不支持boost :: filesystem :: create_symlink

时间:2013-10-19 21:18:37

标签: c++ boost symlink boost-filesystem

我遇到这段代码的问题:

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

namespace bfs = boost::filesystem;

int main(int argc, char **argv)
{
    try
    {
        bfs::create_symlink("C:\\Users\\Administrator\\Desktop\\test.txt",
                        "C:\\Users\\Administrator\\Desktop\\test_symlink.txt");
    }
    catch (std::exception& e)
    {
        std::cout << e.what() << std::endl;
    }

    return 0;
}

调用create_symlink函数会导致抛出异常消息:

boost::filesystem::create_directory_symlink: The request is not supported: "C:\\Users\\Administrator\\Desktop\\test.txt", "C:\\Users\\Administrator\\Desktop\\test_symlink.txt"

我浏览了Boost.Filesystem的operations.cpp文件,发现了这个:

  BOOST_FILESYSTEM_DECL
  void create_symlink(const path& to, const path& from, error_code* ec)
  {
#   if defined(BOOST_WINDOWS_API) && _WIN32_WINNT < 0x0600  // SDK earlier than Vista and Server 2008
    error(true, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()), to, from, ec,
      "boost::filesystem::create_directory_symlink");
#   else

#     if defined(BOOST_WINDOWS_API) && _WIN32_WINNT >= 0x0600
        // see if actually supported by Windows runtime dll
        if (error(!create_symbolic_link_api,
            error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()),
            to, from, ec,
            "boost::filesystem::create_symlink"))
          return;
#     endif

    error(!BOOST_CREATE_SYMBOLIC_LINK(from.c_str(), to.c_str(), 0),
      to, from, ec, "boost::filesystem::create_symlink");
#   endif
  }

这表明在编译Boost时我的_WIN32_WINNT可能不够高。我已经再次编译了Boost.Filesystem,但这次添加了define=_WIN32_WINNT=0x601,我仍然得到一个带有相同消息的异常。我也尝试过定义BOOST_WINDOWS_API which seems to be deprecated,但这会导致编译错误。

我在mingw-builds使用Windows 7,Boost 1.54.0和MinGW-x64-4.8.1-posix-seh-rev4

1 个答案:

答案 0 :(得分:-1)

我不太确定,但我的意思是只在unix系统上支持符号链接。