Jerry Quinn wrote: > Hi, all. I find myself a little confused about how foreach, opApply, and > delegates interact according to the docs. > > Foreach on an aggregate will use the opApply call (assuming ranges aren't > being used). So if we use a simple example below, what exactly is the > delegate that is passed to opApply?
> The docs say a delegate is a pairing of an object reference and a function, > where the object is passed as the 'this' parameter to the function. But that > doesn't seem to be the case here. If the docs say that, they're wrong. Generally speaking, a delegate is a pairing of a function pointer and a context, where the context can be a struct pointer, a class reference *or a stackframe*, as is the case with opApply. Hope that clears things up.
