From: Gavin Sinclair <gsinclair@...>
Date: 2003-01-30T09:18:17+09:00
Subject: Re: Local variables & blocks

On Thursday, January 30, 2003, 11:13:45 AM, Paul wrote:

> On Thu, Jan 30, 2003 at 08:35:01AM +0900, Gavin Sinclair wrote:
>> The behaviour exhibited by that snippet always struck me as
>> "surprising", coming from C-like languages where "if" introduces a new
>> scope.

> In C, "if" doesn't introduce a new scope; {} does:

> void foo() {
>   int x = 1;
>   if(1)
>     int x = 2; // error: redeclaration of x
>   if(1) {
>     int x = 2; // okay; the outer x is hidden by this one
>   }
> }

Now *that* is surprising!  I assumed that the braceless (one-line)
version of "if" (and other control statements) was a typographical
shortcut only.

You learn something every day...