// If hint is large zeroing this memory could take a while.
	if h.B != 0 {
		var nextOverflow *bmap
		h.buckets, nextOverflow = makeBucketArray(t, h.B, nil)
		if nextOverflow != nil {
			h.extra = new(mapextra)
			h.extra.nextOverflow = nextOverflow
		}
	}

	return h
}

// makeBucketArray initializes a backing array for map buckets.

	ENOTSOCK        = Errno(0x5f)
	ENOTSUP         = Errno(0x30)
	ENOTTY          = Errno(0x19)
	ENOTUNIQ        = Errno(0x50)
	ENXIO           = Errno(0x6)
	EOPNOTSUPP      = Errno(0x7a)
	EOVERFLOW       = Errno(0x4f)
	EOWNERDEAD      = Errno(0x3a)
	EPERM           = Errno(0x1)
	EPFNOSUPPORT    = Errno(0x7b)
	EPIPE           = Errno(0x20)
	EPROTO          = Errno(0x47)
	EPROTONOSUPPORT = Errno(0x78)