http://d.puremagic.com/issues/show_bug.cgi?id=2647

           Summary: typedef's and struct constructors
           Product: D
           Version: 2.023
          Platform: PC
        OS/Version: All
            Status: NEW
          Keywords: spec
          Severity: minor
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla@digitalmars.com
        ReportedBy: s.d.hammett@googlemail.com


when using typedefs of structs
their constructors return the original type instead of the new type

struct Ca {
        this(int a) {
                _answer = a / 2;
        }

        int _answer;
}

void testClasses() {
        typedef Ca Da;

        Ca a = Ca(84);
        Da c = Da(84);

}

tests0.d(38):

Error: cannot implicitly convert expression (((Ca __ctmp276 = __ctmp276 = 0;
) , __ctmp276).this(84)) of type Ca to Da

A cast is required for the code to work.


-- 

On Fri, 06 Feb 2009 11:25:37 +0300, <d-bugmail@puremagic.com> wrote:

> http://d.puremagic.com/issues/show_bug.cgi?id=2647
>
>            Summary: typedef's and struct constructors
>            Product: D
>            Version: 2.023
>           Platform: PC
>         OS/Version: All
>             Status: NEW
>           Keywords: spec
>           Severity: minor
>           Priority: P2
>          Component: DMD
>         AssignedTo: bugzilla@digitalmars.com
>         ReportedBy: s.d.hammett@googlemail.com
>
>
> when using typedefs of structs
> their constructors return the original type instead of the new type
>
> struct Ca {
>         this(int a) {
>                 _answer = a / 2;
>         }
>
>         int _answer;
> }
>
> void testClasses() {
>         typedef Ca Da;
>
>         Ca a = Ca(84);
>         Da c = Da(84);
>
> }
>
> tests0.d(38):
>
> Error: cannot implicitly convert expression (((Ca __ctmp276 = __ctmp276 = 0;
> ) , __ctmp276).this(84)) of type Ca to Da
>
> A cast is required for the code to work.
>
>

Ouch!

http://d.puremagic.com/issues/show_bug.cgi?id=2647


Don <clugdbug@yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |clugdbug@yahoo.com.au
         Resolution|                            |WONTFIX


--- Comment #1 from Don <clugdbug@yahoo.com.au> 2009-11-19 07:56:32 PST ---
Dropping typedef, so won't fix.

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