On Friday, 28 February 2014 at 18:21:39 UTC, Steve Teale wrote:
On Friday, 28 February 2014 at 11:47:45 UTC, Vladimir Panteleev
wrote:
A "const" or "immutable" declaration would declare a constant
variable - meaning, unless it is optimized out at a later
point, it will end up in the data segment and have its own
address. An enum declares a manifest constant - it exists only
in the memory of the compiler. Manifest constants make sense
when doing metaprogramming. Constant/immutable declarations
make sense for values that will be used in multiple places by
code at runtime.
I'm with Mike - thanks Vlad, that makes it perfectly clear. I
just wonder slightly why a language that prides itself so on
its metaprogramming capabilities does not have a keyword that
makes it obvious
D has many of those. Would you think, that inout is a wild
modifier which transfers to const or none-const? Or that 'in' is
short for 'const scope'? That's because Walter and Andrei won't
like to add more keywords and reuse old ones from D1 times. It's
not that obvious but that's D. ;)
