Hi dlang community,
Just started to learn D using Visual Studio 2007, latest VisualD
(VisualD-v0.51.0-dmd-2.090.0-ldc2-1.19.0) and "The D Programming
Language" by Andrei Alexandrescu.
I am trying to run most of the examples and had a surprise at
chapter 1.6.1 "More Statistics. Inheritance" with the following
code:
interface Stat {
void accumulate(double x);
...
}
class IncrementalStat : Stat {
...
abstract void accumulate(double x);
...
}
class Min : IncrementalStat {
...
void accumulate(double x) { ... }
...
}
In class "Min" definition I am receiving this error: "cannot
implicitly override base class method
`IncrementalStat.accumulate` with `Min.accumulate`; add
`override` attribute"
After I update "Min" class to << override void accumulate(double
x) >> everything works fine.
Can anybody clarify where is the problem.
Thanks in advance,
Claudiu