New paper: N3700, Hierarchical Data Structures and Related Concepts -- B. Reiter, R. Rivera

By Blog Staff | Jul 2, 2013 09:50 AM | Tags: experimental

Note: This paper explores potential future standardization directions and alternatives. It does not discuss or propose to amend the C++14 Committee Draft paper whose ballot is currently in progress.

A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3700

Date: 2013-06-22

Hierarchical Data Structures and Related Concepts for the C++ Standard Library

by B. Reiter, R. Rivera

Excerpt:

This paper proposes the addition of library components covering tree structures and related concepts to Programming Languages -- C++. The proposal is based on work towards a Boost Tree component library.

The library strives to cover many of the relevant aspects within the vast field linked to the notion of trees in computer science.

New paper: N3699, A proposal to add a generalized callable negator -- Tomasz Kamiński

By Blog Staff | Jul 2, 2013 09:45 AM | Tags: experimental

Note: This paper explores potential future standardization directions and alternatives. It does not discuss or propose to amend the C++14 Committee Draft paper whose ballot is currently in progress.

A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3699

Date: 2013-05-27

A proposal to add a generalized callable negator

by Tomasz Kamiński

Excerpt:

The standard negators not1 and not2 accept only unary and binary functors that define argument_type or first_argument_type and second_argument_type respectively, which make them unusable with results of standard library functions such as bind and mem_fn. Furthermore, with relation to N3421, they cannot be used with new operator functor specializations.

This proposal addresses the problem by introducing a template function not_fn that returns complement of arbitrary predicate.

New paper: N3694, Feature-testing recommendations for C++ -- Clark Nelson

By Blog Staff | Jul 2, 2013 09:40 AM | Tags: experimental

Note: This paper explores potential future standardization directions and alternatives. It does not discuss or propose to amend the C++14 Committee Draft paper whose ballot is currently in progress.

A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3694

Date: 2013-06-27

Feature-testing recommendations for C++

by Clark Nelson

Excerpt:

For the sake of improved portability between partial implementations of various C++ standards, WG21 (the ISO technical committee for the C++ programming language) recommends that implementers and programmers follow the guidelines in this document concerning feature-test macros.

Quick Q: Are there significant differences between boost::bind and std::bind? -- StackOverflow

By Blog Staff | Jul 1, 2013 01:58 PM | Tags: intermediate boost

A few minutes ago on SO:

Should I be seeing significant differences between std::bind and boost::bind?

I'm exploring the support for C++11 on the 4.7 branch of g++ (Ubuntu/Linaro 4.7.3-2ubuntu~12.04, to be specific) and I seem to be finding differences. In particular, if I comment out the #include of boost/bind.hpp and systematically replace occurrences of boost::bind with std::bind in the Boost ASIO async client example (taken from http://www.boost.org/doc/libs/1_45_0/doc/html/boost_asio/example/http/client/async_client.cpp), the program no longer compiles. Any explanation for this?

Boost 1.54.0 released!

By marshall | Jul 1, 2013 10:22 AM | Tags: intermediate boost advanced

Release 1.54.0 of the Boost C++ Libraries is now available.

These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications.
The Boost license encourages both commercial and non-commercial use.

This release contains five new libraries and numerous enhancements and bug fixes for existing libraries.

New Libraries:
Log: Logging library, from Andrey Semashev.
TTI: Type Traits Introspection library, from Edward Diener.
Type Erasure: Runtime polymorphism based on concepts.

For details, including download links, see http://www.boost.org/users/news/version_1.54.0

You can also download directly from SourceForge: http://sourceforge.net/projects/boost/files/boost/1.54.0/

To install this release on your system, see http://www.boost.org/doc/libs/release/more/getting_started/index.html

Thanks,

--The Boost release team

New paper: N3698, July 25-26 Santa Clara SG1 Meeting Announcement and Agenda -- Hans Boehm

By Blog Staff | Jun 30, 2013 08:22 PM | Tags: None

Note: This paper explores potential future standardization directions and alternatives. It does not discuss or propose to amend the C++14 Committee Draft paper whose ballot is currently in progress.

