[Bug 91] New: Inherited classes require base class to have a default constructor.

[Jari-Matti Mäkelä]

d-bugmail at puremagic.com wrote:
> http://d.puremagic.com/bugzilla/show_bug.cgi?id=91
> 
>            Summary: Inherited classes require base class to have a default
>                     constructor.
>            Product: D
>            Version: 0.152
>           Platform: PC
>         OS/Version: Windows
>             Status: NEW
>           Severity: minor
>           Priority: P2
>          Component: DMD
>         AssignedTo: bugzilla at digitalmars.com
>         ReportedBy: eric96 at gmail.com
> 
> 
> Let me know if this is expected behavior or some rule I don't know about, but I
> think it's a bug.  If you insert the default constructor "this(){}" in A, it
> compiles fine.
> 
> // Looks like it requires the base class to have a default constructor.
> class A
> {  this (int i) // constructor yage.a.this(int) does not match argument types
> ()
>    {}
> }
> class B : A
> {  this (int i)
>    {}
> }

This is correct behaviour. Class B implicitly calls the default
constructor and if one is not found, an appropriate parent class
constructor call should be explicitly defined in B's constructor.

-- 
Jari-Matti