Re: Iterating and printing

From:
"mikehulluk@googlemail.com" <mikehulluk@googlemail.com>
Newsgroups:
comp.lang.c++
Date:
6 Apr 2007 06:48:20 -0700
Message-ID:
<1175867300.533440.175600@b75g2000hsg.googlegroups.com>
On 6 Apr, 15:30, Erik Wikstr=F6m <Erik-wikst...@telia.com> wrote:

On 2007-04-06 14:17, mikehul...@googlemail.com wrote:

Ok,
Imagine I have a class

class C
{

};

ostream& operator<<(ostream& o, const C& c) { ...}

I have a collection of these objects, in an STL list or vector and
want to do 2 things:
1/ Print all these objects to cout
2/ Write all these objects to a long string

Now, I wanted to try and use for_each and avoid my usual code of


Don't know about for_each but std::copy can be quite useful together
with ostream_iterator mentioned by Victor:

int main()
{
   std::vector<int> vec;
   for (int i = 0; i < 10; ++i)
     vec.push_back(i);

   std::stringstream ss;
   std::copy(vec.begin(), vec.end(),
     std::ostream_iterator<int>(ss, " "));
   std::copy(vec.begin(), vec.end(),
     std::ostream_iterator<int>(std::cout, " "));
   std::cout << "\n" << ss.str() << "\n";
   return 0;

}

--
Erik Wikstr=F6m


Thanks Erik, I'll give it a try!

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