Re: bool and gcc

[John Knottenbelt <johnny at tecc dot co dot uk>]

On Mon, 10 Aug 1998, Inquisitor Nikodemus wrote:

> Hey!
> 
> Does gcc (egcs exactly) support boolean (bool) type?

Yup. Should do.
 
> What does the following mean ?
> 
> .cc:120: warning: name lookup of `index' changed for new ANSI `for' scoping
> .cc:119: warning:   using obsolete binding at `index'
> 
> What's that "new ANSI 'for' scoping" ?

for (int index = 0; index < 5; index++) {
	// index variable only defined here
}

// index variable no longer defined here.


(The old 'for' scoping meant that index was valid after the for loop as
well, which leads to problems when you type something like:

for (int i = 0; i < 5; i++) { ... }
for (int i = 0; i < 5; i++) { ... }

Because it moans about i being redefined.)

> And the next one :
> _x.cc:122: request for member `figure' in `nodebufstat', which is of
> non-aggregate type `node *'
> 
> Line 122 is :  *(nodebufstat).figure=-1 ;

Use

nodebufstat->figure

or

(*nodebufstat).figure

The problem is that the '.' binds more strongly than the '*'

Cheers

> thats the structure "node" :
> 
> typedef struct {
>                 char  figure;
>                 short base1,base2;
>                } node;
> 
> ... and that's declaration of nodebufstat pointer :
> 
> node  *nodebufstat=&stattab[0];
> 
> stattab is an array of node type :
> 
> node   stattab[16];
> 
> What is that ?
> 
> /greetz
> Nikki (aka Inquisitor Nikodemus)
> 
> -
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