Programming Language for Games, part 3

[bearophile via Digitalmars-d]

Walter Bright:

> * for over an array in D:
>     foreach (it; results) ...

D is better here, because it doesn't introduce magically named 
variables.


> * D does the check function thing using compile time function 
> execution to check template arguments.

This is not nearly enough. I have written a lot about this.


> * D also has full compile time function execution - it's a very 
> heavily used feature. It's mainly used for metaprogramming, 
> introspection, checking of template arguments, etc. Someone has 
> written a ray tracer that runs at compile time in D. D's 
> compile time execution doesn't go as far as running external 
> functions in DLLs.

His "compile time execution" is different and probably better: 
the whole language is available because it uses an intermediate 
bytecode. This makes it more flexible and avoids the need of 
having essentially two different implementations of the language.


> The ascii_map function will work, however.

The ASCII map example doesn't work in D because of reasons I have 
explained a lot in past posts.

Bye,
bearophile