ACCU 2014 registration is open (April 8-12, Bristol, UK)
Registration is now open for ACCU 2014:
ACCU 2014
April 8-12, 2014
Bristol, UK
See the schedule's C++ highlights for 17+1 reasons for a C++ developer to attend this year.
June 16-21, Sofia, Bulgaria
September 13-19, Aurora, CO, USA
October 25, Pavia, Italy
November 6-8, Berlin, Germany
November 16-21, Kona, HI, USA
By Blog Staff | Jan 19, 2014 11:33 AM | Tags: intermediate basics advanced
Registration is now open for ACCU 2014:
ACCU 2014
April 8-12, 2014
Bristol, UK
See the schedule's C++ highlights for 17+1 reasons for a C++ developer to attend this year.
By Blog Staff | Jan 19, 2014 11:29 AM | Tags: None
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: N3858
Date: 2014-01-19
Resumable Functions
by Niklas Gustafsson, Deon Brewis, Herb Sutter
Excerpt:
While presenting a proposal that can be adopted or rejected in isolation, this document is related to N3857. The reader is advised to read both as a unit and to consider how the two build on each other for synergy. Reading them in their assigned numeric order is advised.
New in this version: minor changes to examples, explanatory text; make the section on generators clearer.
By Blog Staff | Jan 19, 2014 10:02 AM | Tags: None
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: N3848
Date: 2014-01-18
Working Draft, Technical Specification on C++ Extensions for Library Fundamentals
by Jeffrey Yasskin
Excerpt:
This technical specification describes extensions to the C++ Standard Library (1.2). These extensions are classes and functions that are likely to be used widely within a program and/or on the interface boundaries between libraries written by different organizations.
... The goal of this technical specification it to build more widespread existing practice for an expanded C++ standard library.
By Blog Staff | Jan 19, 2014 09:57 AM | Tags: None
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: N3851
Date: 2014-01-17
Multidimensional bounds, index and array_view
by Łukasz Mendakiewicz, Herb Sutter
Excerpt:
Programs performing computations on multidimensional data are relatively common (e.g. operations on dense matrices or image processing) yet there is no standardized approach in C++ to express the concept of dimensionality. This document aims to fill this gap in the Standard C++ Library by proposing the following closely related types:
bounds
andindex
as means of defining and addressing multidimensional discrete spaces.array_view
andstrided_array_view
as multidimensional views on contiguous or strided memory ranges, respectively.bounds_iterator
providing interoperability with iterator-based algorithms.While the proposal builds on Microsoft experience of implementing and using similar
extent
,index
andarray_view
types in their data parallel programming model -- C++ AMP [1] -- we believe that these concepts will also benefit a wider C++ community.
By Blog Staff | Jan 19, 2014 09:53 AM | Tags: None
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: N3832
Date: 2014-01-17
Task Region
by Pablo Halpern, Arch Robison, Hong Hong, Artur Laksberg, Gor Nishanov, Herb Sutter
Excerpt:
This paper introduces C++ library functions
task_region
,task_run
andtask_wait
that enable developers
to write expressive and portable parallel code....
A previous proposal, N3711, was presented to the Committee at the Chicago meeting in 2013. N3711 closely
follows the design of the PPL/TBB with slight modifications to improve exception safety.This proposal adopts a simpler syntax than N3711 -- one that eschews a named object in favor of three
namespace-scoped functions. It improves N3711 in the following ways:
- The exception handling model is simplified and more consistent with normal C++ exceptions.
- Strict fork-join parallelism is now enforced at compile time.
- The syntax allows scheduling approaches other than child stealing.
We aim to converge with the language-based proposal for low-level parallelism described in N3409 and related documents.
By Blog Staff | Jan 19, 2014 09:45 AM | Tags: None
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: N3850
Date: 2014-01-17
Working Draft, Technical Specification for C++ Extensions for Parallelism
by Jared Hoberock
Excerpt:
This Technical Specification describes requirements for implementations of an interface that computer
programs written in the C++ programming language may use to invoke algorithms with parallel execution.
The algorithms described by this Technical Specification are realizable across a broad class of computer
architectures.... The goal of this Technical Specification is to build widespread existing practice for parallelism in the C++ standard algorithms library.
By Blog Staff | Jan 19, 2014 09:40 AM | Tags: None
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: N3857
Date: 2014-01-16
Improvements to std::future
and Related APIs by Niklas Gustafsson, Artur Laksberg, Herb Sutter, Sana Mithani
Excerpt:
This proposal is an evolution of the functionality of
std::future
/std::shared_future
. It details additions which can enable wait free compositions of asynchronous operations.This document supersedes N3784. Several typos in the code samples have been fixed, and a small editorial change made in the Technical Specification section.
By Blog Staff | Jan 19, 2014 09:34 AM | Tags: None
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: N3880
Date: 2014-01-16
Improving the Verification of C++ Programs
by Michael Price
Excerpt:
Following is a list of ideas to serve as a starting point for further discussion. They are ordered roughly in their perceived difficulty/impact on the language and tools.
- Capabilities for better
static_assert
messages- Better support for verifying API design decisions (i.e. testing compile-time failures)
- Discrete classification of causes of ill-formedness
- Better source code contextual information capabilities (as called for by Reflection study group)
- A
std::test_exception
(bikeshed) type to serve as a basis for...- An full-featured assertion library
- Registration of code to be run during verification
- Automated generation of verification programs
By Blog Staff | Jan 17, 2014 09:19 AM | Tags: None
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: N3873
Date: 2014-01-20
Improved insertion interface for unique-key maps
by Thomas Köppe
Excerpt:
The existing interface of unique-keyed map containers (
std::map
,std::unordered_map
) is slightly underspecified, which makes certain container mutations more complicated to write than necessary. This proposal is to add new specialized algorithms:
emplace_stable()
: if the key already exists, does not insert and does not modify the arguments.emplace_or_update()
: inserts or updates the mapped element if the key already exists.
By Blog Staff | Jan 16, 2014 12:57 PM | Tags: None
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 numbers: N3836-38
Date: 2014-01-16
C++ Standard Evolution Active Issues List (Revision R05)
C++ Standard Evolution Completed Issues List (Revision R05)
C++ Standard Evolution Closed Issues List (Revision R05)
by Ville Voutilainen
Excerpt:
The purpose of this document is to record the status of issues which have come before the Evolution Working Group (EWG) of the INCITS PL22.16 and ISO WG21 C++ Standards Committee. Issues represent potential defects in the ISO/IEC IS 14882:2003(E) document, and proposed extensions to it.