fn allocWithOptions(self: Allocator, comptime Elem: type, n: usize, comptime optional_alignment: ?u29, comptime optional_sentinel: ?Elem) Error!AllocWithOptionsPayload(Elem, optional_alignment, optional_sentinel)

Parameters

self: Allocator,
Elem: type,
n: usize,
optional_alignment: ?u29,

null means naturally aligned

optional_sentinel: ?Elem,