10_15.cpp

清华大学郑莉《C++语言程序设计》课件、C++教材源代码、实验参考程序全集

//10_15.cpp
#include <iostream>   
#include <numeric>   //包含数值算法头文件
#include <functional>  //包含标准函数对象头文件
using namespace std;

int main()
{
  int A[] = {1, 2, 3, 4, 5};
  const int N = sizeof(A) / sizeof(int);
  cout << "The result by multipling all elements in A is "
   << accumulate(A, A + N, 1, multiplies<int>()) //将标准函数对象传递给通用算法
   << endl;
}