JTC1/SC22/WG21 N3105

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Business Plan and Convener's Report
ISO/IEC JTC1/SC22/WG21 (C++)

Document: ISO/IEC JTC1/SC22/WG21 N3105 = PL22.16/10-0095

Period Covered: September 2009 - September 2010

Submitted By: Convener, ISO/IEC JTC1/SC22/WG2l
Herb Sutter
Microsoft Corporation
1 Microsoft Way
Redmond WA 98052
Email: hsutter@microsoft.com
Tel: +1-425-707-6533

1. MANAGEMENT SUMMARY

1.1 JTC1/SC22/WG21 STATEMENT OF SCOPE

Development and maintenance of ISO/IEC Standards related to the
programming language C++.

1.2. PROJECT REPORT

1.2.1. COMPLETED PROJECTS

JTC 1.22.32- Programming Language C++ - This project was delivered by the
publishing of ISO/IEC 14882:1998 (first standard) and :2003 (minor revision).

JTC 1.22.18015 Information Technology - Programming Languages Technical
Report on C++ Performance (Technical Report Type 3)

JTC 1.22.19768 Information Technology - Programming Languages Technical
Report of Type 2 on C++ Library Extensions (based on ISO/IEC 14882)

JTC 1.22.24733 Information Technology - Programming Languages Technical
Report of Type 2 on Extensions for the programming language C++ to support
decimal floating point arithmetic
(Note: DTR ballot completed 2010-04-27)

JTC 1.22.29124 Programming Language C++ - International Standard on
Special Math Functions
(Note: Submitted to ITTF for publication)

1.2.2. PROJECTS UNDERWAY

JTC 1.22.32 - Work is in progress on the first major revision.

1.2.3. CANCELLED PROJECTS

None.

1.2.4. COOPERATION and COMPETITION

Where appropriate, WG21 has established liaisons with other SC22 and SC22
liaison organizations' working groups. There is no direct competition with
any other current SC22 working group. Related work is being done in
SC22/WG14 (C) with broad WG21 liaison.

2. PERIOD REVIEW

2.1. MARKET REQUIREMENTS

ISO C++ remains a widely-used foundation technology, well-received in
the marketplace. WG21 is developing a revision of ISO 14882. Once that
revision is complete, WG21 intends to continue work on a second Technical
Report on C++ Library Extensions and/or another revision of ISO 14882.

2.2. ACHIEVEMENTS

JTC 1.22.29124 Programming Language C++ - International Standard on
Special Math Functions is complete and being published.

JTC 1.22.32 - An FCD was ballotted in 2010.

2.3. RESOURCES

WG21 meets three times per year in co-located technical sessions with the
US committee J16. For most of the past decade, WG21 has timed its technical
sessions to catenate with WG14, allowing those technical experts that
would like to attend both technical sessions the opportunity to do so.
(The convener of WG21 wishes to thank the convener of WG14 for his
much-appreciated efforts at harmonious liaison. This catenation continues
periodically, although no longer for every meeting as WG21 and WG14 now
have a different meeting frequency.)

Sixteen countries participate by attending these meetings or by being
involved in the technical discussions that take place over the
reflector. The countries are: Austria, Canada, Denmark, Finland, France,
Germany, Ireland, Islamic Republic of Iran, Japan, Netherlands, DPR of
Korea, Russian Federation, Sweden, Switzerland, United Kingdom, and United
States of America. WG21 has been monitoring the cross-language standards
activities, and made use of the ISO/IEC JTC1/SC22 guidelines on extended
characters.

Liaisons:

SC22/WG14 - C
Steve Clamage (Oracle, USA)
Michael Wong (IBM, USA)
Clark Nelson (Intel, USA)
P.J. Plauger (Dinkumware, USA)
Tana Plauger (Dinkumware, USA)
Tom Plum (Plum Hall, USA)

3. FOCUS NEXT WORK PERIOD

3.1. DELIVERABLES

Technical work on a major revision of JTC 1.22.14882 is underway, and WG21
expects to issue a disposition of comments on its FCD, and also an FDIS,
after its March 2011 meeting.

3.2. STRATEGIES

WG21 members have been meeting in subgroups and coordinating work between
meetings via e-mail reflectors, teleconferences, and wiki to develop
responses to the National Body comments on the FCD.

3.3. RISKS

In early 2009, there was concern about maintaining both the draft feature
list and schedule because compiler developers have not implemented new
language features as rapidly as previously projected. Since then, in
response to national body comments on the first CD, we have removed the
largest and most risky language feature (concepts) and gained experience
with features in shipping complers. There is now low risk to producing an
acceptable revision of the C++ Standard in 2011.

3.4. OPPORTUNITIES

Nothing new to report.

3.5. WORK PROGRAM PRIORITIES

Once the revision of 14882 is complete, WG21 intends to continue
work on a second Technical Report on C++ Library Extensions and/or
another revision of ISO 14882.

