I used boost for visual studio 2005 with version 1.48.
I am receiving a linker error while attempting to use boost::gregorian::from_string().
#include <string>
#define BOOST_DATE_TIME_SOURCE
#include <boost/date_time/gregorian/gregorian.hpp>
using namespace boost::gregorian;
using namespace std;
void testDate(){
string s("2000-01-10");
date d2 = from_string(s);
}
int main()
{
testDate();
return 0;
}
and get the linker error:
error LNK2019: unresolved external symbol "public: static class boost::shared_ptr<class std::map<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned short,struct std::less<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > >,class std::allocator<struct std::pair<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const ,unsigned short> > > > __cdecl boost::gregorian::greg_month::get_month_map_ptr(void)" (?get_month_map_ptr#greg_month#gregorian#boost##SA?AV?$shared_ptr#V?$map#V?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std##GU?$less#V?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std###2#V?$allocator#U?$pair#$$CBV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std##G#std###2##std###3#XZ) referenced in function "unsigned short __cdecl boost::date_time::month_str_to_ushort<class boost::gregorian::greg_month>(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??$month_str_to_ushort#Vgreg_month#gregorian#boost###date_time#boost##YAGABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std###Z)
Why?
Boost.DateTime is not a header-only library for you since you are using from_string; you need to compile it from source first and then link against it in your project.
The date time library
boost_date_time-vc140-mt.lib
was not in the lib folder. I have installed it with vcpakcgae manger and it worked.
Related
This is driving me nuts, using MSVC14.1 I am making a library A to be used in another shared library B. It does not matter if the library A is static or shared, I always end up with 3 unresolved external symbols as such :
[build] GroomDeformer.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static class avPoly::PolyMesh __cdecl avPoly::PolyMesh::create(class std::vector<struct glm::vec<3,float,0>,class std::allocator<struct glm::vec<3,float,0> > > const &,class std::vector<unsigned int,class std::allocator<unsigned int> > const &,class std::vector<unsigned __int64,class std::allocator<unsigned __int64> > const &)" (__imp_?create#PolyMesh#avPoly##SA?AV12#AEBV?$vector#U?$vec#$02M$0A##glm##V?$allocator#U?$vec#$02M$0A##glm###std###std##AEBV?$vector#IV?$allocator#I#std###4#AEBV?$vector#_KV?$allocator#_K#std###4##Z) referenced in function "public: void __cdecl avGroomCore::GroomDeformer::ConstructMesh(class std::vector<struct glm::vec<3,float,0>,class std::allocator<struct glm::vec<3,float,0> > > const &,class std::vector<unsigned __int64,class std::allocator<unsigned __int64> > const &,class std::vector<unsigned int,class std::allocator<unsigned int> > const &)" (?ConstructMesh#GroomDeformer#avGroomCore##QEAAXAEBV?$vector#U?$vec#$02M$0A##glm##V?$allocator#U?$vec#$02M$0A##glm###std###std##AEBV?$vector#_KV?$allocator#_K#std###4#AEBV?$vector#IV?$allocator#I#std###4##Z) [C:\Users\tufto\PycharmProjects\avgroom\build\src\core\Core.vcxproj]
[build] GroomDeformer.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class avPoly::FaceLocation __cdecl avPoly::PolyMesh::getClosestLocation(struct glm::vec<3,float,0> const &)" (__imp_?getClosestLocation#PolyMesh#avPoly##QEAA?AVFaceLocation#2#AEBU?$vec#$02M$0A##glm###Z) referenced in function "public: void __cdecl avGroomCore::GroomDeformer::DeformGroom(void)" (?DeformGroom#GroomDeformer#avGroomCore##QEAAXXZ) [C:\Users\tufto\PycharmProjects\avgroom\build\src\core\Core.vcxproj]
[build] GroomDeformer.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: struct glm::vec<3,float,0> __cdecl avPoly::PolyMesh::getAttributeValueFromLocation(class avPoly::FaceLocation const &,class avPoly::Attribute<struct glm::vec<3,float,0> > &)" (__imp_?getAttributeValueFromLocation#PolyMesh#avPoly##QEAA?AU?$vec#$02M$0A##glm##AEBVFaceLocation#2#AEAV?$Attribute#U?$vec#$02M$0A##glm###2##Z) referenced in function "public: void __cdecl avGroomCore::GroomDeformer::DeformGroom(void)" (?DeformGroom#GroomDeformer#avGroomCore##QEAAXXZ) [C:\Users\tufto\PycharmProjects\avgroom\build\src\core\Core.vcxproj]
I do not know what to do at this stage. I looked into the symbols from dumpbin and i do get the signatures, for example :
__imp_?create#PolyMesh#avPoly##SA?AV12#AEBV?$vector#U?$tvec3#M$0A##glm##V?$allocator#U?$tvec3#M$0A##glm###std###std##AEBV?$vector#IV?$allocator#I#std###4#AEBV?$vector#_KV?$allocator#_K#std###4##Z
The only thing i can notice is this has "tvec3" instead of just "vec" in the error signature. I think this refers to a typedef i have to GLM for library A such as :
typedef glm::vec3 Vector3;
typedef std::vector<Vector3> Vector3Array;
Any ideas or guidelines on how i could debug this ? I've tried all I can think off and can't put my finger on it. The worst part is that in the library A project i have another mini executable to test it that links just fine... (all using CMake). Both CMake configs are the same.
