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attempt to fix lua 5.2
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16
md5.lua
16
md5.lua
@ -39,8 +39,20 @@ local ok, bit = pcall(require, 'bit')
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if not ok then ok, bit = pcall(require, 'bit32') end
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if ok then
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bit_or, bit_and, bit_not, bit_xor = bit.bor, bit.band, bit.bnot, bit.bxor
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bit_rshift, bit_lshift = bit.rshift, bit.lshift
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bit_not = bit.bnot
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local tobit = function(n)
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return n <= 0x7fffffff and n or -(bit_not(n) + 1)
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end
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local normalize = function(f)
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return function(a,b) return tobit(f(tobit(a), tobit(b))) end
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end
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bit_or, bit_and, bit_xor = normalize(bit.bor), normalize(bit.band), normalize(bit.bxor)
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bit_rshift, bit_lshift = normailize(bit.rshift), normalize(bit.lshift)
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else
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local function check_int(n)
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-- checking not float
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