View source code
Display the source code in core/bitop.d from which this page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using local clone.

Function core.bitop.ror

Bitwise rotate value left (rol) or right (ror) by count bit positions.

T ror(T) (
  in T value,
  in uint count
) pure
if (__traits(isIntegral, T) && __traits(isUnsigned, T));

T ror(uint count, T) (
  in T value
) pure
if (__traits(isIntegral, T) && __traits(isUnsigned, T));

Example

ubyte a = 0b10101010U;
ulong b = ulong.max;

writeln(rol(a, 1)); // 0b01010101
writeln(ror(a, 1)); // 0b01010101
writeln(rol(a, 3)); // 0b01010101
writeln(ror(a, 3)); // 0b01010101

writeln(rol(a, 0)); // a
writeln(ror(a, 0)); // a

writeln(rol(b, 63)); // ulong.max
writeln(ror(b, 63)); // ulong.max

writeln(rol!3(a)); // 0b01010101
writeln(ror!3(a)); // 0b01010101

Authors

Don Clugston, Sean Kelly, Walter Bright, Alex Rønne Petersen, Thomas Stuart Bockman

License

Boost License 1.0