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| author | Ankit Meel <ankitjmeel@gmail.com> | 2020-12-16 10:32:28 +0300 |
|---|---|---|
| committer | Ankit Meel <ankitjmeel@gmail.com> | 2020-12-16 10:33:46 +0300 |
| commit | d23a5b1d88df513aff1dc1ba09730221567f2857 (patch) | |
| tree | 6de35ce0266f8778df68254764d670525952ed08 /source/blender/blenlib/tests/BLI_span_test.cc | |
| parent | e671c548e66e95d4fd1884c81c2dab1ae4a1a219 (diff) | |
BLI: constexpr Span, IndexRange, StringRef(Null/Base)
Motivated by `std::string_view` being usable in
const (compile-time) context.
One functional change was needed for StringRef:
`std::char_traits<char>::length(str)` instead of `strlen`.
Reviewed By: JacquesLucke, LazyDodo
Differential Revision: https://developer.blender.org/D9788
Diffstat (limited to 'source/blender/blenlib/tests/BLI_span_test.cc')
| -rw-r--r-- | source/blender/blenlib/tests/BLI_span_test.cc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/source/blender/blenlib/tests/BLI_span_test.cc b/source/blender/blenlib/tests/BLI_span_test.cc index 9a8d9df7873..d1c9f312b97 100644 --- a/source/blender/blenlib/tests/BLI_span_test.cc +++ b/source/blender/blenlib/tests/BLI_span_test.cc @@ -337,4 +337,19 @@ TEST(span, MutableReverseIterator) EXPECT_EQ_ARRAY(src.data(), Span({14, 15, 16, 17}).data(), 4); } +TEST(span, constexpr_) +{ + static constexpr std::array<int, 3> src = {3, 2, 1}; + constexpr Span<int> span(src); + BLI_STATIC_ASSERT(span[2] == 1, ""); + BLI_STATIC_ASSERT(span.size() == 3, ""); + BLI_STATIC_ASSERT(span.slice(1, 2).size() == 2, ""); + BLI_STATIC_ASSERT(span.has_duplicates__linear_search() == false, ""); + + std::integral_constant<bool, span.first_index(1) == 2> ic; + BLI_STATIC_ASSERT(ic.value, ""); + + EXPECT_EQ(span.slice(1, 2).size(), 2); +} + } // namespace blender::tests |