MUSHclient documentation: bit.ashr

bit.ashr

bit.ashr
Lua function bit.ashr Summary Shifts a number right, preserving sign Prototype `n = bit.ashr (num, bits)` Description `This takes two arguments. The first is converted to signed 'long long' (64-bit integer), the second to unsigned 'long long' (64-bit unsigned integer). The first argument is shifted right the number of bits in the second argument. Use this version for shifting signed numbers right, as it preserves the sign. (The other version, bit.shr, will shift the sign bit into the number part). eg. print (bit.ashr (-1024, 6)) --> -16` See Also ... Topics Lua base functions Lua bc (big number) functions Lua bit manipulation functions Lua coroutine functions Lua debug functions Lua io functions Lua math functions Lua os functions Lua package functions Lua PCRE regular expression functions Lua script extensions Lua string functions Lua table functions Lua utilities Scripting Lua functions bit.band (Bitwise 'and') bit.bor (Bitwise 'or') bit.mod (Bitwise 'modulus' (remainder after integer divide)) bit.neg (Bitwise negate (ones complement)) bit.shl (Shifts a number left) bit.shr (Shifts a number right) bit.tonumber (Convert a string into a number) bit.tostring (Convert a number into a string) bit.xor (Bitwise 'exclusive or') (Help topic: lua=bit.ashr) Documentation contents page

Lua function

bit.ashr

Summary

Shifts a number right, preserving sign

Prototype

n = bit.ashr (num, bits)

Description

This takes two arguments. The first is converted to signed 'long long' (64-bit integer), the second to unsigned 'long long' (64-bit unsigned integer). The first argument is shifted right the number of bits in the second argument.



Use this version for shifting signed numbers right, as it preserves the sign. (The other version, bit.shr, will shift the sign bit into the number part).



eg.




print (bit.ashr (-1024, 6)) --> -16