使用boost正則表達式庫編譯程序時遇到的問題

Question

我試圖編譯一個boost程序，它在我的linux機器上使用boost正則表達式庫。它具有所有必需的頭文件和庫。該程序拒絕編譯投擲大量模板輸出。 我正在使用以下命令來編譯程序。

請諮詢如何解決以下問題。

克++ regex.cc -I/USR /本地/包括/升壓/ -L的/ usr /本地/ lib中-lboost_regex -o正則表達式

這裏是編譯器的輸出。

ravit@ravit-laptop:~$ g++ regex.cc -I/usr/local/include/boost/ -L/usr/local/lib -lboost_regex -o regex 
In file included from /usr/local/include/boost/regex/v4/perl_matcher.hpp:582, 
       from /usr/local/include/boost/regex/v4/regex.hpp:88, 
       from /usr/local/include/boost/regex.hpp:31, 
       from regex.cc:19: 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp: In member function ‘bool boost::re_detail::perl_matcher<BidiIterator, Allocator, traits>::match_assert_backref() [with BidiIterator = __gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]’: 
/usr/local/include/boost/regex/v4/perl_matcher_non_recursive.hpp:180: instantiated from ‘bool boost::re_detail::perl_matcher<BidiIterator, Allocator, traits>::match_all_states() [with BidiIterator = __gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]’ 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp:323: instantiated from ‘bool boost::re_detail::perl_matcher<BidiIterator, Allocator, traits>::match_prefix() [with BidiIterator = __gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]’ 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp:207: instantiated from ‘bool boost::re_detail::perl_matcher<BidiIterator, Allocator, traits>::match_imp() [with BidiIterator = __gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]’ 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp:180: instantiated from ‘bool boost::re_detail::perl_matcher<BidiIterator, Allocator, traits>::match() [with BidiIterator = __gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]’ 
/usr/local/include/boost/regex/v4/regex_match.hpp:50: instantiated from ‘bool boost::regex_match(BidiIterator, BidiIterator, boost::match_results<Iterator, Allocator>&, const boost::basic_regex<charT, traits>&, boost::regex_constants::match_flag_type) [with BidiIterator = __gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, charT = char, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]’ 
/usr/local/include/boost/regex/v4/regex_match.hpp:82: instantiated from ‘bool boost::regex_match(const std::basic_string<charT, ST, SA>&, boost::match_results<typename std::basic_string<charT, ST, SA>::const_iterator, Allocator>&, const boost::basic_regex<charT, traits>&, boost::regex_constants::match_flag_type) [with ST = std::char_traits<char>, SA = std::allocator<char>, Allocator = std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, charT = char, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]’ 
regex.cc:30: instantiated from here 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp:768: error: request for member ‘back’ in ‘((boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >*)this)->boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::recursion_stack’, which is of non-class type ‘boost::re_detail::recursion_info<boost::match_results<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > [50]’ 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp:768: error: request for member ‘empty’ in ‘((boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >*)this)->boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::recursion_stack’, which is of non-class type ‘boost::re_detail::recursion_info<boost::match_results<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > [50]’ 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp:778: error: request for member ‘back’ in ‘((boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >*)this)->boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::recursion_stack’, which is of non-class type ‘boost::re_detail::recursion_info<boost::match_results<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > [50]’ 
/usr/local/include/boost/regex/v4/perl_matcher_common.hpp:778: error: request for member ‘empty’ in ‘((boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >*)this)->boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::recursion_stack’, which is of non-class type ‘boost::re_detail::recursion_info<boost::match_results<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > [50]’ 

這裏是從相同的正則表達式的升壓文檔

#include <boost/regex.hpp> 
#include <iostream> 

void 
print_captures(const std::string& regx, 
       const std::string& text) 
{ 
    boost::regex e(regx); 
    boost::smatch what; 
    std::cout << "Expression: \"" << regx << "\"\n"; 
    std::cout << "Text:  \"" << text << "\"\n"; 
    if(boost::regex_match(text, what, e, boost::match_extra)) 
    { 
     unsigned i, j; 
     std::cout << "** Match found **\n Sub-Expressions:\n"; 
     for(i = 0; i < what.size(); ++i) 
     std::cout << "  $" << i << " = \"" << what[i] << "\"\n"; 
     std::cout << " Captures:\n"; 
     for(i = 0; i < what.size(); ++i) 
     { 
     std::cout << "  $" << i << " = {"; 
     for(j = 0; j < what.captures(i).size(); ++j) 
     { 
      if(j) 
       std::cout << ", "; 
      else 
       std::cout << " "; 
      std::cout << "\"" << what.captures(i)[j] << "\""; 
     } 
     std::cout << " }\n"; 
     } 
    } 
    else 
     std::cout << "** No Match found **\n"; 
} 

int main(int , char* []) 
{ 
    print_captures("(([[:lower:]]+)|([[:upper:]]+))+", "aBBcccDDDDDeeeeeeee"); 
    print_captures("a(b+|((c)*))+d", "abd"); 
    print_captures("(.*)bar|(.*)bah", "abcbar"); 
    print_captures("(.*)bar|(.*)bah", "abcbah"); 
    print_captures("^(?:(\\w+)|(?>\\W+))*$", "now is the time for all good men to come to the aid of the party"); 
    print_captures("^(?>(\\w+)\\W*)*$", "now is the time for all good men to come to the aid of the party"); 
    print_captures("^(\\w+)\\W+(?>(\\w+)\\W+)*(\\w+)$", "now is the time for all good men to come to the aid of the party"); 
    print_captures("^(\\w+)\\W+(?>(\\w+)\\W+(?:(\\w+)\\W+){0,2})*(\\w+)$", "now is the time for all good men to come to the aid of the party"); 
    return 0; 
} 

Answer 1

轉到regex.cc文件30行（regex.cc:30：從這裏實例化）所採取的一段代碼和STARE在它（交叉檢查工作的文檔中的例子），直到它變得清楚你做錯了什麼。看起來你在不支持這些操作的東西上調用back（）和empty（）。在這些錯誤消息的末尾給出[50] [也稱爲非類類型]，您可能已經忘記索引一個數組。 （即，你寫了array.empty（）而不是array [i] .empty（））。

Answer 2

錯誤：請求成員'.....'在'......'通常是由使用造成的。什麼時候應該使用- >或聲明添加（）時，你不應該，例如：

TheClass myTheClass(); 

，而不是

TheClass myTheClass;