util/bit53.lua
author Kim Alvefur <zash@zash.se>
Thu, 28 Mar 2024 15:26:57 +0100
changeset 13472 98806cac64c3
parent 13453 9912baa541c0
permissions -rw-r--r--
MUC: Switch to official XEP-0317 namespace for Hats (including compat) (thanks nicoco)

-- 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;
	bnot   = function (x)
		return ~x;
	end;
	rshift = function (a, n) return a >> n end;
	lshift = function (a, n) return a << n end;
};