enums

[H. S. Teoh via Digitalmars-d-learn]

On Fri, May 30, 2014 at 07:17:15PM +0200, Philippe Sigaud via Digitalmars-d-learn wrote:
> > In D enum can be used to define manifest constants. This means
> > constants known at compile time. In practice for a double there
> > isn't a lot of difference. In general you can't take the address of
> > a manifest constant, unlike immutables.
> 
> Because they do not exist as 'variables' or symbol in the generated
> code. They are directly replaced by their computed value.

One has to admit, though, that the choice of 'enum' as keyword is a bit
unfortunate, since most newbies (and some not-so-newbies) understand it
as "enumeration" rather than "manifest constant". It makes sense in
retrospect, but is quite counterintuitive for first-timers.


T

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