#include "boost/lambda/lambda.hpp"

#include <algorithm>

#include <vector>

#include <iterator>

#include <iostream>

using namespace std;

using namespace boost;

namespace bll=boost::lambda;

int main( )

{

vector< int > v;

int i=0;

// generate vector values

generate_n(back_inserter(v), 100, ++bll::var(i));

//create the output iterator

ostream_iterator<int> oiter(cout, ",");

copy(v.begin(), v.end(), oiter);

cout << endl;

// double each value in the vector

for_each(v.begin(), v.end(), bll::_1*=2);

copy(v.begin(), v.end(), oiter);

cout << endl;

return 0;

}

Regards,

Ovanes

On Tue, Mar 23, 2010 at 10:49 AM, Robert Jones <robertgbjones@gmail.com> wrote:

#include <algorithm>
#include <vector>
#include "boost/bind.hpp"

struct A
{
    int double_it( int i ) { return i * 2; }
} a;

std::vector< int > v;

int main( )
{
    for ( std::vector< int >::iterator i = v.begin( ); i != v.end( ); ++ i )
    {
        a.double_it( * i );
    }

    // Write it as a for_each/bind
    std::for_each( v.begin(), v.end(), boost::bind( & A::double_it, boost::ref( a ), _1 ) );
}