(av.section(1, 0)[0], deathstring);
|
||||
EXPECT_DEATH(av.section(1, 1)[1], deathstring);
|
||||
|
||||
EXPECT_DEATH(av.section(2, 5), deathstring);
|
||||
EXPECT_DEATH(av.section(5, 2), deathstring);
|
||||
EXPECT_DEATH(av.section(5, 0), deathstring);
|
||||
EXPECT_DEATH(av.section(0, 5), deathstring);
|
||||
EXPECT_DEATH(av.section(5, 5), deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// zero stride
|
||||
strided_span<int, 1> sav{av, {{4}, {}}};
|
||||
EXPECT_TRUE(sav[0] == 0);
|
||||
EXPECT_TRUE(sav[3] == 0);
|
||||
EXPECT_DEATH(sav[4], deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// zero extent
|
||||
strided_span<int, 1> sav{av, {{}, {1}}};
|
||||
EXPECT_DEATH(sav[0], deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// zero extent and stride
|
||||
strided_span<int, 1> sav{av, {{}, {}}};
|
||||
EXPECT_DEATH(sav[0], deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// strided array ctor with matching strided bounds
|
||||
strided_span<int, 1> sav{arr, {4, 1}};
|
||||
EXPECT_TRUE(sav.bounds().index_bounds() == multi_span_index<1>{4});
|
||||
EXPECT_TRUE(sav[3] == 3);
|
||||
EXPECT_DEATH(sav[4], deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// strided array ctor with smaller strided bounds
|
||||
strided_span<int, 1> sav{arr, {2, 1}};
|
||||
EXPECT_TRUE(sav.bounds().index_bounds() == multi_span_index<1>{2});
|
||||
EXPECT_TRUE(sav[1] == 1);
|
||||
EXPECT_DEATH(sav[2], deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// strided array ctor with fitting irregular bounds
|
||||
strided_span<int, 1> sav{arr, {2, 3}};
|
||||
EXPECT_TRUE(sav.bounds().index_bounds() == multi_span_index<1>{2});
|
||||
EXPECT_TRUE(sav[0] == 0);
|
||||
EXPECT_TRUE(sav[1] == 3);
|
||||
EXPECT_DEATH(sav[2], deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// bounds cross data boundaries - from static arrays
|
||||
EXPECT_DEATH((strided_span<int, 1>{arr, {3, 2}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{arr, {3, 3}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{arr, {4, 5}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{arr, {5, 1}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{arr, {5, 5}}), deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// bounds cross data boundaries - from array view
|
||||
EXPECT_DEATH((strided_span<int, 1>{av, {3, 2}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av, {3, 3}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av, {4, 5}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av, {5, 1}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av, {5, 5}}), deathstring);
|
||||
}
|
||||
|
||||
{
|
||||
// bounds cross data boundaries - from dynamic arrays
|
||||
EXPECT_DEATH((strided_span<int, 1>{av.data(), 4, {3, 2}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av.data(), 4, {3, 3}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av.data(), 4, {4, 5}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av.data(), 4, {5, 1}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av.data(), 4, {5, 5}}), deathstring);
|
||||
EXPECT_DEATH((strided_span<int, 1>{av.data(), 2, {2, 2}}), deathstring);
|
||||
}
|
||||
|
||||
#ifdef CONFIRM_COMPILATION_ERRORS
|
||||
{
|
||||
strided_span<int, 1> sav0{av.data(), {3, 2}};
|
||||
strided_span<int, 1> sav1{arr, {1}};
|
||||
strided_span<int, 1> sav2{arr, {1, 1, 1}};
|
||||
strided_span<int, 1> sav3{av, {1}};