Here are the method signatures in the header file for these :
AVPOLYLIB_API
static PolyMesh create(Vector3Array const &positions, UIntArray const &faceVertexCounts, IndexArray const &faceVertexIndices);
AVPOLYLIB_API
FaceLocation getClosestLocation(Vector3 const &point);
AVPOLYLIB_API
Vector3 getAttributeValueFromLocation(FaceLocation const & location, Attribute<Vector3> &attribute);
DLL Export is done as follows :
#ifdef AVPOLYLIB_STATIC
#define AVPOLYLIB_API
#else
#ifdef AVPOLYLIB_EXPORTS
#define AVPOLYLIB_API __declspec(dllexport)
#else
#define AVPOLYLIB_API __declspec(dllimport)
#endif
#endif
The types used in these methods are declared like this (inside the library namespace):
class FaceLocation {
public:
Index triangleId;
Vector3 barycentricCoordinates;
};
typedef std::vector<Vector3> Vector3Array;
typedef std::vector<Index> IndexArray;
typedef std::vector<unsigned int> UIntArray;
Solved it ! It was silly : there was a problem with the glm headers as they where submodules in both libraries but for some reason where not version matching. So i did have a wrong signature in the exported symbols. Using the headers in the same folder solved the issue.
I know this question has been asked a lot of times here. But after trying all the mentioned solutions I am still not able to Compile the Test Boost code.
I have followed the following Steps for installation :-
Unzip Boost into a new directory.
Start a 64-bit MSVC command prompt and change to the directory where Boost was unzipped.
Run: bootstrap
Run: b2 toolset=msvc-10.0 --build-type=complete --libdir=C:\Boost\lib\x64 architecture=x86 address-model=64 install
Add C:\Boost\include\boost-(version) to your include path in Microsoft.Cpp.Win32.user property sheets.
Add C:\Boost\lib\x64 to your libs path in Microsoft.Cpp.Win32.user property sheets.
Additionally, I have added the lib path in additional library directory.
I am trying to compile a standard code to test whether boost is working properly or not.
#include <iostream>
#include <boost/shared_ptr.hpp>
#include <boost/regex.hpp>
using namespace std;
struct Hello
{
Hello(){
cout << "Hello constructor" << endl;
}
~Hello(){
cout << "Hello destructor" << endl;
cin.get();
}
};
int main(int argc, char**argv)
{
//Boost regex, compiled library
boost::regex regex("^(Hello|Bye) Boost$");
boost::cmatch helloMatches;
boost::regex_search("Hello Boost", helloMatches, regex);
cout << "The word between () is: " << helloMatches[1] << endl;
//Boost shared pointer, header only library
boost::shared_ptr<Hello> sharedHello(new Hello);
return 0;
}
The linker error I am getting is:-
1>Sample.obj : error LNK2019: unresolved external symbol "private: class boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > & __thiscall boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::do_assign(char const *,char const *,unsigned int)" (?do_assign#?$basic_regex#DU?$regex_traits#DV?$w32_regex_traits#D#boost###boost###boost##AAEAAV12#PBD0I#Z) referenced in function "public: class boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > & __thiscall boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::assign(char const *,char const *,unsigned int)" (?assign#?$basic_regex#DU?$regex_traits#DV?$w32_regex_traits#D#boost###boost###boost##QAEAAV12#PBD0I#Z)
1>Sample.obj : error LNK2019: unresolved external symbol "public: bool __thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::find(void)" (?find#?$perl_matcher#PBDV?$allocator#U?$sub_match#PBD#boost###std##U?$regex_traits#DV?$w32_regex_traits#D#boost###boost###re_detail#boost##QAE_NXZ) referenced in function "bool __cdecl boost::regex_search<char const *,class std::allocator<struct boost::sub_match<char const *> >,char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >(char const *,char const *,class boost::match_results<char const *,class std::allocator<struct boost::sub_match<char const *> > > &,class boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > const &,enum boost::regex_constants::_match_flags,char const *)" (??$regex_search#PBDV?$allocator#U?$sub_match#PBD#boost###std##DU?$regex_traits#DV?$w32_regex_traits#D#boost###boost###boost##YA_NPBD0AAV?$match_results#PBDV?$allocator#U?$sub_match#PBD#boost###std###0#ABV?$basic_regex#DU?$regex_traits#DV?$w32_regex_traits#D#boost###boost###0#W4_match_flags#regex_constants#0#0#Z)
