I'm doing a homework assignment where I have to calculate monthly interest from a starting balance. I've pulled several sections of the code from various parts of the book. So my problem may be that I'm not combining them correctly.
I'm getting the following error: Error1error LNK2019: unresolved external symbol "public: __thiscall SavingsAccount::SavingsAccount(void)" (??0SavingsAccount@@QAE@XZ) referenced in function _main
The ios flags are new to me and that may be part of the problem. As soon as I can get a working program, I'm going to make the starting balance and interest rate user inputs. But I get seem to get past this error.
#include <iostream> #include "namespaces.h" namespace mycode { void foo() { std::cout << "foo() called in the mycode namespace" << std::endl; } }
When I try to run this code i keep getting these errors;
Error1error LNK2019: unresolved external symbol "void __cdecl mycode::foo(void)" (?foo@mycode@@YAXXZ) referenced in function _mainC:UsersHomeDesktopgameDevWin32Project1Win32Project1Source1.objWin32Project1
My program will not run because of error LNK2028 "unresolved token" and error LNK2019 "unresolved external signal" and I do not know why. My teacher says that I need to make the constructor and display functions display class variables in different formats, but I do not know what to do with that. Here are my 3 files:
Header take 2.h:
#pragma once #include <iostream> #include <string> using namespace std; class Heading { private: string company, report;
[Code] ....
Here are the errors: Error1error LNK2028: unresolved token (0A0003C9) "public: __thiscall Heading::Heading(void)" (??0Heading@@$$FQAE@XZ) referenced in function "int __cdecl main(void)" (?main@@$$HYAHXZ)c:UsersOwnerdocumentsvisual studio 2012ProjectsClassLibrary2ClassLibrary2Source1.objClassLibrary2
My code is rather short, but when I compile it, I get 1 error about an unresolved external symbol, it probably has something to do with the file processing. . .
Just a basic keylogger using SDL
Keylogger.h #ifndef KEYLOGGER_H #define KEYLOGGER_H #include <fstream> #include <SDL.h> using namespace std; class Keylogger{
[Code] .....
Errors
Error1error LNK2019: unresolved external symbol __imp___CrtDbgReportW referenced in function "public: char const & __thiscall std::_String_const_iterator<class std::_String_val<struct std::_Simple_types<char> > >::operator*(void)const " (??D?$_String_const_iterator@V?$_String_val@U?$_Simple_types@D@std@@@std@@@std@@QBEABDXZ)C:Usersaviedocumentsvisual studio 2013ProjectsPracticePracticeKeylogger.objPractice
I am currently working on an Account login system and when I run the program I receive this error message:
error LNK2019: unresolved external symbol
If you want to see the full code of the source file just ask
const int NUM_OF_ACCOUNTS = 1; Account *account = new Account[NUM_OF_ACCOUNTS]; int AccountSearch(int number, string password); foundAccount = AccountSearch(aNumSearch, passSearch); int AccountSearch(int n, string p); { int x = 0;
So even though I have so many issues with linking libraries, I apparently became the go-to person for a fellow college friend of mine for a sql library. He's using the mysql connector/c++ and his team has had quite a few issues getting it set up. I've solved two out of three issues:
1st issue I solved was that they didn't know how to build boost, I just linked it and they were good to go.
2nd issue I solved was that they were missing libmysql.lib, I just installed the mysql server onto their computer and linked that up. 3rd issue is where I am now stumped at, as they get a compile error: LNK2001 unresolved external symbol: _get_driver_instance().
When I try to compile a program from a C book I am following I am getting these errors, I have looked for ways to resolve it but I wasn't able to.
Errors:
Error3error LNK2001: unresolved external symbol _druk_instructiesC:UsersIvoDocumentsVisual Studio 2012ProjectsConsoleApplication2ConsoleApplication2Handspel.objConsoleApplication2 Error4error LNK2001: unresolved external symbol _speler_keuzeC:UsersIvoDocumentsVisual Studio 2012ProjectsConsoleApplication2ConsoleApplication2Handspel.objConsoleApplication2 Error5error LNK2001: unresolved external symbol _machine_keuzeC:UsersIvoDocumentsVisual Studio
The project builds on Win32 platform, but not on x64.
Full error message: dllentry.obj : error LNK2001: unresolved external symbol "class CFactoryTemplate * g_Templates" (?g_Templates@@3PAVCFactoryTemplate@@A)
The dllentry.cpp (a DirectShow base class) compiles on both platforms. It contains the external declarations:
extern CFactoryTemplate g_Templates[]; extern int g_cTemplates; g_Templates[] is then used in two functions: __control_entrypoint(DllExport) STDAPI DllGetClassObject(__in REFCLSID rClsID, __in REFIID riid, __deref_out void **pv)
[Code]...
myClass.cpp contains the definitions for the two externals in dllentry.cpp, at top level, just after the includes:
CFactoryTemplate* g_Templates=0; int g_cTemplates=0;
myClass.cpp also compiles by itself, but the project does not build. I checked all the libraries in the project settings and all seems to be OK, the 64 bit versions are used.
What should I do to make the project build for x64 platform?
