Hello,
Iám new to D so i might be all wrong. Given the code:
class Foo {
int opApply( int delegate(ref real) dg ) {...} //A.
int opApply( int delegate(real) dg ) {...} // B,
}
...
Foo foo = new Foo;
foreach( a; foo ) {...} // 1.
foreach( ref a; foo ) {...} // 2,
Is it normal that, the A. version (with ref) is called for both cases and if
the A is eliminated, only the 2. foreach loop will compile ? The second case
works as i expected but what about the first case - the B. function won't be
called ever ?
Furthermore, i wanted to create a const iterator
class Foo {
int opApply( int delegate(ref real) dg ) {...} //A.
const int opApply( int delegate(real) dg ) {...} // B,
}
...
Foo foo = new Foo;
const Foo f2 = foo;
foreach( a; f2 ) {...} // 1.
foreach( ref a; foo ) {...} // 2,
It won't compile. (dmd 2.032) (I expected that, for the 1. loop the B version
and for the 2. loop the A version of the functions'd be called)
So what is the D way to create const iterator ?
