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BinarySearch: constexpr support
Problem: - It is not possible to perform a binary search at compile-time because `binary_search` is not `constexpr`-aware. Solution: - Add `constexpr` support.
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0658051996
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2 changed files with 17 additions and 2 deletions
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@ -146,4 +146,19 @@ TEST_CASE(huge_char_array)
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delete[] span.data();
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}
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TEST_CASE(constexpr_array_search)
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{
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constexpr Array<int, 3> array = { 1, 17, 42 };
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constexpr auto test1 = *binary_search(array.span(), 1, AK::integral_compare<int>);
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constexpr auto test2 = *binary_search(array.span(), 17, AK::integral_compare<int>);
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constexpr auto test3 = *binary_search(array.span(), 42, AK::integral_compare<int>);
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constexpr auto test4 = binary_search(array.span(), 99, AK::integral_compare<int>);
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static_assert(test1 == 1, "Binary search should find value at compile-time.");
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static_assert(test2 == 17, "Binary search should find value at compile-time.");
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static_assert(test3 == 42, "Binary search should find value at compile-time.");
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static_assert(test4 == nullptr, "Binary search should return nullptr for missing value at compile-time.");
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}
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TEST_MAIN(BinarySearch)
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