July 2008 - Boost-users - lists.preview.boost.org

Re: [Boost-users] run_test parameter not working (Boost Unit Test Framework)
by Marc Oliver Castañeda 18 Jul '08

18 Jul '08

Hi, David is right, the issue can be reproduced with the following simple program: #define BOOST_TEST_MODULE example #include <boost/test/included/unit_test.hpp> BOOST_AUTO_TEST_CASE( testA ) { } BOOST_AUTO_TEST_CASE( testB ) { } BOOST_AUTO_TEST_SUITE( s1 ) BOOST_AUTO_TEST_CASE( test1 ) { } BOOST_AUTO_TEST_CASE( lest2 ) { } BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE( s2 ) BOOST_AUTO_TEST_CASE( test1 ) { } BOOST_AUTO_TEST_CASE( test11 ) { } BOOST_AUTO_TEST_SUITE( in ) BOOST_AUTO_TEST_CASE( test ) { } BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE_END() Compile and link this with the boost unit framework shared library. Run the executable like the following: >example --log_level=test_suite --run_test=testA Output should be.. Running 1 test case... Entering test suite "example" Entering test case "testA" Test case testA doesn't include any assertions Leaving test case "testA" Leaving test suite "example" *** No errors detected However, output is always like the following: Running 7 test cases... Entering test suite "example" Entering test case "testA" Test case testA doesn't include any assertions Leaving test case "testA" Entering test case "testB" Test case testB doesn't include any assertions Leaving test case "testB" Entering test suite "s1" Entering test case "test1" Test case test1 doesn't include any assertions Leaving test case "test1" Entering test case "lest2" Test case lest2 doesn't include any assertions Leaving test case "lest2" Leaving test suite "s1" Entering test suite "s2" Entering test case "test1" Test case test1 doesn't include any assertions Leaving test case "test1" Entering test case "test11" Test case test11 doesn't include any assertions Leaving test case "test11" Entering test suite "in" Entering test case "test" Test case test doesn't include any assertions Leaving test case "test" Leaving test suite "in" Leaving test suite "s2" Leaving test suite "example" *** No errors detected Thanks Marc ----- Original Message ---- From: Gennadiy Rozental <rogeeff(a)gmail.com> To: boost-users(a)lists.boost.org Sent: Friday, July 18, 2008 1:53:00 AM Subject: Re: [Boost-users] run_test parameter not working (Boost Unit Test Framework) David Abrahams <dave <at> boostpro.com> writes: > > > on Thu Jul 17 2008, Marc Oliver Castañeda <floranteatlaura-AT-yahoo.com> wrote: > > > Hi, > > > > I've downloaded the 1.35.0 source and built my own boost libraries in Redhat 5.1 with > > the intention of using the boost unit test framework. However, I noticed that the run_test > > parameter is not working. > > parameter to what? e.g., a function? a command-line tool? > he mean command line parameter that is used to specify which test units to run based on their name _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Boost.Test: time to execute a unit test?
by Fadi Beyrouti 17 Jul '08

17 Jul '08

Hi, The time it takes to execute a unit tests is rarely showing up in the log. It shows up for some test cases but not others. Furthermore, the individual test cases for which the time does appear seem to change from run to run. Here is an example: For the first run of one of our tests we get (an excerpt only): ... Entering test case "QuaternionTest" Leaving test case "QuaternionTest" Entering test case "QuaternionOperatorsTest" Leaving test case "QuaternionOperatorsTest" Entering test case "QuaternionMathTest" Leaving test case "QuaternionMathTest" Entering test case "QuaternionTransformsTest" Leaving test case "QuaternionTransformsTest"; testing time: 16ms Entering test case "QuaternionLerpTest" Leaving test case "QuaternionLerpTest" Entering test case "QuaternionConjugateTest" Leaving test case "QuaternionConjugateTest" ... However, another run will yield a different output. ... Entering test case "QuaternionTest" Leaving test case "QuaternionTest" Entering test case "QuaternionOperatorsTest" Leaving test case "QuaternionOperatorsTest"; testing time: 16ms Entering test case "QuaternionMathTest" Leaving test case "QuaternionMathTest" Entering test case "QuaternionTransformsTest" Leaving test case "QuaternionTransformsTest" Entering test case "QuaternionLerpTest" Leaving test case "QuaternionLerpTest" Entering test case "QuaternionConjugateTest" Leaving test case "QuaternionConjugateTest" ... It seems to me that the testing time is not being outputted if it is less than 15ms. The unit tests are being run on Windows XP professional. Any help would be appreciated. Thanks. -- Fadi,

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run_test parameter not working (Boost Unit Test Framework)
by Marc Oliver Castañeda 17 Jul '08

17 Jul '08

Hi, I've downloaded the 1.35.0 source and built my own boost libraries in Redhat 5.1 with the intention of using the boost unit test framework. However, I noticed that the run_test parameter is not working. Has anyone experienced this and came up with a solution to resolve this issue? The build in windows is working fine. I've verified using gdb that the parameter value is being passed correctly to boost layer. any help will be appreciated. thanks Marc

