Dave Angel <da...@ieee.org> wrote:
> 2) In original C, and I think in C++, the lifetime of i lasted long
> after the loop ended.
> for (int i=0; i< limit; ++i)
> {
> z += i;
> }
> i is still valid after this curly brace
>
> In C99, and at least in later C++, the scope of i ends with the curly,
> as though there were another invisible pair of braces:
> {
> for (int i=0; i< limit; ++i)
> {
> z += i;
> }}
> i is no longer valid here
>
Leading to the wonderful header declaration:
#define for if(0);else for
which moves the entire for loop including the declaration inside another
statement and therefore 'fixes' the variable scope for older compilers.
Ah, those were the days. :^)
--
Duncan Booth http://kupuguy.blogspot.com
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