util/bit53.lua
author Matthew Wild <mwild1@gmail.com>
Fri, 14 Oct 2022 11:21:16 +0100
changeset 12777 f100c1035576
parent 12369 af02b033bd7f
child 13453 9912baa541c0
permissions -rw-r--r--
mod_c2s: Include stream attributes in stream-features event We need this to access 'from' in SASL2/FAST.

-- Only the operators needed by net.websocket.frames are provided at this point
return {
	band   = function (a, b, ...)
		local ret = a & b;
		if ... then
			for i = 1, select("#", ...) do
				ret = ret & (select(i, ...));
			end
		end
		return ret;
	end;
	bor    = function (a, b, ...)
		local ret = a | b;
		if ... then
			for i = 1, select("#", ...) do
				ret = ret | (select(i, ...));
			end
		end
		return ret;
	end;
	bxor   = function (a, b, ...)
		local ret = a ~ b;
		if ... then
			for i = 1, select("#", ...) do
				ret = ret ~ (select(i, ...));
			end
		end
		return ret;
	end;
	rshift = function (a, n) return a >> n end;
	lshift = function (a, n) return a << n end;
};