Vladimir Panteleev wrote:
On Saturday, 24 December 2011 at 00:31:43 UTC, Piotr Szturmaj wrote:
Jonathan M Davis wrote:
On Friday, December 23, 2011 23:09:32 Piotr Szturmaj wrote:
Johannes Pfau wrote:
Related question to the SHA/MD5 hash functions: could those be pure?
Weakly pure, yes - but for what?
In general, if a function _can_ be pure, it _should_ be pure. If it
can be and
it isn't, it artificially restricts the types of functions which can
call it.
Yes, Johannes probably want to mark uuid hash gen as pure. I just
wanted to know if its something important as my code used memcpy which
is impure.
Where does your code use memcpy? I see one mention in the comments, but
none in the code.
See putArray() in base.d
Anyway, I believe you can do without memcpy by using array copy? Array
copy might even be faster, since memcpy is not a DMD compiler intrinsic
like in many C/C++ compilers.
I converted memcpy calls to array copy but it become about 1 Mbps slower.
