prosody
af02b033bd7f
util/bit53.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/bit53.lua @ 12365:af02b033bd7f

util.bit53: Support for more than 2 arguments, for compat with bit32
author Matthew Wild <mwild1@gmail.com>
date Fri, 04 Mar 2022 19:37:59 +0000
parent 12358:d77d8fba44ad
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10241
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
parents:
diff changeset
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)
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 return {
12365
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
3 band = function (a, b, ...)
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
4 local ret = a & b;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
5 if ... then
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
6 for i = 1, select("#", ...) do
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
7 ret = ret & (select(i, ...));
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
8 end
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
9 end
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
10 return ret;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
11 end;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
12 bor = function (a, b, ...)
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
13 local ret = a | b;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
14 if ... then
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
15 for i = 1, select("#", ...) do
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
16 ret = ret | (select(i, ...));
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
17 end
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
18 end
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
19 return ret;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
20 end;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
21 bxor = function (a, b, ...)
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
22 local ret = a ~ b;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
23 if ... then
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
24 for i = 1, select("#", ...) do
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
25 ret = ret ~ (select(i, ...));
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
26 end
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
27 end
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
28 return ret;
af02b033bd7f util.bit53: Support for more than 2 arguments, for compat with bit32
Matthew Wild <mwild1@gmail.com>
parents: 12358
diff changeset
29 end;
12358
d77d8fba44ad util.bit53: Add left- and right shift operations
Kim Alvefur <zash@zash.se>
parents: 10241
diff changeset
30 rshift = function (a, n) return a >> n end;
d77d8fba44ad util.bit53: Add left- and right shift operations
Kim Alvefur <zash@zash.se>
parents: 10241
diff changeset
31 lshift = function (a, n) return a << n end;
10241
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 };
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33