CPP 1.6 RTF Avatar
  1. OMG Issue

CPP1116 — Annotation for union discriminator name

  • Key: CPP1116-3
  • Status: closed  
  • Source: Airbus Group ( Mr. Oliver M. Kellogg)
  • Summary:

    For the switch of unions, the C++ mapping uses the name _d.
    It would be desirable to permit names that reflect the users' application domain.

      enum environment_t { air, water, land };
      union env_info_t switch (@switchname("environment") environment_t) {
        case air:
          air_info_t air_info;
        case water:

    The @switchname annotation would cause a getter/setter of the given name to be generated in addition to the _d() accessors.
    In the above example:

      void environment(environment_t);  // alias for _d(environment_t)
      environment_t environment() const;  // alias for _d()
  • Reported: CPP11 1.5 — Thu, 1 Apr 2021 14:23 GMT
  • Disposition: Deferred — CPP 1.6
  • Disposition Summary:

    Depends on an IDL spec change

    Defer until the IDL 4.3 RTF resolves IDL43-42.

  • Updated: Thu, 31 Mar 2022 19:32 GMT