C++的Container: stack使用範例

// stack.cpp
#include <iostream>
#include <stack>
#include <string>

int main()
{
    std::stack<int> ss;
    std::cout<<"size="<<ss.size()<<std::endl;
    for (int i=0; i<20; i++)
        ss.push(i);
    std::cout<<"size="<<ss.size()<<std::endl;
    while (!ss.empty()){
        std::cout << ' ' << ss.top();
        ss.pop(); //pop() has no return value, use top() to check value
    }
    std::cout<<std::endl;
    return 0;
}

輸出：

martin@martin-K42Jc:~/Code$ g++ -o stack stack.cpp
martin@martin-K42Jc:~/Code$ ./stack
size=0
size=20
 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0