Find the first element in the range (first, last + 1) that matches value : Algorithm « vector « C++ Tutorial

1. C++ Tutorial
2. vector
3. Algorithm

#include <iostream>
#include <algorithm>

using namespace std ;

int main(void)
 {
   const int ARRAY_SIZE = 8;
   int IntArray[ARRAY_SIZE] = { 1, 2, 3, 4, 4, 5, 6, 7 };
   int *location ;  //stores the position of the first matching element.
   int i;
   int value = 4;

   // print content of IntArray
   for (i = 0; i < ARRAY_SIZE; i++)
     cout << IntArray[i] << ", ";

   //Find the first element in the range (first, last + 1) that matches value.
   location = find(IntArray, IntArray + ARRAY_SIZE, value);
   
   //print the matching element if any was found
   if (location != IntArray + ARRAY_SIZE)  
     cout << "First element that matches " << value << " is at location "
     << (location - IntArray) << endl;
   else                    
     cout << "The sequence does not contain any elements with value " << value << endl;
}