- Boost - lists.preview.boost.org

How to handle contributions from anonymous?
by Hans Dembinski 27 Sep '19

27 Sep '19

Hi all, I got a PR from a contributor who prefers to remain anonymous. The person created new files and instead of putting a real name, the person added just initials. I am talking to the person to see whether they can be convinced to give a real name. Any advice on how to handle this? My feeling is that a copyright notice without a real name is illegal. I could publish the code in my name, but then a documented transfer of copyright from the contributor to me is missing, which then puts me in a vulnerable position. Any thoughts? Best regards, Hans

5 6

MS STL now open source (and using Boost)
by John Maddock 26 Sep '19

26 Sep '19

Microsoft's standard library is now in the process of going open source (the code is there, but not the tests yet), see : https://devblogs.microsoft.com/cppblog/open-sourcing-msvcs-stl/ Interestingly they're using the Math library's special functions en-mass for enhanced <cmath> support, and a quick grep of the code turns up other references to Boost, though I haven't identified the libraries they've borrowed from yet. Hopefully this means that in the long turn we'll see patches and enhancements flowing in both directions for the benefit of all. John. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

11 14

more (hyper)complex types
by Gero Peterhoff 26 Sep '19

26 Sep '19

Hallo Developers, Hello John, I'm missing the (hyper)complex types in boost::math: - dual, i²=0 https://en.wikipedia.org/wiki/Dual_number - acomplex (anormal complex), i²=1 https://en.wikipedia.org/wiki/Split-complex_number - sedenion, https://en.wikipedia.org/wiki/Sedenion and the arithmetic functions for this types. Can you provide it? That would be great! thx Gero

3 2

Memory leak in add_options
by Vinitha Anish(UST,IN) 24 Sep '19

24 Sep '19

Hi , Our static analyzer report an memory leak with add_options . We use namespace po = boost::program_options; po::options_description desc("Options"); desc.add_options() ("name", po::value<std::string>(), ...) // add option ; The issue reported in boost library file value_semantic.hpp:199 template<class T> typed_value<T>* value(T* v) { typed_value<T>* r = new typed_value<T>(v); return r; } memory is dynamically allocated here and return at line 201. Can anyone suggest how do we handle this memory leak.

1 0

How to bind boost::asio::ip::tcp::socket to a local endpoint with a sperific local IP address?
by JH 24 Sep '19

24 Sep '19

Hi, I have searched the documents, but still could not clarify how to bind the socket to a local IP address, which API could I add my local IP address to it? socket.bind(boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), 12345)); ....... boost::asio::ip::tcp::resolver::query query(remoteServerIPAddress, portNumber); Thank you. Kind regards, - jh

3 3

Source code of boost-commitbot git user
by LE GARREC Vincent 24 Sep '19

24 Sep '19

Hi, I work on a company where the architecture of the software is closed to boost : one super project and lots of submodules. We are spending lots of time with the superproject by doing "fetch/merge/checkout" every time because someone else updated a submodule just 15 minutes ago. In boost, it looks like the superproject is updated by Travis (or maybe a git post hook ?). Does this script is available somewhere? It will really help us and improved your time. I took a look but I didn't find anywhere the source code. Thanks for your help, Best regard, Vincent

1 0

clang-9 on travis?
by John Maddock 23 Sep '19

23 Sep '19

Has anyone figured out how to install clang-9 on travis? I'm seeing: Adding APT Sources Disallowing sources: llvm-toolchain-xenial-9 See https://travis-ci.org/boostorg/multiprecision/jobs/588146074 With .travis.yml containing: - os: linux env: TOOLSET=clang COMPILER=clang++-9 CXXSTD=c++17 TEST_SUITE=misc addons: apt: packages: - clang-9 - libgmp-dev - libmpfr-dev - libmpc-dev - libmpfi-dev sources: - ubuntu-toolchain-r-test - llvm-toolchain-xenial-9 Which works fine for clang-8. Any ideas anyone? Thanks! John. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

