On Sunday, 16 February 2020 at 15:15:44 UTC, Stefan Koch wrote:
The register keyword as been deprecated for ages in C.
Since the compiler cannot actually guarantee that the variable
will be a register.
As a result D does not have the register keyword.
That only applies for C++, where it doesn't (or rather didn't)
even do the same thing as in C. In C it's an optimization aid
with actual semantic implications. A register storage-class
variable cannot be aliased, in fact, any attempt should cause
compilation failure.
Whether it actually helps modern compilers with optimization is
of course another matter ;)
