C++ algorithm replace_copy_if() function

C++ algorithm replace_copy_if() function with c++ tutorial for beginners and professionals with examples on adjacent_find(),any_of(), copy(), copy_if(), count(), count_if(), equal(), find(), find_end(), find_first_of(), find_if(), find_if_not(), for_each() etc.

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C++ Algorithm replace_copy_if()

C++ Algorithm replace_copy_if() function is used to make a copy of the range [first, last) to the range beginning at result, placing those for which pred returns true by new_value. It uses predicate pred instead of operator== to compare the elements.

This function examines each element in a source range and replaces it if it satisfies a specified predicate while copying the result into a new destination range.

Syntax

template <class InputIterator, class OutputIterator, class UnaryPredicate, class T>
OutputIterator replace_copy_if (InputIterator first, InputIterator last,
OutputIterator result, UnaryPredicate pred, const T& new_value);

Parameter

first: An input iterator pointing to the initial position in the range from which elements are being replaced.

last: A input iterator pointing to the final position in the range from which elements are being replaced.

result: An output iterator pointing to the first element of the range where the resulting sequence is stored.

pred: The unary predicate that must be satisfied if the value of an element is to be replaced.

old_value: The old value of the element being replaced.

new_value: The new value assigned to the element with the old value.

Return value

The replace_copy_if() function returns an output iterator pointing to the position that points to the last element written in the result sequence.

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Java

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