1>Sample.obj : error LNK2019: unresolved external symbol "private: void __thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::construct_init(class boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > const &,enum boost::regex_constants::_match_flags)" (?construct_init#?$perl_matcher#PBDV?$allocator#U?$sub_match#PBD#boost###std##U?$regex_traits#DV?$w32_regex_traits#D#boost###boost###re_detail#boost##AAEXABV?$basic_regex#DU?$regex_traits#DV?$w32_regex_traits#D#boost###boost###3#W4_match_flags#regex_constants#3##Z) referenced in function "public: __thiscall boost::re_detail::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::perl_matcher<char const *,class std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >(char const *,char const *,class boost::match_results<char const *,class std::allocator<struct boost::sub_match<char const *> > > &,class boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > const &,enum boost::regex_constants::_match_flags,char const *)" (??0?$perl_matcher#PBDV?$allocator#U?$sub_match#PBD#boost###std##U?$regex_traits#DV?$w32_regex_traits#D#boost###boost###re_detail#boost##QAE#PBD0AAV?$match_results#PBDV?$allocator#U?$sub_match#PBD#boost###std###2#ABV?$basic_regex#DU?$regex_traits#DV?$w32_regex_traits#D#boost###boost###2#W4_match_flags#regex_constants#2#0#Z)
1>C:\Users\J.A.R.V.I.S\documents\visual studio 2010\Projects\Boost Sample\Debug\Boost Sample.exe : fatal error LNK1120: 3 unresolved externals
1>
What am I missing here?
I am using VS2010 and windows 64bit.
Thanks
There were 2 issues which were giving the linker error:-
Additional linker dependencies absent at Properties->Linker->Input->AdditionalDependencies
Project was win32. Needed to convert it to x64 using configuration manager.
So here's my problem. I'm writing web browser plugin in Firebreath. Plugin has to connect to different databases (Firebird, MS SQL, My SQL etc.) depending on client request. So I'm creating class to manage connection to right DB. To connect to Firebird I'm trying to use IBPP. I managed to connect to FB using IBPP in simple test project. But now when I'm doing something much more complex I've got this strange linker error LNK2019.
Exact error message is:
Error 2 error LNK2019: unresolved external symbol "class IBPP::Ptr<class IBPP::IDatabase>
__cdecl IBPP::DatabaseFactory(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)
" (?DatabaseFactory#IBPP##YA?AV?$Ptr#VIDatabase#IBPP###1#ABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std##000000#Z)
referenced in function "class IBPP::Ptr<class IBPP::IDatabase>
__cdecl IBPP::DatabaseFactory(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >
const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)"
(?DatabaseFactory#IBPP##YA?AV?$Ptr#VIDatabase#IBPP###1#ABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std##000#Z)
C:\ff-extensions\F4U\build\projects\F4UConv\Connections.obj F4UConv
Code for my connections looks like this:
Header
#ifndef Connections_h
#define Connections_h
#include <cstdarg>
#include <string>
#include "ibpp\ibpp.h"
#include "..\Logger\Logger.h"
using namespace std;
namespace Connections{
class Connection {
public:
void set_logger(Logger::Logger *logger);
virtual bool setup_connection(string machine, string db_path, string login, string passwd)=0;
virtual bool connect()=0;
virtual bool disconnect()=0;
virtual bool setup_statement(string sql_statement, const char *fmt, ...)=0;
template <class Statement>
Statement execute_statement();
protected:
string machine;
string db_path;
string login;
string passwd;
Logger::Logger *logger;
};
class FB_Connection : public Connection {
public:
~FB_Connection();
bool setup_connection(string machine, string db_path, string login, string passwd);
bool connect();
bool disconnect();
bool setup_statement(string sql_statement, const char *fmt, ...);
template <class Statement>
Statement execute_statement();
private:
IBPP::Database db;
};
};
#endif Connections_h
Source
#include "Connections.h"
namespace Connections{
void Connection::set_logger(Logger::Logger *logger){
this->logger = logger;
}
FB_Connection::~FB_Connection(){
if(this->db->Connected()){
this->disconnect();
}
db->Drop();
}
bool FB_Connection::setup_connection(string machine, string db_path, string login, string passwd){
this->machine = machine;
this->db_path = db_path;
this->login = login;
this->passwd = passwd;
try{
this->db = IBPP::DatabaseFactory(this->machine, this->db_path, this->login, this->passwd);
this->db->Create(3);
}catch(IBPP::Exception& e){
if(logger != nullptr){
this->logger->log(Logger::LogMsgValue[Logger::E_LOGMSG_000002]);
this->logger->log(Logger::LEVEL_ERROR, e.ErrorMessage());
}
return false;
}
return true;
}
bool FB_Connection::connect(){
return true;
}
bool FB_Connection::disconnect(){
return true;
}
bool FB_Connection::setup_statement(string sql_statement, const char *fmt, ...){
