[Boost-users] boost_regex compiler error

5 Dec 2016

      ...
::perl_matcher(__gnu_cxx::__normal_iterator >, __gnu_cxx::__normal_iterator >,
boost::match_results<__gnu_cxx::__normal_iterator >,
std::allocator > > > >&, boost::basic_regex > const&,
boost::regex_constants::_match_flags, __gnu_cxx::__normal_iterator >)':
Hi - I am stuck on a linker error with the boost_regex library.  My
platform is ubuntu 16.04 LTS, arm64, NVIDIA TX1.  I downloaded and built
boost 1.62.0 with the following parameters:

./bootstrap.sh --prefix=/usr/local
sudo ./b2 -d2 architecture=arm address-model=64 install

I compiled a simple program using this command line:

g++ main.cpp -I/usr/local/include -L/usr/local/lib -lboost_regex

Here is the program:

#include 
#include <iostream>

using namespace std;

int main(int argc, char *argv[]) {
    static const boost::regex rxInt("[0-9]+");
    string word = "foobar";

    if(boost::regex_match(word, rxInt)) {
        cout << "Integer" << endl;
    } else {
        cout << "Not integer" << endl;
    }

    return 0;
}

Here are the linker errors:

/tmp/ccuOD7Zj.o: In function `bool
boost::regex_match<__gnu_cxx::__normal_iterator >,
std::allocator > > >, char, boost::regex_traits >(__gnu_cxx::__normal_iterator >, __gnu_cxx::__normal_iterator >,
boost::match_results<__gnu_cxx::__normal_iterator >,
std::allocator > > > >&, boost::basic_regex > const&,
boost::regex_constants::_match_flags)':
main.cpp:(.text._ZN5boost11regex_matchIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISB_EEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEbT_SJ_RNS_13match_resultsISJ_T0_EERKNS_11basic_regexIT1_T2_EENS_15regex_constants12_match_flagsE[_ZN5boost11regex_matchIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISB_EEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEbT_SJ_RNS_13match_resultsISJ_T0_EERKNS_11basic_regexIT1_T2_EENS_15regex_constants12_match_flagsE]+0x58):
undefined reference to
`boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator >,
std::allocator > > >, boost::regex_traits >::match()'
/tmp/ccuOD7Zj.o: In function
`boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator >,
std::allocator > > >, boost::regex_traits
main.cpp:(.text._ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEC2ESC_SC_RNS_13match_resultsISC_SF_EERKNS_11basic_regexIcSJ_EENS_15regex_constants12_match_flagsESC_[_ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEC5ESC_SC_RNS_13match_resultsISC_SF_EERKNS_11basic_regexIcSJ_EENS_15regex_constants12_match_flagsESC_]+0xf8):
undefined reference to
`boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator >,
std::allocator > > >, boost::regex_traits >::construct_init(boost::basic_regex > const&,
boost::regex_constants::_match_flags)'
collect2: error: ld returned 1 exit status

Any hints would be appreciated.  Should I try to use an earlier version of
boost?

thank you!

[Boost-users] boost_regex compiler error

Chris Padwick