prosody
b2d422b88cd6
util/bit53.lua

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util/bit53.lua @ 12812:b2d422b88cd6

Revert unintentionally committed parts of 12bd40b8e105
author Kim Alvefur <zash@zash.se>
date Wed, 21 Dec 2022 21:34:07 +0100
parent 12365:af02b033bd7f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
parents:
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1 -- Only the operators needed by net.websocket.frames are provided at this point
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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2 return {
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af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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3 band = function (a, b, ...)
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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4 local ret = a & b;
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5 if ... then
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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parents: 12358
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6 for i = 1, select("#", ...) do
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7 ret = ret & (select(i, ...));
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parents: 12358
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8 end
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9 end
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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parents: 12358
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10 return ret;
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parents: 12358
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11 end;
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parents: 12358
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12 bor = function (a, b, ...)
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13 local ret = a | b;
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parents: 12358
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14 if ... then
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parents: 12358
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15 for i = 1, select("#", ...) do
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16 ret = ret | (select(i, ...));
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17 end
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parents: 12358
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18 end
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19 return ret;
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parents: 12358
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20 end;
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parents: 12358
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21 bxor = function (a, b, ...)
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parents: 12358
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22 local ret = a ~ b;
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parents: 12358
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23 if ... then
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
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parents: 12358
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24 for i = 1, select("#", ...) do
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parents: 12358
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25 ret = ret ~ (select(i, ...));
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parents: 12358
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26 end
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parents: 12358
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27 end
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28 return ret;
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parents: 12358
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29 end;
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d77d8fba44ad util.bit53: Add left- and right shift operations
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parents: 10241
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30 rshift = function (a, n) return a >> n end;
d77d8fba44ad util.bit53: Add left- and right shift operations
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parents: 10241
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31 lshift = function (a, n) return a << n end;
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Kim Alvefur <zash@zash.se>
parents:
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32 };
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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parents:
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33