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AK: Add const version of Vector::first_matching

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kleines Filmröllchen 2022-04-04 18:26:00 +02:00 • committed by Andreas Kling
parent ff8ca811c7
commit 7b145d810a
1 changed files with 11 additions and 0 deletions
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11
AK/Vector.h
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@ -173,6 +173,17 @@ public:
return {}; return {};
} }
template<typename TUnaryPredicate>
Optional<VisibleType const&> first_matching(TUnaryPredicate predicate) const requires(!contains_reference)
{
for (size_t i = 0; i < size(); ++i) {
if (predicate(at(i))) {
return Optional<VisibleType const&>(at(i));
}
}
return {};
}
template<typename TUnaryPredicate> template<typename TUnaryPredicate>
Optional<VisibleType&> last_matching(TUnaryPredicate predicate) requires(!contains_reference) Optional<VisibleType&> last_matching(TUnaryPredicate predicate) requires(!contains_reference)
{ {