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Wednesday, 07 April 2010

I'm in the process of updating our C++0x thread library for VS2008, VC10, g++ 4.3 and g++ 4.4 to incorporate the changes to the C++0x thread library voted into the C++0x FCD. I'll be writing a blog post with more details in due course, but the big changes are:

Existing customers will get the new version as a free upgrade, but the rest of you can get a 50% discount if you subscribe to my blog by email. Just fill in your name and email address in the form below and be sure to click the confirmation link. You'll then receive future blog posts by email, along with an announcement and exclusive discount for the FCD edition of just::thread when it's released.

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Posted by Anthony Williams
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What are the differences between just::thread and boost::thread? Do you expect boost::thread to move towards C++0x compliance?

by Eric Holtman at 15:00:33 on Monday, 21 January 2019

Hi Eric,

There are several differences between just::thread and boost.thread. Firstly, there are some features and facilities in just::thread that are not in boost.thread:

* std::async

* std::atomic

* The std::chrono time interface

There are also a few differences in the functionality of the various components as just::thread has been tracking the C++0x draft, and with the upcoming release will match the FCD. The "notify at thread exit" facilities are among those.

Boost.thread supports thread interruption, which is not in C++0x, and so not in just::thread.

just::thread also features a deadlock detection mode which takes stack traces at crucial points so if a deadlock occurs then the library will trap into the debugger and/or display stack traces of all threads involved in the deadlock including where the relevant locks were acquired.

just::thread also takes full advantage of the C++0x facilities in the supported compilers, whereas boost.thread lags behind in some areas. just::thread is also better optimized because it is targeted at a few specific compilers and platforms rather than aiming for maximum portability.

Over time, boost.thread will move towards C++0x compliance. My personal energies are going to focus on updating just::thread in preference to boost.thread, but now the FCD is out the interface should be more stable and I might therefore have time to update boost.thread.

by Anthony Williams at 15:00:33 on Monday, 21 January 2019

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