How would I use for_each to delete every value in an STL map?

Question

Suppose I have a STL map where the values are pointers, and I want to delete them all. How would I represent the following code, but making use of std::for_each? I\'m happy for

Answer 1

Have you tried using BOOST_FOREACH ? That should allow you to do that in a line without creating your own functor.

I have not tested the following code but it should look something like this(if not exactly):

typedef stdext::hash_map MyMapType; //see comment.
BOOST_FOREACH( MyMapType::value_type& p, myMap )
{
    delete p.second;
}

Well thats more than 1 line, due to the typedef :)