2022-06-23 22:23:31 +00:00
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// Copyright 2022 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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2022-08-31 20:21:01 +00:00
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#include "pw_polyfill/standard.h"
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#if PW_CXX_STANDARD_IS_SUPPORTED(20)
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2022-06-23 22:23:31 +00:00
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#include <span>
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#include "gtest/gtest.h"
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#include "pw_span/span.h"
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namespace {
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constexpr int kCArray[5] = {0, 1, 2, 3, 4};
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void TakesPwSpan(pw::span<const int>) {}
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void TakesStdSpan(std::span<const int>) {}
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TEST(SpanCompatibility, CallFunction) {
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TakesPwSpan(std::span<const int>(kCArray));
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TakesStdSpan(pw::span<const int>(kCArray));
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}
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TEST(SpanCompatibility, StdToPwConversions) {
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std::span<const int> std_span(kCArray);
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pw::span<const int> pw_span(std_span);
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EXPECT_EQ(std_span.data(), pw_span.data());
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EXPECT_EQ(std_span.size(), pw_span.size());
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pw_span = std_span;
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EXPECT_EQ(std_span.data(), pw_span.data());
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EXPECT_EQ(std_span.size(), pw_span.size());
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}
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TEST(SpanCompatibility, PwToStdConversions) {
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pw::span<const int> pw_span(kCArray);
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std::span<const int> std_span(pw_span);
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EXPECT_EQ(std_span.data(), pw_span.data());
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EXPECT_EQ(std_span.size(), pw_span.size());
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std_span = pw_span;
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EXPECT_EQ(std_span.data(), pw_span.data());
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EXPECT_EQ(std_span.size(), pw_span.size());
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}
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TEST(SpanCompatibility, SameArray) {
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pw::span<const int> pw_span(kCArray);
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std::span<const int> std_span(kCArray);
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EXPECT_EQ(std_span.data(), pw_span.data());
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EXPECT_EQ(std_span.size(), pw_span.size());
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EXPECT_EQ(std_span[0], 0);
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EXPECT_EQ(pw_span[0], 0);
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EXPECT_EQ(std_span[4], 4);
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EXPECT_EQ(pw_span[4], 4);
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}
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} // namespace
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2022-08-31 20:21:01 +00:00
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#endif // PW_CXX_STANDARD_IS_SUPPORTED(20)
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