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util/bitcompat.lua

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util/bitcompat.lua @ 12715:5dd00f806e32

util.crypto: Use Lua 5.2 API for predictable buffer size In Lua 5.3 LUAL_BUFFERSIZE is a macro computed from sizeof and is thus not known at pre-processing time, so this does not work. Since Lua 5.1 is no longer supported, we can use luaL_prepbuffsize() which is available from Lua 5.2
author Kim Alvefur <zash@zash.se>
date Mon, 11 Jul 2022 17:11:38 +0200
parent 12573:0f4feaf9ca64
child 12975:d10957394a3c
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>
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1 -- Compatibility layer for bitwise operations
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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2
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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3 -- First try the bit32 lib
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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4 -- Lua 5.3 has it with compat enabled
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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5 -- Lua 5.2 has it by default
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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6 if _G.bit32 then
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Kim Alvefur <zash@zash.se>
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7 return _G.bit32;
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8 end
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9
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10 do
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11 -- Lua 5.3 and 5.4 would be able to use native infix operators
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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12 local ok, bitop = pcall(require, "util.bit53")
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13 if ok then
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14 return bitop;
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15 end
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16 end
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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17
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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18 error "No bit module found. See https://prosody.im/doc/depends#bitop";