|
||||
strided_span<int, 1> sav4{av, {1, 1, 1}};
|
||||
strided_span<int, 2> sav5{av.as_multi_span(dim<2>(), dim<2>()), {1}};
|
||||
strided_span<int, 2> sav6{av.as_multi_span(dim<2>(), dim<2>()), {1, 1, 1}};
|
||||
strided_span<int, 2> sav7{av.as_multi_span(dim<2>(), dim<2>()),
|
||||
{{1, 1}, {1, 1}, {1, 1}}};
|
||||
|
||||
multi_span_index<1> index{0, 1};
|
||||
strided_span<int, 1> sav8{arr, {1, {1, 1}}};
|
||||
strided_span<int, 1> sav9{arr, {{1, 1}, {1, 1}}};
|
||||
strided_span<int, 1> sav10{av, {1, {1, 1}}};
|
||||
strided_span<int, 1> sav11{av, {{1, 1}, {1, 1}}};
|
||||
strided_span<int, 2> sav12{av.as_multi_span(dim<2>(), dim<2>()), {{1}, {1}}};
|
||||
strided_span<int, 2> sav13{av.as_multi_span(dim<2>(), dim<2>()), {{1}, {1, 1, 1}}};
|
||||
strided_span<int, 2> sav14{av.as_multi_span(dim<2>(), dim<2>()), {{1, 1, 1}, {1}}};
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, strided_span_type_conversion)
|
||||
{
|
||||
int arr[] = {0, 1, 2, 3};
|
||||
multi_span<int> av(arr);
|
||||
|
||||
std::set_terminate([] {
|
||||
std::cerr << "Expected Death. strided_span_type_conversion";
|
||||
std::abort();
|
||||
});
|
||||
|
||||
{
|
||||
strided_span<int, 1> sav{av.data(), av.size(), {av.size() / 2, 2}};
|
||||
#ifdef CONFIRM_COMPILATION_ERRORS
|
||||
strided_span<long, 1> lsav1 = sav.as_strided_span<long, 1>();
|
||||
#endif
|
||||
}
|
||||
{
|
||||
strided_span<int, 1> sav{av, {av.size() / 2, 2}};
|
||||
#ifdef CONFIRM_COMPILATION_ERRORS
|
||||
strided_span<long, 1> lsav1 = sav.as_strided_span<long, 1>();
|
||||
#endif
|
||||
}
|
||||
|
||||
multi_span<const byte, dynamic_range> bytes = as_bytes(av);
|
||||
|
||||
// retype strided array with regular strides - from raw data
|
||||
{
|
||||
strided_bounds<2> bounds{{2, bytes.size() / 4}, {bytes.size() / 2, 1}};
|
||||
strided_span<const byte, 2> sav2{bytes.data(), bytes.size(), bounds};
|
||||
strided_span<const int, 2> sav3 = sav2.as_strided_span<const int>();
|
||||
EXPECT_TRUE(sav3[0][0] == 0);
|
||||
EXPECT_TRUE(sav3[1][0] == 2);
|
||||
EXPECT_DEATH(sav3[1][1], deathstring);
|
||||
EXPECT_DEATH(sav3[0][1], deathstring);
|
||||
}
|
||||
|
||||
// retype strided array with regular strides - from multi_span
|
||||
{
|
||||
strided_bounds<2> bounds{{2, bytes.size() / 4}, {bytes.size() / 2, 1}};
|
||||
multi_span<const byte, 2, dynamic_range> bytes2 =
|
||||
as_multi_span(bytes, dim<2>(), dim(bytes.size() / 2));
|
||||
strided_span<const byte, 2> sav2{bytes2, bounds};
|
||||
strided_span<int, 2> sav3 = sav2.as_strided_span<int>();
|
||||
EXPECT_TRUE(sav3[0][0] == 0);
|
||||
EXPECT_TRUE(sav3[1][0] == 2);
|
||||
EXPECT_DEATH(sav3[1][1], deathstring);
|
||||
EXPECT_DEATH(sav3[0][1], deathstring);
|
||||
}
|
||||
|
||||
// retype strided array with not enough elements - last dimension of the array is too small
|
||||
{
|
||||
strided_bounds<2> bounds{{4, 2}, {4, 1}};
|
||||
multi_span<const byte, 2, dynamic_range> bytes2 =
|
||||
as_multi_span(bytes, dim<2>(), dim(bytes.size() / 2));
|
||||
strided_span<const byte, 2> sav2{bytes2, bounds};
|
||||
EXPECT_DEATH(sav2.as_strided_span<int>(), deathstring);
|
||||
}
|
||||
|
||||
// retype strided array with not enough elements - strides are too small
|
||||
{
|
||||
strided_bounds<2> bounds{{4, 2}, {2, 1}};
|
||||
multi_span<const byte, 2, dynamic_range> bytes2 =
|
||||
as_multi_span(bytes, dim<2>(), dim(bytes.size() / 2));
