Re: std::ostream_iterator with non std object

From:

er <erwann.rogard@gmail.com>

Newsgroups:

comp.lang.c++

Date:

Wed, 3 Nov 2010 18:08:18 -0700 (PDT)

Message-ID:

<6b8a5c3b-0933-4426-a45d-c2093d144a8d@p1g2000yqm.googlegroups.com>

On Nov 3, 8:54 pm, Jonathan Lee <jonathan.lee....@gmail.com> wrote:

On Nov 3, 7:39 pm, er <er.ci.2...@gmail.com> wrote:

Hello,

Could someone please suggest a solution for this that works with
std::ostream_iterator:

*shrugs*
Works fine for me with minimal changes:

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

struct foo {
    foo(){}
private:
    friend std::ostream & operator<<(std::ostream &os, const foo& p);

};

std::ostream& operator<<( std::ostream& os, foo const& t) {
    os << "derp";
    return os;

}

int main() {
    std::vector<foo> vec;
    vec.push_back( foo() );

    std::copy(vec.begin(), vec.end(),
        std::ostream_iterator<foo>( std::cout, " ")
    );
    return 0;}

--Jonathan

Besides the include statements, could you please point out the
specific changes?

PS: I Use OS X 10.6.4, GCC 4.2.