My ignorance, or a bug - help please

[Christophe]

Steve Teale , dans le message (digitalmars.D:146210), a écrit :
> I was converting something that was a class to a struct, and ran into this
> (minimized as much as possible):
> 
> import mysql;
> // The import mysql.d for the test contains only:
> /*
> extern (C):
> struct MYSQL{}
> MYSQL* mysql_init(MYSQL* mysql);
> */
> // If I put this stuff in-line the error does not happen
> 
> struct Connection
> {
>    MYSQL _mysql;
> 
>    ~this()
>    {
>    }
> 
>    this(int dummy = 0)
>    {
>       mysql_init(&_mysql);
>    }
> }
> 
> // dmd -c mysqld.d (2.055 - Ubuntu)
> //
> // Error: can only initialize const member _mysql inside constructor
> // Error: this is not mutable
> 
> Does anyone have any idea what's going on?

I don't know what is going one, but putting a MYSQL object in Connection 
after having defined MYSQL as a dummy empty extern C struct does not 
seem to be a good idea.

-- 
Christophe