Re: [Boost-Users] Newbie boost::bind problem

12 Sep 2002

      Thank you. It may seem that I'm going about this the 'hard' way, but I'm 
really using it to get a grip on the boost::bind library.

Thanks again.

Mark.

Peter Dimov wrote:
...
From: "Mark Snelling" 
...
Ok, I understand the following:
std::for_each(mylist.begin(),mylist.end(),boost::checked_deleter<Object>());
...
But when I try to use the boost::checked_deleter on the objects held in
a map using your solution to my first problem I don't seem to be able to
get it to compile:
template void for_each_pair(It first, It last, F f)
{
    for(; first != last; ++first)
    {
        f(first->first, first->second);
    }
}
int main()
{
    std::map blocks;
    std::for_each_pair(blocks.begin(), blocks.end(),
        boost::bind(boost::checked_delete<Block>(), _2));
}
checked_delete is a function template (no trailing 'r'); checked_deleter is
a class template. :-)
Also, on MSVC 6/7 you need to specify a return type when binding general
function objects:
boost::bind<void>(boost::checked_deleter<Block>(), _2)
Info: http://www.boost.org
Wiki: http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl
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