alloc

Use this to allocate a new memory block with memory that is at least size big.

The optional params can specify the prefix and padding for the memory. If null is passed, no flags, no extra prefix/padding and a default alignment is used.

The prefix/padding will be filled with 0 if flags contains ZERO_PREFIXED and ZERO_PADDED respectively.

When this is null, the default allocator will be used.

The alignment in params is given as a bitmask so that align + 1 equals the amount of bytes to align to. For example, to align to 8 bytes, use an alignment of 7.

Parameters:

this	a Allocator to use
size	size of the visible memory area
params	optional parameters

Returns:

a new Memory.