| // Copyright 2022 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| #include "pw_polyfill/standard.h" |
| |
| #if PW_CXX_STANDARD_IS_SUPPORTED(20) |
| |
| #include <span> |
| |
| #include "gtest/gtest.h" |
| #include "pw_span/span.h" |
| |
| namespace { |
| |
| constexpr int kCArray[5] = {0, 1, 2, 3, 4}; |
| |
| void TakesPwSpan(pw::span<const int>) {} |
| void TakesStdSpan(std::span<const int>) {} |
| |
| TEST(SpanCompatibility, CallFunction) { |
| TakesPwSpan(std::span<const int>(kCArray)); |
| TakesStdSpan(pw::span<const int>(kCArray)); |
| } |
| |
| TEST(SpanCompatibility, StdToPwConversions) { |
| std::span<const int> std_span(kCArray); |
| pw::span<const int> pw_span(std_span); |
| |
| EXPECT_EQ(std_span.data(), pw_span.data()); |
| EXPECT_EQ(std_span.size(), pw_span.size()); |
| |
| pw_span = std_span; |
| |
| EXPECT_EQ(std_span.data(), pw_span.data()); |
| EXPECT_EQ(std_span.size(), pw_span.size()); |
| } |
| |
| TEST(SpanCompatibility, PwToStdConversions) { |
| pw::span<const int> pw_span(kCArray); |
| std::span<const int> std_span(pw_span); |
| |
| EXPECT_EQ(std_span.data(), pw_span.data()); |
| EXPECT_EQ(std_span.size(), pw_span.size()); |
| |
| std_span = pw_span; |
| |
| EXPECT_EQ(std_span.data(), pw_span.data()); |
| EXPECT_EQ(std_span.size(), pw_span.size()); |
| } |
| |
| TEST(SpanCompatibility, SameArray) { |
| pw::span<const int> pw_span(kCArray); |
| std::span<const int> std_span(kCArray); |
| |
| EXPECT_EQ(std_span.data(), pw_span.data()); |
| EXPECT_EQ(std_span.size(), pw_span.size()); |
| |
| EXPECT_EQ(std_span[0], 0); |
| EXPECT_EQ(pw_span[0], 0); |
| EXPECT_EQ(std_span[4], 4); |
| EXPECT_EQ(pw_span[4], 4); |
| } |
| |
| } // namespace |
| |
| #endif // PW_CXX_STANDARD_IS_SUPPORTED(20) |