Algorithm - swap()

원형)

//배열이 아닌경우
template <class T> void swap (T& a, T& b)
  noexcept (is_nothrow_move_constructible<T>::value && is_nothrow_move_assignable<T>::value);
 
//배열의 경우
template <class T, size_t N> void swap(T (&a)[N], T (&b)[N])
  noexcept (noexcept(swap(*a,*b)));

의미)

a와 b의 값을 교체합니다.

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> vector1 = { 1,3,5,7,9 };
    std::vector<int> vector2 = { 2,4,6,8,10 };
 
    std::cout << "Vector 1 --->"; Print(vector1);
    std::cout << "Vector 2 --->"; Print(vector2);
    std::swap (vector1, vector2);
    std::cout << "Vector 1 --->"; Print(vector1);
    std::cout << "Vector 2 --->"; Print(vector2);
}

리턴값)

없음 

결과)