Confusion with Vectors

[PenguinBuddha]

The following code keeps telling me the "!=" isn't being used properly, but I don't understand why.

int getLeftMost(BWTA::Polygon subject) {
	
	int leftMost = mapWidth - 1;

	for(std::vector<Position*>::const_iterator i = subject.begin(); 
		i != subject.end(); i++) {
		
		if((*i)->x() < leftMost)
			leftMost = (*i)->x();
	}
	return leftMost;
}

some notes, a Polygon is a vector of Positions, which are essentially just pairs of x and y values.

Thanks for any help!

[webJose]

Why not avoid confusion and use BWTA::Polygon::const_iterator? I think that works OK.

Also note that you say that "Polygon is a vector of Positions", but your code uses a vector of POINTERS to Positions. This could be the issue.