sgi STL programming guide It's one of the best online resources for template, and I see a lot of people having trouble with them, even the simplest 1D vector. I highly recomend reading it cover to cover... My questions are going unanswered because of the flood of STL related stuff that piles up in any given hour on this forum :P Nah that's a joke...but... Give this resource a whirl, it's a lot easier to go through than the cppreference's stl documentation, a lot more to the point and better organized.