13 Nov
2007
13 Nov
'07
11:07 p.m.
From: Jeff Garland Ok, fair enough. I must have some misunderstanding of the implementation b/c I don't see how the function call can be optimized away by the compiler when the function pointer can be set at runtime.
That's simple - there are no function pointers in this case. ;-) The design is flexible and allows for dynamically-changed constraints, but it also allows for completely static constraints, the latter being the case here. A constraint is a predicate - that's all. You can use boost::function to be able to dynamically change the constraint, or you can use a predicate directly as the template's parameter to make it statically associated with the type of used constrained objects. Best regards, Robert