带有Boost的未解析的外部符号

时间:2016-05-17 17:05:01

标签: c++ boost static-linking

我正在尝试从Getting Started Guide编译Boost.Regex程序,但即使我链接了所需的库,我也得到了一些未解析的外部符号:

1>------ Build started: Project: Project1, Configuration: Debug Win32 ------
1>  main.cpp
1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall boost::re_detail_106100::raw_storage::resize(unsigned int)" (?resize@raw_storage@re_detail_106100@boost@@QAEXI@Z) referenced in function "public: void * __thiscall boost::re_detail_106100::raw_storage::extend(unsigned int)" (?extend@raw_storage@re_detail_106100@boost@@QAEPAXI@Z)
1>main.obj : error LNK2019: unresolved external symbol "public: void * __thiscall boost::re_detail_106100::raw_storage::insert(unsigned int,unsigned int)" (?insert@raw_storage@re_detail_106100@boost@@QAEPAXII@Z) referenced in function "public: struct boost::re_detail_106100::re_syntax_base * __thiscall boost::re_detail_106100::basic_regex_creator<char,struct boost::regex_traits<char,class boost::cpp_regex_traits<char> > >::insert_state(int,enum boost::re_detail_106100::syntax_element_type,unsigned int)" (?insert_state@?$basic_regex_creator@DU?$regex_traits@DV?$cpp_regex_traits@D@boost@@@boost@@@re_detail_106100@boost@@QAEPAUre_syntax_base@23@HW4syntax_element_type@23@I@Z)
1>C:\Users\unknown\Documents\Visual Studio 2015\Projects\Project1\Debug\Project1.exe : fatal error LNK1120: 2 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

以下是代码(取自here):

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

int main()
{
    std::string line;
    boost::regex pat("^Subject: (Re: |Aw: )*(.*)");

    while (std::cin)
    {
        std::getline(std::cin, line);
        boost::smatch matches;
        if (boost::regex_match(line, matches, pat))
            std::cout << matches[2] << std::endl;
    }
}

一些信息:

  • 这发生在Debug and Release
  • 我无法在x64下构建项目,因为库是x86
  • 我使用bootstrap,然后b2
  • 构建了静态库
  • 我包含了libboost_regex-vc140-mt-1_61.liblibboost_regex-vc140-mt-gd-1_61.lib用于调试)
  • 不使用Unicode字符集(在Visual Studio项目属性中)
  • 我使用的是Visual Studio 2015
  • 我正在使用Boost 1.61
  • 每个需要库的 Boost代码
  • 都会发生这种情况
  • 对于仅有标题的Boost库
  • ,这显然不会发生

有什么想法吗?

1 个答案:

答案 0 :(得分:1)

此链接http://lists.boost.org/boost-users/2010/04/57957.php表明构建boost库和项目之间的编译器标志存在一些差异