On Tuesday, 11 June 2013 at 19:52:01 UTC, Seany wrote:
Hello
i read here that enums, once initialized, are constants :
http://ddili.org/ders/d.en/enum.html
However, i need a method, if possible, to dynamically
(cexecution time) definition of enums, and updating them.
anyidea how that can be done? using const and/or inout, and
passing an array / tuple to a function?
You could..., but it'd be nothing more than a glorified global
struct.
Inside a module, I'd put this:
//----
private struct Enum
{
static
{
public @property const
{
uint a(){return _a;}
uint b(){return _b;}
uint c(){return _c;}
}
private
{
uint _a = 0;
uint _b = 1;
uint _c = 2;
}
}
}
void changeState()
{
Enum._a = 2;
Enum._c = 0;
}
//----
Then you can use it...
void main()
{
writeln(Enum.a);
writeln(Enum.c);
changeState();
writeln(Enum.a);
writeln(Enum.c);
}
But even then, keep i mind these aren't compile time objects, so
you can't use them in a switch, for example...
