Re: [Vala] difference between using IntegerType and inheriting



Silly question: why do you want to be an integer?

Most atom types are not really integers at all. I mean, given Atom a and
Atom b, what does a+1 mean? a+b? max(a, b)? a * b? Usually, those answers
are non-sense. Most of the methods you would inherit from the base numeric
type are not helpful. You may just want:

[SimpleType]
[CCode (cname = "c_name", has_type_id = false)]
public struct StructName {
  public string to_string () { return ((uint32)this).to_string (); }
}


On 6 January 2014 03:00, rastersoft <raster rastersoft com> wrote:

My question, really, is which one is the best to define in a VAPI file a
typedef. This is: if I have in C

    #typedef uint32_t xcb_atom_t;


is better to define it as:

    [SimpleType]
    [IntegerType (rank = 9)]
    [CCode (cname = "xcb_atom_t", has_type_id = false)]
    public struct Atom {
    }

or as:

    [SimpleType]
    [CCode (cname = "xcb_atom_t", has_type_id = false)]
    public struct Atom : uint32 {
    }


?

Thanks.

El 05/01/14 22:39, Luca Bruno escribió:

You inherit all the methods from uint32? ;)


On Sun, Jan 5, 2014 at 9:51 PM, rastersoft <raster rastersoft com> wrote:

 Hi again:

Another doubt I have is: what is the difference between doing:

     [SimpleType]
     [IntegerType (rank = 9)]
     [CCode (cname = "c_name", has_type_id = false)]
     public struct StructName {
     }

and

     [SimpleType]
     [CCode (cname = "c_name", has_type_id = false)]
     public struct StructName : uint32 {
     }

Thanks

--
Nos leemos
                          RASTER    (Linux user #228804)
raster rastersoft com              http://www.rastersoft.com

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--
Nos leemos
                         RASTER    (Linux user #228804)
raster rastersoft com              http://www.rastersoft.com

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-- 
--Andre Masella<andre masella name>
http://www.masella.name/


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