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Undefined symbols "boost::system::get_posix_category()" and "boost::system::get_system_category()"
by Frank van Meurs 17 Jul '08

17 Jul '08

Hello, I'm trying to use the filesystem libraries provided by Boost (1.35) through "boost/filesystem.hpp". I've installed Boost via macports and checked whether or not the installation is up to date, which it is. Moreover, I can use (some) other Boost libraries just fine, but not the abovementioned one. I'm using the following code to access several libraries: ----SNIP---- #include <boost/regex.hpp> #include <boost/signals.hpp> #include <boost/system/error_code.hpp> #include <boost/filesystem.hpp> ---/SNIP---- Including any of the first three libraries works just fine and results in a successful build. However, adding the fourth results in: ----SNIP---- Undefined symbols: "boost::system::get_posix_category()", referenced from: __static_initialization_and_destruction_0(int, int)in test.o __static_initialization_and_destruction_0(int, int)in test.o "boost::system::get_system_category()", referenced from: __static_initialization_and_destruction_0(int, int)in test.o __static_initialization_and_destruction_0(int, int)in test.o ---/SNIP--- Can anybody point me to a solution for this issue? I really prefer using the existing functionality from Boost over wirting them myself... Thanks in advance. Kind regards, Frank -------------------- Frank van Meurs Dept. of Information and Computer Sciences, Utrecht University Padualaan 14, 3584 CH Utrecht, The Netherlands P: +31 (0)30 - 253 9128 F: +31 (0)30 - 253 4619 W: http://www.cs.uu.nl/staff/fvm.html

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how can I return a 'null' smart pointer?
by Meryl Silverburgh 17 Jul '08

17 Jul '08

Hi, Can you please tell me how can I return a 'null' smart pointer? typedef shared_ptr<MyA> MyAPtr; typedef vector<MyAPtr> MyAVector; For example,I have this code, which return NULL in an error situation: MyAPtr myfunction(MyAVector& v, int size) { if (index < v.size()) { return v[index]; } else { // how can I return NULL here? } } How can I achieve that when I use boost smart pointer? Thank you for any tip.

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Boost.Filesystem path string() confusion
by PETER BARKER 17 Jul '08

17 Jul '08

Hello, I want to use the Boost.Filesystem library in my Win32 application. I've stumbled upon a problem which may very well be my misunderstanding of how to use the library but reading the documentation doesn't clear up my confusion. The user choses a path from a native UI and a bfs::path is constructed with the native name checker. This path needs to be persisted so I call the string() method which according to the documentation "Returns: The contents of m_name, formatted according to the rules of the generic path string grammar." I figured this string would be acceptable to the bfs::path constructor without specifying native because it's in the corrct grammar but I get an exception thrown. Here's a stripped down version of my code: #include <iostream> #include <iterator> #include <boost/filesystem/operations.hpp> namespace bfs = boost::filesystem; int main() { try { // Path constructed from a native UI so constructed with native bfs::path myPath("C:/autoexec.bat",bfs::native); // Persist to grammar conformant string std::string persisted = myPath.string(); // Recreate from persisted string - *THROWS EXCEPTION* bfs::path otherPath(persisted); } catch(const std::exception& e) { std::cout << e.what() << std::endl; } return 0; } The exception string is "boost::filesystem::path: invalid name "C:" in path: "C:/autoexec.bat"" Can someone explain how I should be doing this please? Thanks, Pete

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How to match '}' in regex
by 王文华 17 Jul '08

17 Jul '08

Hello everyone, when i use regex("}"), there is always an error. How can I match it? Regards NextRainbow.

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[boost-users][bind, signal] how to
by Igor R 17 Jul '08

17 Jul '08

Hello, I've got the following design: several functors ("Tasks"), when executed, "delegate" to a shared Processor object that performs some coordination between the tasks. The Processor runs the tasks at some stage, and wants to be notified by the task when it's over. However, I wouldn't like them to "know" each other. I even wouldn't like the Processor making assumptions about exact Task's "connection point" signature/name. For this purpose I want the Task to pass its "connection point" as a generic functor - so that the Processor would execute it to subscribe. However, I haven't managed to bind signal::connect. I'd appreciate any idea about what's wrong in the following schematic code: (In the real code the life-time of the objects is managed by means of shared/weak pointers, which are omitted here for the sake of simplicity!) //task.hpp class Task { public: typedef signal<void (void)> CompletionEvent; void operator ()() { // forward the execution to the processor; (*processor)(bind(&Task::run, this), bind(&CompetionEvent::connect, &done_, _1)); // this bind dosen't compile! } private: void run(); Processor *processor_; signal<void(void)> done_; }; // processor.hpp class Processor { public: void operator ()(boost::function<void(void)> task, boost::function<void(boost::function<void(void)>)> completionNotifier) { // this way I'd like to call signal::connect(bind(&Processor::taskDone, this)); completionNotifier(bind(&Processor::taskDone, this)); } private: void taskDone(); }; Thank you!

