Hi, The costs of throwing an exception is well described in Scott Meyer's Item 15 "More Effective C++". The key guidelines presented were : a) ... exceptions should be rare. After all, they indicate the occurrence of events that are exceptional. b) Compared to a normal function return, returning from a function by throwing an exception may be as much as three orders of magnitude slower. I would hope the "TerminatorFunc" or predicate would be added, at some point in time. "Thomas Costa" <oohrah@mac.com> wrote in message news:97CBE416-AB60-4ADD-804D-4C6BDFB6F5C9@mac.com...
Will a future version of BGL have a "TerminatorFunc" in all the visitor types?
Throwing an exception as part of the "normal" flow of an algorithm seems to go against most people's C++ philosophy.