return true;
}
template <class Statement>
Statement FB_Connection::execute_statement(){
return this;
}
}
I'm googling for two days and still don't know what's the problem. I understand what LNK2019 error means but don't know why it occurs in this case.
The line that generate this error is:
this->db = IBPP::DatabaseFactory(this->machine, this->db_path, this->login, this->passwd);
Can anyone show me what's wrong?
Oh, and I'm using Visual Studio 2012 Express.
You are trying to access the method in the source for which you haven't provided the definition in the connection namespace , i.e
This method :
DatabaseFactory(this->machine, this->db_path, this->login, this->passwd);
Provide a definition for it in the connection namespace.
Write using namespace connections; in the source file.
I'm trying to find a good example of how to use these binary wide character versions of boost's serialization stuff. I pieced together some code to try and get it working, but unfortunately I get bombarded with linker errors when trying to compile it.
Here's my code, in case I'm doing anything obviously wrong:
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <boost/archive/binary_woarchive.hpp>
#include <boost/archive/binary_wiarchive.hpp>
class testClass
{
public:
testClass()
{
}
testClass(const int intInput, const std::wstring stringInput, const float floatInput01, const float floatInput02)
{
ourString = stringInput;
testInt = intInput;
testFloat01 = floatInput01;
testFloat02 = floatInput02;
}
~testClass()
{}
int testInt;
std::wstring ourString;
float testFloat01;
float testFloat02;
int ReturnTestInt()
{
return testInt;
}
float RandomStuff()
{
float alpha01 = 26.9;
alpha01 /= 2;
return alpha01;
}
private:
friend class boost::serialization::access;
template<class Archive>
void serialize(Archive &ar, const unsigned int version)
{
ar &testInt;
ar &ourString;
ar &testFloat01;
ar &testFloat02;
}
};
int main()
{
std::vector<const testClass> objectStorage;
objectStorage.push_back(testClass(1, L"test\0", 9.14f, 6.662f));
objectStorage.push_back(testClass(2, L"temp\0", 0.29f, 3.331f));
objectStorage.push_back(testClass(3, L"then\0", 2.47f, 8.888f));
testClass testReceivedObject;
std::ifstream::pos_type size;
std::wofstream myFile;
boost::archive::binary_woarchive outputArchive(myFile);
myFile.open("Example.dat", std::ios::out | std::ios::binary);
if(myFile.is_open() && myFile.good())
{
std::cout<<"File opening successfully completed."<<std::endl;
unsigned int storageSize = objectStorage.size();
myFile.write(reinterpret_cast<wchar_t*>(&storageSize), (sizeof(unsigned int)));
for(int i = 0; i < objectStorage.size(); i++)
{
outputArchive<<objectStorage[i];
}
/*
myFile.write(reinterpret_cast<char*>(&objectStorage[0]), (sizeof(testClass)));
myFile.write(reinterpret_cast<char*>(&objectStorage[1]), (sizeof(testClass)));
myFile.write(reinterpret_cast<char*>(&objectStorage[2]), (sizeof(testClass)));
*/
}
else
{
std::cout<<"File opening NOT successfully completed."<<std::endl;
}
myFile.close();
std::wifstream myFileInput;
boost::archive::binary_wiarchive inputArchive(myFileInput);
myFileInput.open("Example.dat", std::ios::in | std::ios::binary | std::ios::ate);
if(myFileInput.is_open() && myFileInput.good())
{
std::cout<<"File opening successfully completed. Again."<<std::endl;
std::cout<<"READ:"<<std::endl;
size = myFileInput.tellg();
unsigned int numberOfObjects = 0;
myFileInput.seekg(0, std::ios::beg);
myFileInput.read(reinterpret_cast<wchar_t *>(&numberOfObjects), sizeof(unsigned int));
for(int i = 0; i < numberOfObjects; i++)
{
objectStorage.resize(objectStorage.size()+1);
inputArchive>>objectStorage[i];
//myFileInput.read(reinterpret_cast<wchar_t *>(&objectStorage[i])/*(&testReceivedObject)*/, sizeof(testClass));
}
std::cout<<std::endl<<"END."<<std::endl;
}
else
{
std::cout<<"Something has gone disasterously wrong."<<std::endl;
}
myFileInput.close();
for(int i = 0; i < objectStorage.size(); i++)
{
std::wcout<<objectStorage[i].ourString<<std::endl;
}
return 0;
}
Here are the errors:
1>main.obj : error LNK2019: unresolved external symbol "protected: __thiscall boost::archive::basic_binary_oprimitive<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::~basic_binary_oprimitive<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >(void)" (??1?$basic_binary_oprimitive#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAE#XZ) referenced in function "public: __thiscall boost::archive::binary_oarchive_impl<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::~binary_oarchive_impl<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >(void)" (??1?$binary_oarchive_impl#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##QAE#XZ)
