Algorithm - replace_copy

원형)

template <class InputIterator, class OutputIterator, class T>
  OutputIterator replace_copy (InputIterator first, InputIterator last,
                               OutputIterator result,
                               const T& old_value, const T& new_value);

의미)

[Iterator first, Iterator last)사이의 원소들중에 old_value값과 같은 것이 있으면 new_value로 교체한 다음 Iterator result 위치부터 복사합니다.

소스)

#include<iostream>
#include<algorithm>
#include<vector>
 
void Print(const std::vector<int>& target)
{
    for (std::vector<int>::const_iterator iterPos = target.begin(); iterPos != target.cend(); iterPos++)
        std::cout << *iterPos << ' ';
    std::cout << std::endl;
}
 
void main()
{
    std::vector<int> vector = { 1,3,5,7,4,1,2,5,1 };
    std::vector<int> result(9);
 
    std::cout << "vector--->";Print(vector);
    std::cout << "result--->";Print(result);
    std::replace_copy(vector.begin(), vector.end(), result.begin(), 1, 99);
    std::cout << "vector--->";Print(vector);
    std::cout << "result--->";Print(result);
}

리턴값)

복사된 값들의 마지막을 가리키는 Iterator를 리턴합니다.

결과)