Re: templating

[Bernd Robertz <bernd robertz cssweb de>]

Hi,

good idea, but that implies also a method for setting the parameter in
the (i. e.) tClass.
Or don't?

Bernd


Am Sonntag, den 21.12.2008, 13:20 -0200 schrieb Fabrício Godoy:
> I think that you need create a third class, as:
> 
> class tClassEmpty : tClass {
>     tClassEmpty() : tClass("") { .. };
>     ...
> }
> 
> class myNodeClass : NodeTree<tClassEmpty> {
> ...
> 
> 2008/12/21 Robert Rehammar <robert rehammar se>
>         Hi all,
>         
>         I'm writing a small program and has bumped in to a problem. It
>         is
>         probably actually C++ related, but since it should be a
>         problem lot's of
>         people here face I'll ask here. I want to do the following:
>         
>         class tClass {
>                tClass (string s) {...};
>                ...
>         }
>         
>         class myNodeClass : NodeTree<tClass> {
>                myNodeClass (string s) :
>                        NodeTree<tClass> {
>                        ...
>                };
>         }
>         
>         But this won't compile as the template for NodeTree, tClass,
>         requires a
>         parameter (the string s) and I simply can't figure out how to
>         pass it to
>         the template.
>         
>         Writing the constructor as
>         
>         myNodeTree (string s): NodeTree<tClass (s)> won't compile,
>         complaining
>         that s can't appear in a constant expression, so this seem so
>         suggest
>         that I can't template with a class that require any parameters
>         for
>         initiation...
>         
>         Thanks in advance!
>         
>         \\Robert Rehammar
>         
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