CPP 1.3 MAILINGLIST Avatar
  1. OMG Issue

CPP13 — Issue with valuetypes & inout/out parameters

  • Key: CPP13-36
  • Legacy Issue Number: 3359
  • Status: open  
  • Source: Floorboard Software ( Jonathan Biggar)
  • Summary:

    The CORBA 2.3 C++ specification, section 1.22 states that valuetypes
    passed as in parameters to an invocation of an object are copied, even
    if the object is collocated with the caller. It does not make this
    statement for inout or out parameters (or return results), which
    strongly suggests that valuetype copying is not necessary. In fact, the
    text for valuetype inout parameters strongly suggests that copying is
    not performed.

    I think this is wrong and inout & out valuetypes should be copied as
    well (inout parameters should be copied before and after the invocation,
    while out and return values should be copied after the invocation
    completes.) Without the copies, call transparency will be broken and
    the client can distinguish between a local and a remote call.

  • Reported: CPP 1.1 — Thu, 24 Feb 2000 05:00 GMT
  • Updated: Fri, 6 Mar 2015 20:57 GMT