Re: Syntax and redundancy

[Rici Lake <lua@...>]

On 30-Aug-05, at 10:23 AM, Boyko Bantchev wrote:

> Sorry, just couldn't resist the following :)
>
> On 8/30/05, Rici Lake <lua@ricilake.net> wrote:
> > int i; for (i = 1; i <= 10; ++i) { ... }
> > for i = 1, 10 do ... end
> >
> > Advantage: Lua, 16 fewer keystrokes
>
> Not so.  Having once defined
>
> #define DO(var,from,to) for (var=from; var<=to; ++var)
>
> then
>
> DO(i,1,10) {...}

That fails to declare i. Actually, I should have written the C line as 
follows:

{ int i; for (i = 1; i <= 10; ++i) { ... } }

You could actually write that as a macro in C9x, taking advantage of 
the bizarre syntax for declaring control variables inside for 
expressions. But afaik there is no way of doing that in C90.