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Remove unnecessary checks in lua 5.1
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parent
6a83ce8c21
commit
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12
md5.lua
12
md5.lua
@ -54,12 +54,6 @@ if ok then
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bit_rshift, bit_lshift = normalize(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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if(n - floor(n) > 0) then
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error("trying to use bitwise operation on non-integer!")
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end
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end
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local function tbl2number(tbl)
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local n = #tbl
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@ -88,7 +82,6 @@ else
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for i = #small + 1, #big do
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small[i] = 0
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end
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end
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local to_bits -- needs to be declared before bit_not
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@ -108,7 +101,6 @@ else
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-- defined as local above
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to_bits = function (n)
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check_int(n)
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if(n < 0) then
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-- negative
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return to_bits(bit_not(abs(n)) + 1)
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@ -185,8 +177,6 @@ else
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end
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function bit_rshift(n, bits)
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check_int(n)
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local high_bit = 0
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if(n < 0) then
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-- negative
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@ -202,8 +192,6 @@ else
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end
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function bit_lshift(n, bits)
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check_int(n)
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if(n < 0) then
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-- negative
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n = bit_not(abs(n)) + 1
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