Difference between revisions of "Bit32.rrotate"
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=== Description === | === Description === | ||
Returns a number after its bits have been rotated to the right by a given number of times. | Returns a number after its bits have been rotated to the right by a given number of times. | ||
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(number) = bit32.rrotate(x,disp) | (number) = bit32.rrotate(x,disp) | ||
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Returns the number x rotated disp bits to the right. | Returns the number x rotated disp bits to the right. | ||
The number disp may be any representable integer. For any valid displacement, the following identity holds: | The number disp may be any representable integer. For any valid displacement, the following identity holds: | ||
| − | < | + | <syntaxhighlight lang="lua"> |
assert(bit32.rrotate(x, disp) == bit32.rrotate(x , disp % 32)) | assert(bit32.rrotate(x, disp) == bit32.rrotate(x , disp % 32)) | ||
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'''Negative displacements rotate to the left''' | '''Negative displacements rotate to the left''' | ||
Latest revision as of 14:27, 13 July 2023
Available since: Gideros 2022.3
Class: bit32
Description
Returns a number after its bits have been rotated to the right by a given number of times.
(number) = bit32.rrotate(x,disp)
Returns the number x rotated disp bits to the right.
The number disp may be any representable integer. For any valid displacement, the following identity holds:
assert(bit32.rrotate(x, disp) == bit32.rrotate(x , disp % 32))
Negative displacements rotate to the left
Parameters
x: (number) value
disp: (number) displacement
Return values
Returns (number) result after bits right rotation
See also
