Re: const argument

[Jarrett Billingsley]

On Sat, Mar 28, 2009 at 6:12 AM, TSalm ts...@free.fr wrote:
 Hello,

 Is there a way to specifie a constant argument ( I would say an argument for
 which his value is evaluate at compile time )

 For example, something like this :

 /*  CODE - */
 import tango.io.Stdout;

 void func(const bool constArg)
 {
    static if (constArg)
        Stdout(Yes).newline;
    else
        Stdout(No).newline;
 }

 void main()
 {
    func( true );
    func( false );
 }
 /*  END CODE - */

You have to do it with templates:

void func(bool constArg)()
{
static if(constArg) ... else ...
}

func!(true)();
func!(false)();

Walter suggested, in the D2 presentation at the conference in 2007,
that there should be static parameters which would work the way your
code should work.

Re: const argument

[TSalm]

Le Sat, 28 Mar 2009 12:21:52 +0100, Jarrett Billingsley  
jarrett.billings...@gmail.com a écrit:



On Sat, Mar 28, 2009 at 6:12 AM, TSalm ts...@free.fr wrote:

Hello,

Is there a way to specifie a constant argument ( I would say an  
argument for

which his value is evaluate at compile time )

For example, something like this :

/*  CODE - */
import tango.io.Stdout;

void func(const bool constArg)
{
   static if (constArg)
       Stdout(Yes).newline;
   else
       Stdout(No).newline;
}

void main()
{
   func( true );
   func( false );
}
/*  END CODE - */


You have to do it with templates:

void func(bool constArg)()
{
static if(constArg) ... else ...
}

func!(true)();
func!(false)();


Thanks.


Walter suggested, in the D2 presentation at the conference in 2007,
that there should be static parameters which would work the way your
code should work.

good idea IMO.