bit.shl
Shifts a number left
Prototype
n = bit.shl (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 left the number of bits in the second argument.
You can use this for signed or unsigned numbers, as the sign bit will still be preserved.
eg.
You can use this for signed or unsigned numbers, as the sign bit will still be preserved.
eg.
print (bit.shl (4, 6)) --> 256
Lua functions
- bit.ashr - Shifts a number right, preserving sign
- bit.band - Bitwise 'and'
- bit.bor - Bitwise 'or'
- bit.clear - Clears one or more bits
- bit.mod - Bitwise 'modulus' (remainder after integer divide)
- bit.neg - Bitwise 'negate' (ones complement)
- bit.shr - Shifts a number right
- bit.test - Bitwise 'test'
- bit.tonumber - Convert a string into a number
- bit.tostring - Convert a number into a string
- bit.xor - Bitwise 'exclusive or'
Topics
- Lua LPEG library
- Lua PCRE regular expression functions
- 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 script extensions
- Lua string functions
- Lua syntax
- Lua table functions
- Lua utilities
- Scripting callbacks - plugins
- Scripting