要實現類似std::remove的其他功能,可以根據需要自定義一個函數或者使用現有的STL算法進行組合。以下是一些例子:
template <typename ForwardIt, typename UnaryPredicate>
ForwardIt custom_remove_if(ForwardIt first, ForwardIt last, UnaryPredicate pred) {
ForwardIt result = first;
for (ForwardIt it = first; it != last; ++it) {
if (!pred(*it)) {
*result++ = std::move(*it);
}
}
return result;
}
template <typename ForwardIt>
ForwardIt move_duplicate_elements_to_end(ForwardIt first, ForwardIt last) {
first = std::remove(first, last, std::remove(first, last, std::end(last)));
return first;
}
template <typename ForwardIt, typename T>
void custom_replace(ForwardIt first, ForwardIt last, const T& old_value, const T& new_value) {
std::replace(first, last, old_value, new_value);
}
這些例子只是簡單的示例,實際實現時可以根據具體需求進行更復雜的邏輯設計和優化。