RE: [Dev-C++] #DEFINE versus cont variables in array inicializations

[Ioannis V. <iv...@te...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Per Westermark
> Sent: Friday, May 30, 2003 4:23 AM
> To: Ioannis Vranos
> Cc: Dev-C++ Mailing List
> Subject: RE: [Dev-C++] #DEFINE versus cont variables in array 
> inicializations
> 
> 
> Yes, we agree that 'const int x = <value>' is efficient.
> We don't agree that 'const int &x = <value>' is efficient.


The reference can't be used to provide the size of a built in array, so my
mistake for that.


On the other hand regarding reference, a compiler would be able to optimise
out and make it occupy no more space.


const int &x=7;


Can you tell me why that wouldn't be able to be equivalent to #define x 7
when used just as a value and not accessed in any other way?

As I can think of it, a const reference should be more eaiser to optimise
out than a const variable.



Ioannis Vranos
 
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