What's the D way of allocating memory?

[monarch_dodra]

On Wednesday, 7 August 2013 at 18:56:40 UTC, Ali Çehreli wrote:
>
> import core.memory;
>
> void main()
> {
>     auto p = GC.malloc(42);
> }
>
> But question to others: I wouldn't want garbage filled memory, 
> right? So I should consider GC.calloc first.
>
> Ali

Depends on why you think garbage is a problem I guess.

If it is because of false pointers, yet you aren't storing any 
pointers, then simply allocate using GC.BlkAttr.NO_SCAN. Then, 
garbage won't be a problem.

Otherwise, yeah, calloc should do the trick. Unfortunatly, calloc 
doesn't return much other than a void*, so depending on what you 
are doing, a qalloc + memset might be better.

Also, keep in mind that 0-initialization is not T.init 
initialization. This means that calloc'ed memory is not 
"initialized" per say, it is just zero'ed memory. An emplace is 
necessary before attempting, say an assignment.