Setting an iterator to "end"

[Paul McKenzie]

Hello mybowlcut,

change your logical operator to

 for(; it < camera_tiles.end(); ++it)

No.

The correction is this:

 for(; it != camera_tiles.end(); ++it)

The end() of a sequence can be any value that the implementor of the container class has created. The only guarantee is that when you increment past the end of the valid items in a container, the iterator is equal to end().

The real correction to MyBowlCut's code is to not mess around with (in other words change) the controlling loop iterator in the middle of the loop. Any code that I see doing that is always susceptible to some sort of bug.

Regards,

Pauil McKenzie