== Quote from Simen kjaeraas (simen.kja...@gmail.com)'s article
> %u <e...@ee.com> wrote:
> > The code didn't compile, so I tried fixing it.. and failed as I don't
> > really get
> > what you want it to do (or even how to call it :)
> > Please explain it to me.
> Sorry, it was late and I was tired. Updated code (tested, even! :p):
> module foo;
> import std.stdio;
> template defineStaticImpl( T, int value, string name, args... ) {
> mixin( "static T " ~ name ~ " = cast(T)value; " );
> static if ( args.length != 0 ) {
> mixin defineStaticImpl!( T, value + 1, args );
> }
> }
> template defineStatic( T, args... ) {
> mixin defineStaticImpl!( T, 0, args );
> }
> struct defineEnum( T... ) {
> int value;
> static const int num = T.length;
> mixin defineStatic!( typeof( this ), T );
> static int opApply( int delegate( ref defineEnum ) dg ) {
> int result = 0;
> foreach ( i, e; T ) {
> result = dg( defineEnum( i ) );
> if ( result ) {
> break;
> }
> }
> return result;
> }
> static defineEnum opCall( int value ) {
> defineEnum tmp;
> tmp.value = value;
> return tmp;
> }
> string toString( ) {
> foreach ( i, e; T ) {
> if ( i == value ) {
> return e.dup;
> }
> }
> }
> }
> void main( ) {
> alias defineEnum!( "A", "B", "C" ) Bar;
> foreach ( e; Bar ) {
> writefln( e );
> }
> }
Thanks!! :)
This I can understand.
