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29 lines
528 B
29 lines
528 B
2 years ago
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#include "drake/common/ssize.h"
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#include <array>
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#include <string>
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#include <vector>
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#include <gtest/gtest.h>
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namespace drake {
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namespace {
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// We have to polyfill for std::ssize() for C++ < C++20.
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GTEST_TEST(Ssize, BasicTest) {
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int c[] = {-5, 10, 15};
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EXPECT_EQ(ssize(c), 3);
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std::array<double, 4> a = {1.0, 2.0, 3.0, 4.0};
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EXPECT_EQ(ssize(a), 4);
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std::string s = "abcdefg";
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EXPECT_EQ(ssize(s), 7);
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std::vector<int> v = {3, 1, 4, 1, 5, 9};
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EXPECT_EQ(ssize(v), 6);
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}
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} // namespace
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} // namespace drake
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