学步园

// equal algorithm example
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

bool mypredicate (int i, int j) {
return (i==j);
}

int main () {

int myints[] = {20,40,60,80,100};          //   myints: 20 40 60 80 100
  vector<int>myvector (myints,myints+5);     // myvector: 20 40 60 80 100

// using default comparison:
  if (equal (myvector.begin(), myvector.end(), myints))
    cout << "The contents of both sequences are equal." << endl;
else
    cout << "The contents of both sequences differ." << endl;

  myvector[3]=81;                            // myvector: 20 40 60 81 100

// using predicate comparison:
  if (equal (myvector.begin(), myvector.end(), myints, mypredicate))
    cout << "The contents of both sequences are equal." << endl;
else
    cout << "The contents of both sequences differ." << endl;

return 0;
}