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performance weirdness with AVL set
by Lothar Werzinger 17 Jul '08

17 Jul '08

Hi, If I compile the attached test with and without compile optimizations with G++ 4.3.1 the non optimized version (using optimize_size<false>) is more than 10 times faster than the optimized one. I did use oprofile on the application where I use the avl set and the time is spent in the 'find' call. Can you please try to shed some light on this, I am completely stumped. Any help is appreciated! here is how I built the attached test: $ /opt2/linux/ix86/bin/g++-4.3.1 -m64 -O3 -g -I/opt2/linux/x86_64/include/boost-1_35 -DUSE_OPTIMIZATION=0 -o ./avltest-no ./avltest.cpp ./avltest.cpp:21:2: warning: #warning without optimization $ /opt2/linux/ix86/bin/g++-4.3.1 -m64 -O0 -g -I/opt2/linux/x86_64/include/boost-1_35 -DUSE_OPTIMIZATION=0 -o ./avltest-nn ./avltest.cpp ./avltest.cpp:21:2: warning: #warning without optimization $ /opt2/linux/ix86/bin/g++-4.3.1 -m64 -O3 -g -I/opt2/linux/x86_64/include/boost-1_35 -DUSE_OPTIMIZATION=1 -o ./avltest-oo ./avltest.cpp ./avltest.cpp:21:2: warning: #warning with optimization $ /opt2/linux/ix86/bin/g++-4.3.1 -m64 -O0 -g -I/opt2/linux/x86_64/include/boost-1_35 -DUSE_OPTIMIZATION=1 -o ./avltest-on ./avltest.cpp ./avltest.cpp:21:2: warning: #warning with optimization $ time ./avltest-nn sizeof(BalanceNode)=32 sizeof(BalanceSet)=40 creating file /tmp/avltest.img done region.get_address()=0x7fd715fc2000 region.get_size()=1600056 p_set=0x7fd715fc2000 p_values=0x7fd715fc2030 created/inserted 50000 entries region.get_address()=0x7fd715fc2000 region.get_size()=1600056 p_set=0x7fd715fc2000 p_values=0x7fd715fc2030 checked 50000 entries real 0m1.031s user 0m0.956s sys 0m0.008s $ time ./avltest-no sizeof(BalanceNode)=32 sizeof(BalanceSet)=40 creating file /tmp/avltest.img done region.get_address()=0x7f70b6db6000 region.get_size()=1600056 p_set=0x7f70b6db6000 p_values=0x7f70b6db6030 created/inserted 50000 entries region.get_address()=0x7f70b6db6000 region.get_size()=1600056 p_set=0x7f70b6db6000 p_values=0x7f70b6db6030 checked 50000 entries real 0m20.803s user 0m20.233s sys 0m0.028s $ time ./avltest-on sizeof(BalanceNode)=32 sizeof(BalanceSet)=32 creating file /tmp/avltest.img done region.get_address()=0x7f8f9750d000 region.get_size()=1600048 p_set=0x7f8f9750d000 p_values=0x7f8f9750d020 created/inserted 50000 entries region.get_address()=0x7f8f9750d000 region.get_size()=1600048 p_set=0x7f8f9750d000 p_values=0x7f8f9750d020 checked 50000 entries real 0m1.890s user 0m1.844s sys 0m0.012s $ time ./avltest-oo sizeof(BalanceNode)=32 sizeof(BalanceSet)=32 creating file /tmp/avltest.img done region.get_address()=0x7fb9e3b2d000 region.get_size()=1600048 p_set=0x7fb9e3b2d000 p_values=0x7fb9e3b2d020 created/inserted 50000 entries region.get_address()=0x7fb9e3b2d000 region.get_size()=1600048 p_set=0x7fb9e3b2d000 p_values=0x7fb9e3b2d020 checked 50000 entries real 0m0.248s user 0m0.144s sys 0m0.016s Lothar -- Lothar Werzinger Dipl.-Ing. Univ. framework & platform architect Tradescape Inc. - Enabling Efficient Digital Marketplaces 1754 Technology Drive, Suite 128 San Jose, CA 95110 email: lothar(a)tradescape.biz web: http://www.tradescape.biz

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Question on the Boost Preprocessor library
by Wong, Shin Guey 17 Jul '08

17 Jul '08

Hi all, This is my first email to this list; please point me out if I done anything wrong in this mail like the title format or etc... I am a newbie to the Boost library. I am really interesting on the usage of the Boost preprocessor library. I would like to archive 1 of the thing but I am not sure whether it is possible with Boost preprocessor library: Converting the binary number to hexadecimal or decimal value Eg: BIN2HEX(011) -> 0x3 or BIN2DEC(011) -> 3 BIN2HEX(1111) -> 0xf or BIN2DEC(1111) -> 15 I had read the C-Template-Metaprogramming-Concepts-Tools-and-Techniques-from-Boost-and- Beyond-C-in-Depth-Series which tell me how to archive that using template. But what I really want is to done it with the preprocessor without using any template which will not affect the run time but only the compile time. I know that I can use the loop and the arithmetic function from the Boost library but how do I get the binary number characters count, eg. COUNT(011) -> 3 or COUNT(0111) -> 4. So that I can use this count with loop and the arithmetic function to perform the conversion from binary to hexadecimal or decimal. Thanks in advance. Regards, Shin Guey

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