Using the generic accumulate algorithm to compute a product by using a function object : multiply « STL Algorithms Helper « C++

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C++ » STL Algorithms Helper » multiplyScreenshots 
Using the generic accumulate algorithm to compute a product by using a function object
 
 

#include <iostream>
#include <vector>
#include <cassert>
#include <numeric>  // For accumulate
using namespace std; 

class multiply {
 public:
  int operator()(int x, int yconst return x * y; }
};

int main()
{
  int x[5{235711};

  vector<int> vector1(&x[0], &x[5])
  
  int product = accumulate(vector1.begin(), vector1.end(),
                           1, multiply());
    

  cout << product << endl;
  return 0;
}
/* 
2310

 */
        
  
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