[Bug c++/54930] New: Add warning switch for "returning reference to temporary" and similar

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54930



             Bug #: 54930

           Summary: Add warning switch for "returning reference to

                    temporary" and similar

    Classification: Unclassified

           Product: gcc

           Version: 4.6.4

            Status: UNCONFIRMED

          Keywords: diagnostic

          Severity: enhancement

          Priority: P3

         Component: c++

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: r...@gcc.gnu.org





The various warnings issued by maybe_warn_about_returning_address_of_local()

are enabled by default, so there is no way to make them (and only them) into

errors.



If they were controlled by a switch such as -Wreturn-local-addr (enabled by

default) then they could be promoted to an error with -Werror=return-local-addr

(or disabled with -Wno-return-local-addr for the foolish.)