7 lines
4.6 KiB
Lua
7 lines
4.6 KiB
Lua
-- Lua-nums @fef161a940aaafdbb8d9c75fe073b8bb43152474 | /nums/uintb.lua | https://github.com/user-none/lua-nums | License: MIT License | Minified using https://www.npmjs.com/package/luamin/v/1.0.4
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-- Copyright (c) 2016 John Schember
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-- Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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-- The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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local a=require("nums.bn")local b={}local c={}local function d(e,f)local g=false;if not b.isuint(e)then e,f=f,e;g=true end;return e:copy(),a(f),g end;local function h(i)if i._bn==i._max then i._bn:set(0)elseif i._bn<0 or i._bn>i._max then i._bn=i._bn%i._max end end;c.__index=b;c.__add=function(e,f)local j;e,f,j=d(e,f)if j then e._bn=f+e._bn else e._bn=e._bn+f end;h(e)return e end;c.__sub=function(e,f)local j;e,f,j=d(e,f)if j then e._bn=f-e._bn else e._bn=e._bn-f end;h(e)return e end;c.__mul=function(e,f)e,f=d(e,f)e._bn=e._bn*f;h(e)return e end;c.__div=function(e,f)return e//f end;c.__mod=function(e,f)local j;e,f,j=d(e,f)if j then e._bn=f%e._bn else e._bn=e._bn%f end;h(e)return e end;c.__pow=function(e,f)local j;e,f,j=d(e,f)if j then e._bn=f^e._bn else e._bn=e._bn^f end;h(e)return e end;c.__unm=function(e)e=e:copy()e._bn=-e._bn;h(e)return e end;c.__idiv=function(e,f)local j;e,f,j=d(e,f)if j and f==0 then e._val=0;return e end;if j then e._bn=f//e._bn else e._bn=e._bn//f end;h(e)return e end;c.__band=function(e,f)e,f=d(e,f)e._bn=e._bn&f;h(e)return e end;c.__bor=function(e,f)e,f=d(e,f)e._bn=e._bn|f;h(e)return e end;c.__bxor=function(e,f)e,f=d(e,f)e._bn=e._bn~f;h(e)return e end;c.__bnot=function(e)e=e:copy()e._bn=~e._bn;h(e)return e end;c.__shl=function(e,f)local j;e,f,j=d(e,f)if j then e._bn=f<<e._bn else e._bn=e._bn<<f end;h(e)return e end;c.__shr=function(e,f)local j;e,f,j=d(e,f)if j then e._bn=f>>e._bn else e._bn=e._bn>>f end;h(e)return e end;c.__concat=function(e,f)if b.isuint(e)and b.isuint(f)then return e._bn..f._bn elseif b.isuint(e)and not b.isuint(f)then return e._bn..f end;return e..f._bn end;c.__len=function(e)return e._bits end;c.__eq=function(e,f)e,f=d(e,f)return e._bn==f end;c.__lt=function(e,f)local j;e,f,j=d(e,f)if j then return e._bn>f end;return e._bn<f end;c.__le=function(e,f)if e<f or e==f then return true end;return false end;c.__tostring=function(e)return tostring(e._bn)end;function b:new(k,l)local i=setmetatable({},c)if self~=b then return nil,"first argument must be self"end;if k==nil then return nil,"bits required"end;if b.isuint(k)then i._bits=k._bits;i._max=k._max;if l~=nil then i._bn=a(l)else i._bn=a(k._bn)end else i._bits=k;i._max=a(1)<<i._bits;if l~=nil then i._bn=a(l)else i._bn=a()end end;h(i)return i end;function b.isuint(m)if type(m)=="table"and getmetatable(m)==c then return true end;return false end;function b.u8(l)return b:new(8,l)end;function b.u16(l)return b:new(16,l)end;function b.u32(l)return b:new(32,l)end;function b.u64(l)return b:new(64,l)end;function b.u128(l)return b:new(128,l)end;function b.u256(l)return b:new(256,l)end;function b.u512(l)return b:new(512,l)end;function b:copy()return b:new(self._bits,self._bn)end;function b:set(l)if b.isuint(l)then self._bn=l._val else self._bn:set(l)end;h(self)end;function b:swape()local n;local l=a()local m;n=self:asbytearray()for o=1,#n//2 do m=n[o]n[o]=n[#n-o+1]n[#n-o+1]=m end;m={}for o=#n,1,-1 do m[#m+1]=n[o]end;for o=1,#m do l=l|(a(m[o])<<o*8-8)end;return b:new(self._bits,l)end;function b:asnumber()return self._bn:asnumber()end;function b:asbn()return self._bn:copy()end;function b:ashex(p)return self._bn:ashex(p)end;function b:asbytearray()local q;q=self._bn:asbytearray()for o=1,self._bits//8-#q do table.insert(q,1,0)end;return q end;function b:asbytestring()local f;f=self:asbytearray()for o=1,#f do f[o]=string.char(f[o])end;return table.concat(f)end;return b
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