Question

Is there a prettier / less-verbose way to use iterators in C++? From the tutorials I’ve seen, I either set up typedefs everywhere (which gets tedious to do for a lot of one-off for-loops):

typedef std::vector<std:pair<int, int> >::iterator BlahIterator;

or have verbose-looking for loops like:

for (std::vector<std:pair<int, int> >::iterator it = ... ) ...

Is there a better way?

Answer 1

With boost, you can use the FOR_EACH macro.

typedef pair<int, int> tElem;
BOOST_FOREACH( tElem e, aVector )
{
    cout << e.first << " " << e.second << '\n';
}