Hi all, On 19.02.2011, at 02:30, Martin Schulz wrote:

- Naming: people wanted us to move into the MPI namespace - Which prefix should we use? - How do we distinguish the semantics?

Following the Wikipedia entry to C99 I looked up the PDF document of the C standard, and there on page 20 on the bottom (section 5.2.4.1) it states: http://www.open-std.org/jtc1/sc22/WG14/www/docs/n1256.pdf "The implementation shall be able to translate and execute at least one program that contains at least one instance of every one of the following limits […] - 31 significant initial characters in an external identifier (each universal character name specifying a short identifier of 0000FFFF or less is considered 6 characters, each universal character name specifying a short identifier of 00010000 or more is considered 10 characters, and each extended source character is considered the same number of characters as the corresponding universal character name, if any) …" Aside from comment in parentheses, which I admit I don't understand, I think it says that to guarantee compiler support, we have to stick to the 30/31 character limit already stated in the MPI 2.2 standard, right? Cheers, Marc-Andre PS: I also checked the draft of C1x with the same results, so I guess they don't plan to change it. -- Marc-Andre Hermanns German Research School for Simulation Sciences GmbH c/o Laboratory for Parallel Programming 52056 Aachen | Germany Tel +49 241 80 99753 Fax +49 241 80 6 99753 Web www.grs-sim.de Members: Forschungszentrum Jülich GmbH | RWTH Aachen University Registered in the commercial register of the local court of Düren (Amtsgericht Düren) under registration number HRB 5268 Registered office: Jülich Executive board: Prof. Marek Behr Ph.D. | Dr. Norbert Drewes