[boost] Re: any interest in a foreach looping construct?

From: Russell Hind (rhind_at_[hidden])
Date: 2003-10-13 03:34:36

Eric Niebler wrote:
> 
> That's not a good idea -- putting the type there is more explicit, and 
> it makes it look more like a for(;;) loop. Besides, you might want a 
> conversion to occur; for example, BOOST_FOREACH( int i, vector_of_bools 
> ).  Also it's impossible to achieve without typeof() AFAICT.
> 
> 
>> BOOST_FOREACH(i, int_list)
> 
> 
> This syntax is reserved for when you have predeclared the loop variable, 
> as in:
> 

Thats fair enough.

I was merely commenting from your example in that if you wish to modify 
the elements, then if you don't declare it as a reference, your example as

     i += 20;

Won't work as you are modifying a local, not a reference to the elemnt 
itself.

Thanks

Russell