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[process] Couple of issues
by Sebastian Messerschmidt 02 Jan '18

02 Jan '18

Hi, I'm using boost 1.64 on Windows7 with VisualStudio 2015 64bit. While testing boost.process I've encountered some issues that I'm not able to resolve: 1. Passing of multiple parameters: Consider this minimal example: <code> void test_sync() { try { bp::ipstream is; bp::child c(bp::search_path("ping"), "127.0.0.1 -t", bp::std_out > is); std::string line; while (c.running() && std::getline(is, line) && !line.empty()) { std::cerr << line << std::endl; } c.wait(); } catch (const std::exception& e) { std::cerr << "Error in execution: " << e.what(); } } </code> This doesn't correctly execute "ping 127.0.0.1 -t", instead it will act like "ping 127.0.0.1". I could not find an up2date example on how to pass parameters correctly. Any ideas? 2. No output on std::cout It seems that some applications don't output to std::cout/clog/cerr but somehow via printing to console directly (my guess as it is colored output on windows) In those instances, redirection fails. Can anyone think of a way to still monitor the output of the spawned child? Cheers Sebastian

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Boost.Test: floating point comparison using absolute diference
by Georgios Sermaidis 31 Dec '17

31 Dec '17

Hi all, I am trying to find a way to make the boost unit test framework use an absolute difference for floating point comparison instead of the relative difference. I searched the documentation to try to find a suitable decorator but couldn’t find anything. Any help is much appreciated! #define BOOST_TEST_MODULE example #include <boost/test/included/unit_test.hpp> // boost::unit_test::tolerance uses relative difference and hence this test will pass; // is there anything I can use here to indicate absolute difference? BOOST_AUTO_TEST_CASE(my_test, * boost::unit_test::tolerance(0.1) ) { BOOST_TEST(10.1 == 10.3); }

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Boost Unit Test: How to run only the enabled tests of a test suite?
by Maarten Anonymous 29 Dec '17

29 Dec '17

Hey, I'm looking for a way to only run the enabled unit tests of a tests suite. I have the following test suite: #define BOOST_TEST_MODULE decorator_predicate#include <boost/test/included/unit_test.hpp>namespace utf = boost::unit_test; BOOST_AUTO_TEST_SUITE(test_suite_1) BOOST_AUTO_TEST_CASE(bare_test){ BOOST_TEST(true);} BOOST_AUTO_TEST_CASE(enabled_test, * utf::enabled()){ BOOST_TEST(true);} BOOST_AUTO_TEST_CASE(disabled_test, * utf::disabled()){ BOOST_TEST(false);} BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE(test_suite_2) BOOST_AUTO_TEST_CASE(bare_test){ BOOST_TEST(true);} BOOST_AUTO_TEST_CASE(enabled_test, * utf::enabled()){ BOOST_TEST(true);} BOOST_AUTO_TEST_CASE(disabled_test, * utf::disabled()){ BOOST_TEST(false);} BOOST_AUTO_TEST_SUITE_END() Compilation and running: # Compile the test g++ predicate.cpp -o predicate # List all tests./predicate --list_content test_suite_1* bare_test* enabled_test* disabled_test test_suite_2* bare_test* enabled_test* disabled_test # Run the tests that are enabled by default./predicateRunning 4 test cases... *** No errors detected # Here, I would like to only run the enabled tests of test_suite_1.# Instead, all tests are run. Including the disabled../predicate -t test_suite_1Running 3 test cases... predicate.cpp(21): error: in "test_suite_1/disabled_test": check false has failed *** 1 failure is detected in the test module "decorator_predicate" How can I only run the enabled tests of tst_suite1? Only bare_test and enabled_test should be run. Thanks!

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[test] Set fixture for all tests
by Florian Lindner 29 Dec '17

29 Dec '17

Hello, can I set a fixture for the entire test tree, so that it is called before and after each test case? BOOST_FIXTURE_TEST_CASE does that for a test suite, but how can I apply it to all tests e.g. the master test suite? Thanks, Florian

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shared mutex ( read -write lock) for fibers
by Cristian Lorenzetto 23 Dec '17

23 Dec '17

is there a read-write lock for fibers? fibers mutex works also in a "normal" Thread when the scheduler is not installed?

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[Units] Name a unit for output
by Santiago Ospina 20 Dec '17

20 Dec '17

Hello boost-users, I would like to know if there is an equivalent for giving a name and a symbol given a unit in boost::units (maybe scaled from another one). I know the example of naming base units, however, it would imply I'd have to create a system and a conversion for every unit I want to implement. I tried to write it directly from the scaled version, like this: template<> struct scale_minute<60, static_rational<1> > { static const long base = 60; typedef Detail::static_rational<1> exponent; typedef double value_type; static value_type value() { return(60); } static std::string name() { return("minute"); } static std::string symbol() { return("m"); } }; however, it is adding my scaled name plus my base name (say the base name is “s” which stands for seconds, then it would print “m” + "s”). Any idea how to overcome with that?

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Re: [Boost-users] boost.msm and boost.mp11
by Didi JP BGF 19 Dec '17

19 Dec '17

Hi, there is this library that I use ... https://github.com/boost-experimental/sml ... Though I do not what the boost status is... On Tue, Dec 19, 2017 at 4:27 PM, Bogdan via Boost-users < boost-users(a)lists.boost.org> wrote: > Now that boost 1.66 includes mp11, is there a plan to upgrade the > meta-state > machine library (boost.msm) to something less macro dependent? > Thank you, > Bogdan > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > https://lists.boost.org/mailman/listinfo.cgi/boost-users > -- Didi JP BGF 15 Rue Albert Roussel 75017 Paris skype : bdidierjp

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[release] Boost 1.66.0
by Daniel James 19 Dec '17

19 Dec '17

Release 1.66.0 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 N new libraries and numerous enhancements and bug fixes for existing libraries. For details, including download links, see <http://www.boost.org/users/news/version_1.66.0> You can also download directly from: <https://dl.bintray.com/boostorg/release/1.66.0/> To install this release on your system, see <http://www.boost.org/doc/libs/release/more/getting_started/index.html> Thanks to everyone who participated in this release. Thanks, -- The Boost Release Team Vladimir Prus, Marshall Clow, Eric Niebler, Daniel James, Beman Dawes

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boost.msm and boost.mp11
by Bogdan 19 Dec '17

19 Dec '17

Now that boost 1.66 includes mp11, is there a plan to upgrade the meta-state machine library (boost.msm) to something less macro dependent? Thank you, Bogdan

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Adding C++/CLI code to my project makes app crash on startup
by Sergio Basurco 19 Dec '17

19 Dec '17

Hi, I'm using Boost 1.65.1 with Visual Studio 2015 (v140 compiler). Also, I'm using the following libs dynamically: boost_unit_test_framework boost_log boost_filesystem boost_thread boost_system boost_log_setup boost_chrono boost_date_time boost_regex And I want to add C++/CLI code which is built with /clr. This used to work with v110 and Boost 1.57. Now I'm getting this error just when launching the application. *0xc000007b* All binaries are 32bits. I'm also using the following define: BOOST_ALL_DYN_LINK Any idea on why this may happen? -- Saludos / Best regards, *Sergio Basurco* Coherent Synchro

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