我尝试在std::wstringfull_path上利用带有 Boostxml_parser的boost/property_tree构建一个项目。但是我收到链接错误(见下文(。
#include <filesystem> // C++17
#include <codecvt> // C++11
#include <boost/property_tree/xml_parser.hpp>
#include <boost/property_tree/ptree.hpp>
#include <boost/foreach.hpp>
#include <boost/iostreams/device/file_descriptor.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/filesystem.hpp>
#include <iostream>
void CMainFrame::OnGroup(UINT nID)
{
// Prepare wstring group-name:
std::string group_name = m_id_to_string[nID]; //AG: PATCH
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
std::wstring group_name_w = converter.from_bytes(group_name);
using boost::property_tree::ptree;
// Populate tree structure pt:
ptree pt;
boost::filesystem::wpath full_path = CEngine::Instance().GetGroupDirectory() + group_name_w;
boost::iostreams::file_descriptor_source fs(full_path);
boost::iostreams::stream<boost::iostreams::file_descriptor_source> fsstream(fs);
read_xml(fsstream, pt);
BOOST_FOREACH(ptree::value_type const& v, pt.get_child("Group"))
{
unsigned int DeviceId, GridId, MonitorId;
if (v.first == "Item")
{
DeviceId = v.second.get<unsigned int>("DeviceId");
GridId = v.second.get<unsigned int>("GridId");
MonitorId = v.second.get<unsigned int>("MonitorId");
}
};
}
我收到此错误：
1>------ Build started: Project: BFC, Configuration: Debug x64 ------
1>MainFrm.cpp
1>LINK : fatal error LNK1104: cannot open file 'libboost_iostreams-vc141-mt-gd-x64-1_67.lib'
1>Done building project "BFC.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
知道吗？
一些 boost 库不仅仅是标头库，因此需要构建这些库。请参阅 https://www.boost.org/doc/libs/1_67_0/libs/iostreams/doc/installation.html