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AK: Implement {first|last}_matching for Span

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stelar7 2025-05-02 14:28:37 +02:00 committed by Jelle Raaijmakers
parent 0890b10d11
commit 93d7a29306
1 changed files with 22 additions and 0 deletions
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22
AK/Span.h
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@ -306,6 +306,28 @@ public:
{
return { data(), size() };
}
template<typename TUnaryPredicate>
Optional<T&> last_matching(TUnaryPredicate const& predicate)
{
for (ssize_t i = size() - 1; i >= 0; --i) {
if (predicate(at(i))) {
return at(i);
}
}
return {};
}
template<typename TUnaryPredicate>
Optional<T&> first_matching(TUnaryPredicate const& predicate)
{
for (size_t i = 0; i < size(); ++i) {
if (predicate(at(i))) {
return at(i);
}
}
return {};
}
};
template<typename T>