Bit32.lshift

Available since: Gideros 2022.3
Class: bit32

Description

Returns a number whose bits have been logically shifted to the left by a given displacement.

(number) = bit32.lshift(x,disp)

Returns the number x shifted disp bits to the left. The number disp may be any representable integer. Negative displacements shift to the right. In any direction, vacant bits are filled with zeros. In particular, displacements with absolute values higher than 31 result in zero (all bits are shifted out).

For positive displacements, the following equality holds:

assert(bit32.lshift(b, disp) == (b * 2^disp) % 2^32)

Parameters

x: (number) value
disp: (number) displacement

Return values

Returns (number) result after bits left shifted

See also

Bitwise Operators