|
||||
strided_span<const byte, 2> sav2{bytes2, bounds};
|
||||
EXPECT_DEATH(sav2.as_strided_span<int>(), deathstring);
|
||||
}
|
||||
|
||||
// retype strided array with not enough elements - last dimension does not divide by the new
|
||||
// typesize
|
||||
{
|
||||
strided_bounds<2> bounds{{2, 6}, {4, 1}};
|
||||
multi_span<const byte, 2, dynamic_range> bytes2 =
|
||||
as_multi_span(bytes, dim<2>(), dim(bytes.size() / 2));
|
||||
strided_span<const byte, 2> sav2{bytes2, bounds};
|
||||
EXPECT_DEATH(sav2.as_strided_span<int>(), deathstring);
|
||||
}
|
||||
|
||||
// retype strided array with not enough elements - strides does not divide by the new
|
||||
// typesize
|
||||
{
|
||||
strided_bounds<2> bounds{{2, 1}, {6, 1}};
|
||||
multi_span<const byte, 2, dynamic_range> bytes2 =
|
||||
as_multi_span(bytes, dim<2>(), dim(bytes.size() / 2));
|
||||
strided_span<const byte, 2> sav2{bytes2, bounds};
|
||||
EXPECT_DEATH(sav2.as_strided_span<int>(), deathstring);
|
||||
}
|
||||
|
||||
// retype strided array with irregular strides - from raw data
|
||||
{
|
||||
strided_bounds<1> bounds{bytes.size() / 2, 2};
|
||||
strided_span<const byte, 1> sav2{bytes.data(), bytes.size(), bounds};
|
||||
EXPECT_DEATH(sav2.as_strided_span<int>(), deathstring);
|
||||
}
|
||||
|
||||
// retype strided array with irregular strides - from multi_span
|
||||
{
|
||||
strided_bounds<1> bounds{bytes.size() / 2, 2};
|
||||
strided_span<const byte, 1> sav2{bytes, bounds};
|
||||
EXPECT_DEATH(sav2.as_strided_span<int>(), deathstring);
|
||||
}
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, empty_strided_spans)
|
||||
{
|
||||
std::set_terminate([] {
|
||||
std::cerr << "Expected Death. empty_strided_spans";
|
||||
std::abort();
|
||||
});
|
||||
|
||||
{
|
||||
multi_span<int, 0> empty_av(nullptr);
|
||||
strided_span<int, 1> empty_sav{empty_av, {0, 1}};
|
||||
|
||||
EXPECT_TRUE(empty_sav.bounds().index_bounds() == multi_span_index<1>{0});
|
||||
EXPECT_TRUE(empty_sav.empty());
|
||||
EXPECT_DEATH(empty_sav[0], deathstring);
|
||||
EXPECT_DEATH(empty_sav.begin()[0], deathstring);
|
||||
EXPECT_DEATH(empty_sav.cbegin()[0], deathstring);
|
||||
|
||||
for (const auto& v : empty_sav) {
|
||||
(void) v;
|
||||
EXPECT_TRUE(false);
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
strided_span<int, 1> empty_sav{nullptr, 0, {0, 1}};
|
||||
|
||||
EXPECT_TRUE(empty_sav.bounds().index_bounds() == multi_span_index<1>{0});
|
||||
EXPECT_DEATH(empty_sav[0], deathstring);
|
||||
EXPECT_DEATH(empty_sav.begin()[0], deathstring);
|
||||
EXPECT_DEATH(empty_sav.cbegin()[0], deathstring);
|
||||
|
||||
for (const auto& v : empty_sav) {
|
||||
(void) v;
|
||||
EXPECT_TRUE(false);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, strided_span_section_iteration)
|
||||
{
|
||||
int arr[8] = {4, 0, 5, 1, 6, 2, 7, 3};
|
||||
|
||||
// static bounds
|
||||
{
|
||||
multi_span<int, 8> av(arr, 8);
|
||||
iterate_every_other_element(av);
|
||||
}
|
||||
|
||||
// dynamic bounds
|
||||
{
|
||||
multi_span<int, dynamic_range> av(arr, 8);
|
||||
iterate_every_other_element(av);
|
||||
}
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, dynamic_strided_span_section_iteration)
|
||||
{
|
||||
auto arr = new int[8];
|
||||
for (int i = 0; i < 4; ++i) {
|
||||
arr[2 * i] = 4 + i;
|
||||
arr[2 * i + 1] = i;
|
||||
}
|
||||
|
||||
auto av = as_multi_span(arr, 8);
