Global const variables

[ketmar via Digitalmars-d-learn]

On Tue, 21 Oct 2014 16:47:04 +0000
Solomon E via Digitalmars-d-learn <digitalmars-d-learn at puremagic.com>
wrote:

> That's unsafe because the implementation might change, and 
> pointer arithmetic is unsafe in general.
sure, ponter casting is implementation-dependend. but .ptr is
guaranteed to work as expected. 'a' is just a `struct { size_t length;
void* ptr }` now, but this representation is implementation detail, not
a convention.
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