util/IntrusiveForwardList: add method remove_and_dispose_if()
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@ -199,6 +199,30 @@ public:
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last_cache = {};
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}
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/**
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* @return the number of removed items
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*/
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std::size_t remove_and_dispose_if(std::predicate<const_reference> auto pred,
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Disposer<value_type> auto dispose) noexcept {
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std::size_t result = 0;
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for (auto prev = before_begin(), current = std::next(prev);
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current != end();) {
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auto &item = *current;
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if (pred(item)) {
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++result;
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++current;
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erase_after(prev);
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dispose(&item);
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} else {
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prev = current++;
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}
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}
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return result;
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}
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const_reference front() const noexcept {
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return *Cast(head.next);
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}
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