4. OTHER ITEMS

4.1. POSSIBLE ACTION REQUESTS AT FORTHCOMING PLENARY

None are anticipated.

4.2 PROJECT EDITORS

The following individuals have been appointed project editors and
backup Project editors:

JTC1.22.32, Programming Language C++:
Pete Becker (Project Editor)
Lawrence Crowl (Backup Project Editor)

JTC1.22.24733, Technical Report on Extensions to Support Decimal Floating
Point Arithmetic
Robert Klarer (Project Editor)
Pete Becker (Backup Project Editor)

JTC1.22.29124 Programming Language C++ - Special Math Functions
Walter Brown (Project Editor)
Pete Becker (Backup Project Editor)

4.3 ELECTRONIC DOCUMENT DISTRIBUTION

WG21 has conducted much of its detailed technical discussion using the
email reflector provided by the UK Association for C and C++ Users (ACCU).

WG21 uses a secure wiki maintained by Dinkumware, Ltd. This secure wiki
is used for quick exchange of documents during and between meetings.

WG21 also has an FTP and Web site at www.open-std.org/jtc1/sc22/wg21
provided by courtesy of Keld Simonsen. WG21 is now providing all the
appropriate committee documents on the Committee Web site, eliminating
the need for paper mailings.

4.4 RECENT MEETINGS

No Date Location; Standards Body, Corporate Sponsor(s)
-- ----------------- -----------------------------------------------------------------------
18 1997 Mar 9-14 Nashua, NH, USA; ANSI, Digital Equip. Corp.
19 1997 Jul 13-18 Cambridge, UK; BSI, Programming Research
20 1997 Nov 9-14 New Jersey, USA; ANSI, AT&T
21 1998 Mar 8-13 Sophia Antipolis, FR; AFNOR, Ilog
22 1998 Oct 6- 9 Santa Cruz, CA, USA; ANSI, SGI, Plum Hall, Perennial
23 1999 Apr 11-16 Dublin, Ireland; Irish Standards, O'Riordan
24 1999 Oct 20-26 Kona, Hawaii, USA; ANSI, Plum Hall
25 2000 Apr 17-21 Tokyo, Japan; ITSCJ, NEC
26 2000 Oct 23-27 Toronto, ON, Canada; Standards Canada, IBM, PeerDirect, Xerox
27 2001 Apr 30-May 4 Copenhagen, Denmark; Danish Standards
28 2001 Oct 21-26 Redmond, WA, USA; ANSI, Microsoft
29 2002 Apr 21-26 Curacao, Netherlands Antilles; Netherlands
30 2002 Oct 22-27 Santa Cruz, CA USA; ANSI, Dinkumware
31 2003 Apr 06-11 Oxford, UK; BSI
32 2003 Oct 26-31 Kona, HI, USA; ANSI, Plum Hall
33 2004 Mar 21-26 Sydney, Australia: Standards Australia, Whitesmiths
34 2004 Oct 17-22 Redmond, WA, USA; ANSI, Microsoft
35 2005 Apr 10-15 Lillehammer, Norway; Norwegian Standards
36 2005 Oct 2- 8 Mt. Tremblant, PQ, Canada; Standards Canada, Maurya, Sun, Intel
37 2006 Apr 2- 7 Berlin, Germany; DIN, SAP
38 2006 Oct 15-20 Portland, OR, USA; ANSI, Intel
39 2007 Apr 15-20 Oxford, UK; BSI, ACCU, Google
40 2007 Jul 15-20 Toronto, Canada; CSA, IBM
41 2007 Sep 30-Oct 6 HI, USA; ANSI, Plum Hall
42 2008 Feb 24-29 Bellevue, WA, USA; ANSI, Microsoft
43 2008 Jun 8-13 Sophia Antipolis, France; AFNOR, Texas A&M University
44 2008 Sep 14-20 San Francisco, CA, USA; ANSI, Google
45 2009 Mar 2- 6 Summit, NJ, USA; ANSI, Edison Design Group, Dinkumware, Sun, Plum Hall
46 2009 Jul 13-18 Frankfurt, Germany; DIN, Interactive Data Managed Solutions
47 2009 Oct 19-24 Santa Cruz, CA, USA; ANSI, Dinkumware, EDG, Gimpel Software, Bloomberg
48 2010 Mar 8-13 Pittsburgh, PA, USA; ANSI, CERT
49 2010 June 18 Telecon; ANSI, Microsoft
50 2010 July 23 Telecon; ANSI, Microsoft

4.5 FUTURE MEETINGS

51 2010 Aug 2- 7 Rapperswil, Switzerland; HSR Hochschule für Technik
52 2010 Nov 8-13 Batavia, IL, USA; ANSI, Fermilab
53 2011 Mar 21-26 Madrid, Spain; AENOR, Telefónica I+D