On 7/17/2014 9:27 AM, Tero wrote:
Just watched Don's DConf 2014 talk where he said D has to be ruthless about
memory inefficiency. Here's one thing that I think could help avoid unnecessary
garbage: built-in syntax for this:
import core.stdc.stdlib : alloca;
ubyte[] buffer = (cast(ubyte*) alloca(bufsize)) [0 .. bufsize];
Often bufsize is not known at compile-time but it won't change after the buffer
allocation. So there's no reason to create garbage other than the
*inconvenience*
of using alloca. Allocating in the stack seems ideal so I'd encourage that by a
clean syntax. I keep missing this feature.
You might be interested in std.internal.scopebuffer.
