Variant is very usefull but a function who take a variant as parameter
do not works whithout a cast. but You can assign a value form any type
in statement Variant v = 2u.
the code below explain well the problem
---------------
import std.string;
import std.stdio;
import std.variant;

void func( Variant param ){
    writeln( "it works" );
}

void func2( T )( T param ){
    Variant a = cast(Variant) param;
    writeln( "it works" );
}

void main( string[] args ){
    Variant a = 2u; // works
    func( a );
    //func( 2u ); // does not works
    func2( 2u );
}
----------

It will be great if function func work in all case

On 11/30/2011 07:53 PM, bioinfornatics wrote:
> Variant is very usefull but a function who take a variant as parameter
> do not works whithout a cast. but You can assign a value form any type
> in statement Variant v = 2u.
> the code below explain well the problem
> ---------------
> import std.string;
> import std.stdio;
> import std.variant;
>
> void func( Variant param ){
>      writeln( "it works" );
> }
>
> void func2( T )( T param ){
>      Variant a = cast(Variant) param;
>      writeln( "it works" );
> }
>
> void main( string[] args ){
>      Variant a = 2u; // works
>      func( a );
>      //func( 2u ); // does not works
>      func2( 2u );
> }
> ----------
>
> It will be great if function func work in all case
>

Vote here: http://d.puremagic.com/issues/show_bug.cgi?id=7019

Le mercredi 30 novembre 2011 à 22:19 +0100, Timon Gehr a écrit :
> On 11/30/2011 07:53 PM, bioinfornatics wrote:
> > Variant is very usefull but a function who take a variant as parameter
> > do not works whithout a cast. but You can assign a value form any type
> > in statement Variant v = 2u.
> > the code below explain well the problem
> > ---------------
> > import std.string;
> > import std.stdio;
> > import std.variant;
> >
> > void func( Variant param ){
> >      writeln( "it works" );
> > }
> >
> > void func2( T )( T param ){
> >      Variant a = cast(Variant) param;
> >      writeln( "it works" );
> > }
> >
> > void main( string[] args ){
> >      Variant a = 2u; // works
> >      func( a );
> >      //func( 2u ); // does not works
> >      func2( 2u );
> > }
> > ----------
> >
> > It will be great if function func work in all case
> >
> 
> Vote here: http://d.puremagic.com/issues/show_bug.cgi?id=7019

yes thanks i will do. And you you do not vote for this feature?

On 11/30/2011 11:55 PM, bioinfornatics wrote:
> Le mercredi 30 novembre 2011 à 22:19 +0100, Timon Gehr a écrit :
>> On 11/30/2011 07:53 PM, bioinfornatics wrote:
>>> Variant is very usefull but a function who take a variant as parameter
>>> do not works whithout a cast. but You can assign a value form any type
>>> in statement Variant v = 2u.
>>> the code below explain well the problem
>>> ---------------
>>> import std.string;
>>> import std.stdio;
>>> import std.variant;
>>>
>>> void func( Variant param ){
>>>       writeln( "it works" );
>>> }
>>>
>>> void func2( T )( T param ){
>>>       Variant a = cast(Variant) param;
>>>       writeln( "it works" );
>>> }
>>>
>>> void main( string[] args ){
>>>       Variant a = 2u; // works
>>>       func( a );
>>>       //func( 2u ); // does not works
>>>       func2( 2u );
>>> }
>>> ----------
>>>
>>> It will be great if function func work in all case
>>>
>>
>> Vote here: http://d.puremagic.com/issues/show_bug.cgi?id=7019
>
> yes thanks i will do. And you you do not vote for this feature?
>

I already have =).
http://d.puremagic.com/issues/votes.cgi?action=show_bug&bug_id=7019