GC.setAttr

uint setAttr( const scope void * p, uint a ) nothrow

Sets the specified bits for the memory references by p. If p references memory not originally allocated by this garbage collector, points to the interior of a memory block, or if p is null, no action will be performed.

Parameters

`p`	A pointer to the root of a valid memory block or to null.
`a`	A bit field containing any bits to set for this memory block.

Returns

The result of a call to getAttr after the specified bits have been

set.

uint setAttr(void * p, uint a) pure nothrow

ditto