std::remove_copy : remove_copy « STL Algorithms Modifying sequence operations « C++ Tutorial

1. C++ Tutorial
2. STL Algorithms Modifying sequence operations
3. remove_copy

#include <iostream>
using std::cout;
using std::endl;

#include <algorithm>
#include <vector>
#include <iterator>

int main()
{
   int a[ 10 ] = { 10, 2, 10, 4, 16, 6, 14, 8, 12, 10 };

   std::ostream_iterator< int > output( cout, " " );

   std::vector< int > v2( a, a + 10 ); // copy of a
   std::vector< int > c( 10, 0 ); // instantiate vector c
   cout << "Vector v2 before removing all 10s and copying:\n   ";
   std::copy( v2.begin(), v2.end(), output );

   // copy from v2 to c, removing 10s in the process
   std::remove_copy( v2.begin(), v2.end(), c.begin(), 10 );
   cout << "\nVector c after removing all 10s from v2:\n   ";
   std::copy( c.begin(), c.end(), output );

   return 0;
}

Vector v2 before removing all 10s and copying:
   10 2 10 4 16 6 14 8 12 10
Vector c after removing all 10s from v2:
   2 4 16 6 14 8 12 0 0 0