Thread: copy algorithm

Code:

#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
    vector<int> IntVect;
    for( int j = 0; j < 10; ++j )
        IntVect.push_back(j);

    copy( IntVect.begin(), IntVect.end(), ostream_iterator<int>(cout,"\n") );

    return 0;
}

Outputs via cout:
0
1
2
3
4
5
6
7
8
9

You can use this to copy a vector container into a list container for example...

Code:

#include <vector>
#include <iostream>
#include <algorithm>
#include <list>
using namespace std;

int main()
{
    vector<int> IntVect;
    list<int> IntList;

    for( int j = 0; j < 10; ++j )
        IntVect.push_back(j);

    // Copy contents of IntVect into IntList.
        
    copy( IntVect.begin(), IntVect.end(), back_inserter(IntList) );

    return 0;
}

[edit]Noticed some ';' that I needed to make ','. Sory for any confusion.[/edit]

Note the std::back_inserter in
hk_mp5kpdw's code. That in place of IntList.end() prevents overrunning the bounds of IntList.

Code:

#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
    vector<int> IntVect;
    for( int j = 0; j < 10; ++j )
        IntVect.push_back(j);

    copy( IntVect.begin(), IntVect.end(), ostream_iterator<int>  
           (cout,"\n") );  // I get errors here, see below

    return 0;
}

When I try this, I get the following errors:
E2451 undefined symbol 'ostream_interator'
and,
E2188 Expression Syntax

where the copy algorithm is used. see note in code above.
my compiler is Borland c++ builder 6.