Algorithm - replace_if()

원형)

template <class ForwardIterator, class UnaryPredicate, class T>
  void replace_if (ForwardIterator first, ForwardIterator last,
                   UnaryPredicate pred, const T& new_value );

의미)

[Iterator first, Iterator last)사이에 있는 데이터들 중에서 pred에 대하여 true를 리턴하는 모든 값들에 대하여 new_value를 할당합니다.

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;
}
 
bool isEven(int val)
{
    return val % 2 == 0;
}
 
void main()
{
    std::vector<int> vector = { 1,3,5,7,4,1,2,5,1 };
 
    std::cout << "Vector--->"; Print(vector);
    std::replace_if(vector.begin(), vector.end(), isEven, 10);
    std::cout << "Vector--->"; Print(vector);
}

리턴값)

없음

결과)