File

util/bitcompat.lua @ 13137:b417a49cc31b

util.datamanager: Halve size of list index Instead of storing (start, length) tuples, store the offset to the end of items and derive length using the previous entry.
author Kim Alvefur <zash@zash.se>
date Fri, 14 May 2021 05:49:35 +0200
parent 12975:d10957394a3c
child 13624:de902cc0d46c
line wrap: on
line source

-- Compatibility layer for bitwise operations

-- First try the bit32 lib
-- Lua 5.3 has it with compat enabled
-- Lua 5.2 has it by default
if _G.bit32 then
	return _G.bit32;
end

do
	-- Lua 5.3 and 5.4 would be able to use native infix operators
	local ok, bitop = pcall(require, "prosody.util.bit53")
	if ok then
		return bitop;
	end
end

error "No bit module found. See https://prosody.im/doc/depends#bitop";