Migrating from HP C++ (cfront) to HP aC++

The compiler lists Errors, Future Errors and Warnings. Expect to see more warnings, errors and future errors reported in your code, many related to standards based syntax. For more complete information, refer to:

HP aC++ Transition Guide at the following world wide web URL:
http://www.hp.com/go/hpc++/
The HP aC++ Online Programmer's Guide section Migrating from HP C++ (cfront) to HP aC++ contains a subset of the information found in the transition guide.
For general background information and experience, subscribe to the cxx-dev list server (like a notes group). Send a message to majordomo@cxx.cup.hp.com with the following command in the body of the message: subscribe list-name
Available list-names are as follows:
cxx-dev HP C++ Development Discussion List cxx-dev-announce HP C++ Development Announcements cxx-dev-digest HP C++ Development Discussion List Digest
cxx-dev-announce is also broadcast to cxx-dev, so there is only a need to subscribe to one of the lists. The digest also includes both cxx-dev and cxx-dev-announce.
For additional help or information about the list server, send a message to majordomo@cxx.cup.hp.com with the following command in the body of the message: help
For specific support questions, contact your HP support representative.
For generic C++ questions, see documents and URL's listed in the HP aC++ Online Programmer's Guide, Information Map.

Some migration issues are listed below:

The overload resolution for operators has been updated to reflect the latest version of the evolving draft standard. You may see some additional "ambiguous" function error messages displayed.
Most frequently reported migration issue: enum x { x1, }; The trailing comma is an error.

Changes to temporary creation for rvalues used to initialize return values which are const references now causes:

Error 652: Exact position unknown; near file, line#.
Initialization of the result <some const &> requires creating a
temporary, yet the temporary's lifetime ends with the return from the function.

You can bracket your HP aC++ changes with the macro defined by the draft standard. For example:
#if __cplusplus >= 199707L // HP aC++ Code #endif // __cplusplus >= 199707L
If you are using directed mode instantiation with the cfront based compiler, an awk script can be used to convert your file to an instantiation file that uses the explicit instantiation syntax. Note that explicit instantiation syntax can be used to instantiate a template and all of its member functions, an individual template function, or a template class's member function. The HP aC++ Online Programmer's Guide contains an example script.

Migrating from HP C++ (cfront) to HP aC++

Technical documentation

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