regex_match return true but match_results contain empty entries

[jannich@…]

Hi, Just found a problem with regex when upgrading to boost 1.44.0. Seems like regex_match can return true and match_results contain the correct number of entries, but they are all empty.

I downloaded and compiled 1.44.0 on Ubuntu 8.04 using gcc 4.1.3 using the following cmd: ./bootstrap.sh --with-libraries=serialization,regex --includedir=/usr/include --libdir=/usr/lib; bjam

Attached is a small testcase extracted from our code base, which gives the following result when compiled and executed:

4 >< >< >< terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast> >'

what(): bad lexical cast: source type value could not be interpreted as target

Aborted

Thanks and regards Jannich

[jannich@…]

Forgot to add that this testcase works without problems on Ubuntu 10.04 using gcc 4.4.3 and on RHEL4 using gcc 3.4.6 /Jannich

[anonymous]

Works for me - Ubuntu 8.0 and gcc-4.4.1

Only thing I can think of is that you have multiple Boost versions installed on that machine, and you got a mismatch between headers and libraries.

To test this try something like:

g++ -I path-to-boost-tree main.cpp path-to-boost-tree/libs/regex/src/*.cpp ./a.out

HTH, John.

PS please reopen if you can verify this is genuine issue that I can reproduce here.