Beta D 2.071.2-b3
Dicebot via Digitalmars-d-announce
digitalmars-d-announce at puremagic.com
Sat Sep 3 11:06:37 PDT 2016
On Saturday, 3 September 2016 at 14:40:37 UTC, Martin Nowak wrote:
> On Wednesday, 31 August 2016 at 09:56:17 UTC, Johan Engelen
> wrote:
>> (I can only think of complicated stuff that requires pretty
>> much whole-program analysis to prove validity, and in that
>> case adding `private` doesn't help any more)
>
> Yes, it does help. As private prevents usage outside of a
> module it allows to do some optimizations that required whole
> program analysis otherwise, e.g. variables and functions can
> get internal linkage, thus reducing loads/stores and indirect
> calls.
There are enough ways to leak access to private entity (alias,
template argument, taking address, some compile-time
introspection) to make such optimizations impossible without
extensive program analysis.
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