[fpc-devel] New feature discussion: for-in loop

[Micha Nelissen]

Vinzent Höfler wrote:
> At first, "const function" would tell us that the function does not change the object in any way, right?

What is "the object"? Usually there are 2 objects: the list (TList e.g.) 
and the object being iterated, e.g. TList.Objects[I]. Those referenced 
objects can be volatile, the const-ness only applies to the TList. 
Ideally the iterator state and the state of the items iterated over are 
separated. (Maybe this is not so with e.g. TStringList).

Micha