Menu
Search

API Documentation

version 2.080.0

overview

View source code
Display the source code in std/experimental/allocator/showcase.d from which this page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using local clone.

Alias std.experimental.allocator.showcase.StackFront

Allocator that uses stack allocation for up to stackSize bytes and then falls back to Allocator. Defined as:

alias StackFront(ulong stackSize, Allocator) = FallbackAllocator!(InSituRegion!(stackSize,Allocator.alignment),Allocator); 
alias StackFront(size_t stackSize, Allocator) =
    FallbackAllocator!(
        InSituRegion!(stackSize, Allocator.alignment,
            hasMember!(Allocator, "deallocate")
                ? Yes.defineDeallocate
                : No.defineDeallocate),
        Allocator);

Choosing stackSize is as always a compromise. Too small a size exhausts the stack storage after a few allocations, after which there are no gains over the backup allocator. Too large a size increases the stack consumed by the thread and may end up worse off because it explores cold portions of the stack.

Example

StackFront!4096 a;
auto b = a.allocate(4000);
writeln(b.length); // 4000
auto c = a.allocate(4000);
writeln(c.length); // 4000
a.deallocate(b);
a.deallocate(c);

Authors

License