1>main.obj : error LNK2019: unresolved external symbol "protected: __thiscall boost::archive::basic_binary_iprimitive<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::~basic_binary_iprimitive<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >(void)" (??1?$basic_binary_iprimitive#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAE#XZ) referenced in function "public: __thiscall boost::archive::binary_iarchive_impl<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::~binary_iarchive_impl<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >(void)" (??1?$binary_iarchive_impl#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##QAE#XZ)
1>main.obj : error LNK2019: unresolved external symbol "protected: __thiscall boost::archive::basic_binary_oprimitive<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::basic_binary_oprimitive<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >(class std::basic_streambuf<wchar_t,struct std::char_traits<wchar_t> > &,bool)" (??0?$basic_binary_oprimitive#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAE#AAV?$basic_streambuf#_WU?$char_traits#_W#std###std##_N#Z) referenced in function "protected: __thiscall boost::archive::binary_oarchive_impl<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::binary_oarchive_impl<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >(class std::basic_ostream<wchar_t,struct std::char_traits<wchar_t> > &,unsigned int)" (??0?$binary_oarchive_impl#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAE#AAV?$basic_ostream#_WU?$char_traits#_W#std###std##I#Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: __thiscall boost::archive::basic_binary_iprimitive<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::basic_binary_iprimitive<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >(class std::basic_streambuf<wchar_t,struct std::char_traits<wchar_t> > &,bool)" (??0?$basic_binary_iprimitive#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAE#AAV?$basic_streambuf#_WU?$char_traits#_W#std###std##_N#Z) referenced in function "protected: __thiscall boost::archive::binary_iarchive_impl<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::binary_iarchive_impl<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >(class std::basic_istream<wchar_t,struct std::char_traits<wchar_t> > &,unsigned int)" (??0?$binary_iarchive_impl#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAE#AAV?$basic_istream#_WU?$char_traits#_W#std###std##I#Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_oprimitive<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::init(void)" (?init#?$basic_binary_oprimitive#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXXZ) referenced in function "protected: void __thiscall boost::archive::binary_oarchive_impl<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::init(unsigned int)" (?init#?$binary_oarchive_impl#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXI#Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_oarchive<class boost::archive::binary_woarchive>::init(void)" (?init#?$basic_binary_oarchive#Vbinary_woarchive#archive#boost###archive#boost##IAEXXZ) referenced in function "protected: void __thiscall boost::archive::binary_oarchive_impl<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::init(unsigned int)" (?init#?$binary_oarchive_impl#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXI#Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_iprimitive<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::init(void)" (?init#?$basic_binary_iprimitive#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXXZ) referenced in function "protected: void __thiscall boost::archive::binary_iarchive_impl<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::init(unsigned int)" (?init#?$binary_iarchive_impl#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXI#Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_iarchive<class boost::archive::binary_wiarchive>::init(void)" (?init#?$basic_binary_iarchive#Vbinary_wiarchive#archive#boost###archive#boost##IAEXXZ) referenced in function "protected: void __thiscall boost::archive::binary_iarchive_impl<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::init(unsigned int)" (?init#?$binary_iarchive_impl#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXI#Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_iarchive<class boost::archive::binary_wiarchive>::load_override(struct boost::archive::class_name_type &,int)" (?load_override#?