Re: [boost] Re: FOREACH / C++ "for" proposal

From: Darren Cook (darren_at_[hidden])
Date: 2005-05-10 17:21:17

> But users might reasonably expect this:
> 
> int i = 0;
> for( i : vect )
> {
> }
> // maybe use i here

My feeling is the above should be a compiler warning, that the "i" in
the for loop is hiding the outer "i".

> to use the pre-declared i as a loop variable instead of introducing a
> new variable. That's an important use case, and some allowance should be
> made for it in the chosen syntax.

Wouldn't someone wanting to do something "clever" like that fall back to
using a normal for() or while() loop? I thought for(i:vect){} is a
convenience function to save typing and make code clearer; can it do
something a while() loop cannot?

Darren