|
||||
iterate_every_other_element(av);
|
||||
|
||||
delete[] arr;
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, strided_span_section_iteration_3d)
|
||||
{
|
||||
int arr[3][4][2]{};
|
||||
for (auto i = 0; i < 3; ++i) {
|
||||
for (auto j = 0; j < 4; ++j)
|
||||
for (auto k = 0; k < 2; ++k) arr[i][j][k] = 8 * i + 2 * j + k;
|
||||
}
|
||||
|
||||
{
|
||||
multi_span<int, 3, 4, 2> av = arr;
|
||||
iterate_second_slice(av);
|
||||
}
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, dynamic_strided_span_section_iteration_3d)
|
||||
{
|
||||
const auto height = 12, width = 2;
|
||||
const auto size = height * width;
|
||||
|
||||
auto arr = new int[static_cast<std::size_t>(size)];
|
||||
for (auto i = 0; i < size; ++i) {
|
||||
arr[i] = i;
|
||||
}
|
||||
|
||||
{
|
||||
auto av = as_multi_span(as_multi_span(arr, 24), dim<3>(), dim<4>(), dim<2>());
|
||||
iterate_second_slice(av);
|
||||
}
|
||||
|
||||
{
|
||||
auto av = as_multi_span(as_multi_span(arr, 24), dim(3), dim<4>(), dim<2>());
|
||||
iterate_second_slice(av);
|
||||
}
|
||||
|
||||
{
|
||||
auto av = as_multi_span(as_multi_span(arr, 24), dim<3>(), dim(4), dim<2>());
|
||||
iterate_second_slice(av);
|
||||
}
|
||||
|
||||
{
|
||||
auto av = as_multi_span(as_multi_span(arr, 24), dim<3>(), dim<4>(), dim(2));
|
||||
iterate_second_slice(av);
|
||||
}
|
||||
delete[] arr;
|
||||
}
|
||||
|
||||
TEST(strided_span_tests, strided_span_conversion)
|
||||
{
|
||||
std::set_terminate([] {
|
||||
std::cerr << "Expected Death. strided_span_conversion";
|
||||
std::abort();
|
||||
});
|
||||
|
||||
// get an multi_span of 'c' values from the list of X's
|
||||
|
||||
struct X
|
||||
{
|
||||
int a;
|
||||
int b;
|
||||
int c;
|
||||
};
|
||||
|
||||
X arr[4] = {{0, 1, 2}, {3, 4, 5}, {6, 7, 8}, {9, 10, 11}};
|
||||
|
||||
int s = sizeof(int) / sizeof(byte);
|
||||
auto d2 = 3 * s;
|
||||
auto d1 = narrow_cast<int>(sizeof(int)) * 12 / d2;
|
||||
|
||||
// convert to 4x12 array of bytes
|
||||
auto av = as_multi_span(as_bytes(as_multi_span(&arr[0], 4)), dim(d1), dim(d2));
|
||||
|
||||
EXPECT_TRUE(av.bounds().index_bounds()[0] == 4);
|
||||
EXPECT_TRUE(av.bounds().index_bounds()[1] == 12);
|
||||
|
||||
// get the last 4 columns
|
||||
auto section = av.section({0, 2 * s}, {4, s}); // { { arr[0].c[0], arr[0].c[1], arr[0].c[2],
|
||||
// arr[0].c[3] } , { arr[1].c[0], ... } , ...
|
||||
// }
|
||||
|
||||
// convert to array 4x1 array of integers
|
||||
auto cs = section.as_strided_span<int>(); // { { arr[0].c }, {arr[1].c } , ... }
|
||||
|
||||
EXPECT_TRUE(cs.bounds().index_bounds()[0] == 4);
|
||||
EXPECT_TRUE(cs.bounds().index_bounds()[1] == 1);
|
||||
|
||||
// transpose to 1x4 array
|
||||
strided_bounds<2> reverse_bounds{
|
||||
{cs.bounds().index_bounds()[1], cs.bounds().index_bounds()[0]},
|
||||
{cs.bounds().strides()[1], cs.bounds().strides()[0]}};
|
||||
|
||||
strided_span<int, 2> transposed{cs.data(), cs.bounds().total_size(), reverse_bounds};
|
||||
|
||||
// slice to get a one-dimensional array of c's
|
||||
strided_span<int, 1> result = transposed[0];
|
||||
|
||||
EXPECT_TRUE(result.bounds().index_bounds()[0] == 4);
|
||||
EXPECT_DEATH(result.bounds().index_bounds()[1], deathstring);
|
||||
|
||||
int i = 0;
|
||||
for (auto& num : result) {
|
||||
EXPECT_TRUE(num == arr[i].c);
|
||||
i++;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user