A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3698

Date: 2013-06-30

July 25-26 Santa Clara SG1 Meeting Announcement and Agenda

by Hans Boehm

Excerpt:

Location

Nvidia, 2701 San Tomas Expressway, Santa Clara, CA. Meet at Building E lobby.

Agenda

2 Discuss parallellism and concurrency extensions for future C++ standards

2.1 Discuss previously submitted concurrency proposals that were insufficiently addressed at the Bristol meeting.

2.2 Discuss other proposals.

C++-fest GoingNative 2013 announced: Sep 4-6, Redmond, WA, USA

By Blog Staff | Jun 29, 2013 06:42 PM | Tags: None

In his Build talk yesterday, Herb Sutter announced the GoingNative conference will be held again this year, just over two months from now.

Like last year, the conference will be keynoted by Bjarne Stroustrup, and has two solid days dedicated to current and important material about Standard C++ on all compilers and platforms, with talks from the developers of Visual C++, Clang, IBM xlC++, and other compilers. This year, the organizers are also adding a third day with a mix of ISO C++ and Visual C++ specific topics. In-room attendance is limited to about 300 people.

GoingNative 2013 (registration) (announcement video clip)

Keynotes: Bjarne Stroustrup, Herb Sutter

Speakers:

• Scott Meyers
• Andrei Alexandrescu (Facebook)
• Chandler Carruth (Google)
• Stephan T. Lavavej (Microsoft)
• Michael Wong (IBM)
• Sean Parent (Adobe)
• and more...

This is the only major public C++ event in North America in 2013 that isn't already sold out. Register today!

New paper: N3693, Working Draft, Technical Specification -- File System -- Beman Dawes

By Blog Staff | Jun 29, 2013 08:18 AM | Tags: experimental

Note: This paper explores potential future standardization directions and alternatives. It does not discuss or propose to amend the C++14 Committee Draft paper whose ballot is currently in progress.

A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3693

Date: 2013-06-28

Working Draft, Technical Specification -- File System

by Beman Dawes

Excerpt:

This Technical Specification specifies requirements for implementations of an interface that computer programs written in the C++ programming language may use to perform operations on file systems and their components, such as paths, regular files, and directories.

New paper: N3695, SG5: Transactional Memory Meeting Minutes 2013/03/11-2013/06/10 -- Michael Wong

By Blog Staff | Jun 29, 2013 07:59 AM | Tags: experimental

Note: This paper explores potential future standardization directions and alternatives. It does not discuss or propose to amend the C++14 Committee Draft paper whose ballot is currently in progress.

A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3695

Date: 2013-06-28

SG5: Transactional Memory (TM) Meeting Minutes 2013/03/11-2013/06/10

by Michael Wong

Excerpt:

Contents

Minutes for 2013/03/11 SG5 Conference Call ... 2

Minutes for 2013/04/08 SG5 Conference Call ... 10

Minutes for 2013/04/29 SG5 Conference Call ... 14

Minutes for 2013/05/13 SG5 Conference Call ... 23

Minutes for 2013/06/03 SG5 Conference Call ... 25

Minutes for 2013/06/10 SG5 Conference Call ... 30

New paper: N3696, Proposal to extend atomic with priority update functions -- Bronek Kozicki

By Blog Staff | Jun 29, 2013 07:14 AM | Tags: experimental

Note: This paper explores potential future standardization directions and alternatives. It does not discuss or propose to amend the C++14 Committee Draft paper whose ballot is currently in progress.

A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N3696

Date: 2013-06-26

Proposal to extend atomic with priority update functions

by Bronek Kozicki

Excerpt:

Paper [1] identifies a range of concurrent algorithms which, when implemented using the above described primitive, exhibit very good performance characteristics. If such algorithms were to become more popular in C++ , it would be useful to provide the primitive in <atomic>, rather than rely on the user to "Bring Your Own". This would serve the purpose of establishing a primitive which can be used for reasoning about, writing and reading of such concurrent algorithms, as well as allow users to automatically benefit from the hardware support for certain specializations of these operations, where it is available [2].