Public bug reported:
We’re renaming the rotation operators from <<< (ROL) and >>> (ROR) to ^<
(ROL) and ^> (ROR) to make space for >>> as another right-shift
operator, to be able to map both SHR and SAR into shell, and for (as
izabera requested) better consistency wrt. other languages.
Unfortunately, for the languages separating this operator, the mapping is as
follows:
• SHL <<
• SHR >>>
• SAR >>
For C, >> is SAR for signed types and SHR for unsigned types. In POSIX,
arithmetics are always signed and use C semantics.
Therefore, R53 will document >> is to be renamed into >>> as SHR, and
R54 will do that and newly introduce >> as SAR operator. (This is
consistent with the $KSH_VERSION bump already done.)
** Affects: mksh
Importance: High
Assignee: Thorsten Glaser (mirabilos)
Status: Triaged
** Changed in: mksh
Status: New => Triaged
** Changed in: mksh
Importance: Undecided => High
** Changed in: mksh
Assignee: (unassigned) => Thorsten Glaser (mirabilos)
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https://bugs.launchpad.net/bugs/1608505
Title:
Adjust shift-right operator for next and subsequent release
Status in mksh:
Triaged
Bug description:
We’re renaming the rotation operators from <<< (ROL) and >>> (ROR) to
^< (ROL) and ^> (ROR) to make space for >>> as another right-shift
operator, to be able to map both SHR and SAR into shell, and for (as
izabera requested) better consistency wrt. other languages.
Unfortunately, for the languages separating this operator, the mapping is as
follows:
• SHL <<
• SHR >>>
• SAR >>
For C, >> is SAR for signed types and SHR for unsigned types. In
POSIX, arithmetics are always signed and use C semantics.
Therefore, R53 will document >> is to be renamed into >>> as SHR, and
R54 will do that and newly introduce >> as SAR operator. (This is
consistent with the $KSH_VERSION bump already done.)
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