2 2

Call for Papers - ICITST-2019 - London, UK
by Galina Akmayeva, ICITST 20 Sep '19

20 Sep '19

CALL FOR PAPERS! ************************************************************ The 14th International Conference for Internet Technology and Secured Transactions (ICITST-2019) Venue: CCT Venues-Docklands London, UK December 9-11, 2019 www.icitst.org ************************************************************ The ICITST is an international refereed conference dedicated to the advancement of the theory and practical implementation of secured Internet transactions and to fostering discussions on information technology evolution. The ICITST aims to provide a highly professional and comparative academic research forum that promotes collaborative excellence between academia and industry. The ICITST-2019 invites research papers that encompass conceptual analysis, design implementation and performance evaluation. The topics in ICITST-2019 include but are not confined to the following areas: Internet Applications and Technology: * Internet Architecture * Internet of things * Broadband Access Technologies * Application Agents * Boundary Issues of Internet Security * Database Management * Data Models for Production Systems and Services * Artificial Intelligence and Expert Systems * IPSec Quality of Service * Knowledge Management * Embedded Systems * Defence Systems Ubi/Cloud Computing: * Authentication and Access Control for Data Protection in Ubi/Cloud Computing * Context-Awareness and its Data Mining for UbiCom * Data Grids * Distributed Information Systems * Human-Computer Interface and Interaction for UbiCom * Ubiquitous Systems * USN/RFID Service * Smart Homes and its Business Model for UbiCom Service * Security and its Data Management for UbiCom * Peer to Peer Data Management * New Novel Mechanism and Application for Ubi/Cloud Computing Information Security: * Trust, Privacy and Data Security * Network Security Issues and Protocols * Security Challenges and Content Authoring * Cryptography * Secure Communications * Authentication Techniques * Chaos-based Data Security * MANET Security * Wireless Sensor Network Security * Organization Considerations in Security Policy Formulation and Implementations * Digital Forensics and Crimes * Biometrics * Cyber Security Multimedia and Web Services: * Intelligent Multimedia and its Data Management * Multimedia Information Systems * Multimedia Security * Web Databases * Web Metrics and its Applications * Web Mining including Web Intelligence and Web 3.0. * Web Services * XML and other extensible languages * Semantic Web and Ontology Bitcoin *Challenges and its Roadmap *Crypto-Assets *Current State of Privacy in Bitcoin *Decentralised Technology *Data Licensing *Digital Currencies *Fintechs *Future Payment Implications *Standardisation-Related Issues *Technical, Business and Regulatory Aspects *Technology-based Risks Infonomics and e-Technology: * Infonomics * Information Visualization * Information Management * Information Quality * Technology-Enabled Information * e-Learning * e-Commerce * e-Business * e-Government * e-Society * System Design and Security for e-Services * Synchronizing e-Security Submissions: *You can submit your abstract via email at abstract(a)icitst.org *You can submit your extended abstract or paper online at http://icitst.org/paper-submission/ or email it to extendedabstract(a)icitst.org or papers(a)icitst.org *You can submit your poster via email at posters(a)icitst.org *You can submit your workshop or tutorial proposal via email at workshop-tutorial(a)icitst.org *You can submit your speaker's proposal online at https://icitst.org/call-for-speakers/ or via email at speakers(a)icitst.org Submission Dates: *Abstract and Extended Abstract Submission Date: September 20, 2019 *Notification of Abstract and Extended Abstract Acceptance/Rejection: September 25, 2019 *Proposal for Industrial Presentation: September 20, 2019 *Notification of Industrial Presentation Acceptance: September 25, 2019 *Full Paper Submission Date: September 27, 2019 *Notification of Paper Acceptance/Rejection: October 10, 2019 *Workshops and Tutorials Submission Date: September 20, 2019 *Notification of Workshop and Tutorial Acceptance: September 25, 2019 *Special Track Submission Date: September 20, 2019 *Notification of Special Track Acceptance: September 25, 2019 *Poster/Demo Submission Date: September 20, 2019 *Notification of Poster/Demo Acceptance: September 25, 2019 *Camera Ready Paper Due: November 15, 2019 *Early Registration Deadline: October 25, 2019 *Late Registration Deadline: November 25, 2019 *Conference Dates: December 9-11, 2019 For more details, please contact [1]info(a)icitst.org References 1. mailto:info@icitst.org

1 0

[multiprecision] how to catch both underflow and overflow
by blacksmith＠peerfreedom.org 20 Sep '19

20 Sep '19

Hello, when using boost multiprecision [1] to execute even simple math operations like addition x = x+1 or x-1 it seems on mathematical error it might throw either std::range_error or std::overflow_error or std::underflow_error . Sadly it seems that it's not the case that overflow and underflow are child classes of range_error. So, in more complex math expression to detect any math error you must write catch(....) for all 3 of them (because just catching common std::runtime_error would be too broad and might hide some unrelated error). Is there some better way for this? Perhaps boost should introduce a common type for math error and throw own under/over/range errors that inherit from std's one (for compatibility) and also inherit from boost::math_range_error to allow catch (boost::math_range_error) // either over/under flow or other math [1] for example using type like: boost::multiprecision::number< boost::multiprecision::cpp_int_backend< 64-1, 64-1, boost::multiprecision::signed_magnitude, boost::multiprecision::checked, void> > -- GPG: 31A8 55AA 07BE 5145 65EB 2292 65A6 1F7A 9781 DF89

3 2

Requesting endorsements of Boost.STLInterfaces for review
by Zach Laine 20 Sep '19

20 Sep '19

As mentioned a couple of weeks ago, I started a small library that was an updated iterator_facade. It is now a still-smallish library called stl_interfaces that includes a pre-C++20 implementation of view_interface, and analogous templates iterator_interface (a cross between Boost.Iterator's iterator_facade and iterator_adaptor), and container_interface. Each of these makes it easier to write a view, iterator, or container, respectively. Using container_interface, I was able to write a version of static_vector in which I implemented only 21 member functions, and the template provided the other 40(!) functions. The library is C++14 and later. There is an inline v1 namespace for the C++14 implementations, and an experimental non-inline v2 namespace with implementations using C++20 standard concepts. The part using C++20 concepts requires GCC 8 or 9, and cmcstl2 (more info on that on the Github page). Github page: https://github.com/tzlaine/stl_interfaces Online docs: https://tzlaine.github.io/stl_inteTherfaces/doc/html/index.html <https://tzlaine.github.io/stl_interfaces/doc/html/index.html> Oh, and if you're willing to act as review manager, please let me know. Zach

9 17