$basic_binary_iarchive#Vbinary_wiarchive#archive#boost###archive#boost##IAEXAAUclass_name_type#23#H#Z) referenced in function "protected: void __thiscall boost::archive::binary_iarchive_impl<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::load_override<struct boost::archive::class_name_type>(struct boost::archive::class_name_type &,int)" (??$load_override#Uclass_name_type#archive#boost###?$binary_iarchive_impl#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXAAUclass_name_type#12#H#Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_oprimitive<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::save(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?save#?$basic_binary_oprimitive#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std###Z) referenced in function "public: static void __cdecl boost::archive::save_access::save_primitive<class boost::archive::binary_woarchive,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > >(class boost::archive::binary_woarchive &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??$save_primitive#Vbinary_woarchive#archive#boost##V?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std###save_access#archive#boost##SAXAAVbinary_woarchive#12#ABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std###Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_oprimitive<class boost::archive::binary_woarchive,wchar_t,struct std::char_traits<wchar_t> >::save(class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > const &)" (?save#?$basic_binary_oprimitive#Vbinary_woarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXABV?$basic_string#_WU?$char_traits#_W#std##V?$allocator#_W#2##std###Z) referenced in function "public: static void __cdecl boost::archive::save_access::save_primitive<class boost::archive::binary_woarchive,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > >(class boost::archive::binary_woarchive &,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > const &)" (??$save_primitive#Vbinary_woarchive#archive#boost##V?$basic_string#_WU?$char_traits#_W#std##V?$allocator#_W#2##std###save_access#archive#boost##SAXAAVbinary_woarchive#12#ABV?$basic_string#_WU?$char_traits#_W#std##V?$allocator#_W#2##std###Z)
1>main.obj : error LNK2019: unresolved external symbol "protected: void __thiscall boost::archive::basic_binary_iprimitive<class boost::archive::binary_wiarchive,wchar_t,struct std::char_traits<wchar_t> >::load(class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > &)" (?load#?$basic_binary_iprimitive#Vbinary_wiarchive#archive#boost##_WU?$char_traits#_W#std###archive#boost##IAEXAAV?$basic_string#_WU?$char_traits#_W#std##V?$allocator#_W#2##std###Z) referenced in function "public: static void __cdecl boost::archive::load_access::load_primitive<class boost::archive::binary_wiarchive,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > >(class boost::archive::binary_wiarchive &,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > &)" (??$load_primitive#Vbinary_wiarchive#archive#boost##V?$basic_string#_WU?$char_traits#_W#std##V?$allocator#_W#2##std###load_access#archive#boost##SAXAAVbinary_wiarchive#12#AAV?$basic_string#_WU?$char_traits#_W#std##V?$allocator#_W#2##std###Z)
Advice on understanding what is wrong and how to resolve it would be greatly appreciated.
It turns out that boost/archive/binary_woarchive.hpp and boost/archive/binary_wiarchive.hpp are redundant.
Instead boost/archive/binary_oarchive.hpp and boost/archive/binary_iarchive.hpp will work just fine even for class instances that contain wide character variables!
I hope this information helps someone.
In order to test leveldb, I tried to reproduce the leveldb's example on VS 2008.
#include <assert.h>
#include "leveldb/db.h"
int main()
{
leveldb::DB* db;
leveldb::Options options;
options.create_if_missing = true;
leveldb::Status status = leveldb::DB::Open(options,"D:\dev\tools\tmp",&db);
}
I have included leveldb/include directory and linked libleveldb.lib.
Result :
error LNK2019: unresolved external symbol "public: static class
leveldb::Status __cdecl leveldb::DB::Open(struct leveldb::Options
const &,class std::basic_string,class std::allocator > const &,class
leveldb::DB * *)"
(?Open#DB#leveldb##SA?AVStatus#2#ABUOptions#2#ABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std##PAPAV12##Z)
referenced in function _main
error LNK2019: unresolved external symbol public: __thiscall leveldb::Options::Options(void)"
(??0Options#leveldb##QAE#XZ) referenced in function _main
Does anyone know how to fix this ?
Solution :
Use levelDb-portable from zhangyafreikimi