Re: [boost] Re: Most needed/desired features in C++

From: Jaakko Jarvi (jajarvi_at_[hidden])
Date: 2002-02-19 10:43:14

> >From the parsing standpoint, this is bad. It requires arbitrary lookahead to 
> determine that a and b in the typeof expression are bound to the declarations 
> of a and b that follow, and most parsing styles don't deal well with 
> arbitrary lookahead.

And of course, the parameter names a and b should hide any global a and b.
Yes, the parsing is a problem. 

template<class A, class B, parameter a, parameter b>
vector<typeof(a[0] + b[0])>
sum(const vector<A>& a, const vector<B>& b) 

No disease a new keyword wouldn't fix.

Jaakko