I am working on building a set of templated data structures for my own learning and have run in to an error when instantiating my templated linked list. I receive the following error:
error LNK2019: unresolved external symbol "public: __thiscall LinkedList<int>::~LinkedList<int>(void)" (??1?$LinkedList@H@@QAE@XZ) referenced in function _main
--LinkedList.h-- #ifndef LINKEDLIST_H #define LINKEDLIST_H template<class T> class LinkedList {
#include <stdio.h> #include <tchar.h> #include <iostream> #include <string> #include <fstream>// enable writing to and reading from files #include <cstdlib> #include <time.h> using namespace std; class Person {
[Code] .....
Error list:
Code:
Error 1 error LNK2019: unresolved external symbol "void __cdecl saveperson(void)" (?saveperson@@YAXXZ) referenced in function _main H:Cry_DevProgrammingC++Using_class_ in_ c++Using_class_ in_ c++Using_class_ in_ c++.obj Error 2 error LNK2019: unresolved external symbol "void __cdecl displayperson(void)" (?displayperson@@YAXXZ) referenced in function _main H:Cry_DevProgrammingC++Using_class_ in_ c++Using_class_ in_ c++Using_class_ in_ c++.obj Error 3 error LNK2019: unresolved external symbol "void __cdecl editperson(void)" (?editperson@@YAXXZ) referenced in function _main H:Cry_DevProgrammingC++Using_class_ in_ c++Using_class_ in_ c++Using_class_ in_ c++.obj Error 4 error LNK1120: 3 unresolved externals H:Cry_DevProgrammingC++Using_class_ in_ c++DebugUsing_class_ in_ c++.exe 1
I'm trying to create a public and static field in a class called ResourceManager. But when trying to access the field even from inside the class it wont work. I'm getting this error message:
Error 1 error LNK2001: unresolved external symbol "public: static int ResourceManager::num" (?num@ResourceManager@@2HA)
Here's my code: ResourceManager.h
Code:
class ResourceManager { public: static int num; static void loadContent();
For my data-structures class, I am attempting to create a binary search tree template to be used to create an AVL tree. I've written a Generic_Tree template for the BST to inherit from, and before I jump into implementing the AVL tree I'm testing the BST member functions. Everything was compiling fine until I added the BST insert() function. Now, I'm getting the following error message from my linker:
undefined reference to 'BST<void>::insert(int, void*)'
I'm trying to implement this queue class, and I don't know why it won't compile. I wrote a main function in the main.cpp file and even commented out the calls to functions add and removed and still gave me the fatal error.
So I tried to make a tile map function to display my map as tiles. I keep getting unresolved external symbol errors, I've included the header file, and used every declaration in it, but to be completely honest this is mostly just a try to see if I could do it, and so far I'm failing. So if you can see why I'm getting the error.
I have tried several variants on this code to no avail. Outer is in a header, along with the extern template statements, and the specializations after main are in their own cpp file. Main is in a different cpp file.
What do have to do to make this work? I cannot bring the definitions of f() into the header, and they will be different for different template parameters. Ideally, I want Test to remain a private member of Outer, though this can change if it's the only option.
The basics of the program is that:It will ask the user whether they want to: Pop, Push , Peek or Exit the program.
When it comes to the Exit case: how do so( tried exit(1) & exit(0) using the internet hasn't brought me much luck either. I am getting these two errors also:
"Error LNK2019 : Unresolved external symbol "int_cdcel peek(void)" (?peek@@YAHXZ)"
Each applying to the functions below.
"Error LNK1120: 3 Unresolved Externals"
I'm not sure their is much more I can say about the problem.
Code:
#include "stdafx.h"#include <stdio.h> /* Libary Collection.*/ #define MAX 10 /* Define: The max size of what we are working with.*/ int push (void); int pop(void); int peek (void);
[code]...
I was also told that I could us if statements instead but, that still will remove the first errors
I understood that GetValue<D3DXVECTOR3>::Initialize was not defined.
How can I reuse the GetValue::Initialize method in every derived classes from GetValue, such as GetD3DXVECTOR3, GetD3DXMATRIX, GetOpenGLVector3 etc ...
I have to find at least 5 errors in the following class template. I have found three and it now compiles, here is the template
#include <map> #include <utility> template <class T> class foo{ public : foo(T bar1, T bar2){ _bar1.push_back(bar1); _bar2.insert( std::pair<T,T>(bar1,bar2) );
[Code] ....
The errors I believe I have found are as follows: the vector library has not been added, the map requires two type arguments rather than one and the object which is created in main doesn't pass any values to the constructor. I fixed all of these errors and the code now compiles without errors, however the problem asks for five.
what my compiling errors mean, and what I should do to fix them: The following is my header & Implementation files. Note, the purpose of this class is a built in Array.
I have to find at least 5 errors in the following class template. I have found three and it now compiles, here is the template
#include <map> #include <utility> template <class T> class foo{ public :
[Code]....
The errors I believe I have found are as follows: the vector library has not been added, the map requires two type arguments rather than one and the object which is created in main doesn't pass any values to the constructor. I fixed all of these errors and the code now compiles without errors, however the problem asks for five.
My load function isnt working. I've tested it and returned it as an int and it worked but when i tried to compile when i changed it to a template i started getting the errors and I'm not sure how to fix it:
all_sort.cpp:41:15: error: no matching function for call to 'load' int *value = load("./integers.txt", size); ^~~~ ./bubble_sort.h:44:4: note: candidate template ignored: couldn't infer template argument 'T' T *load(const char* x, int &size) {
[Code] ....
I'm trying to use my load function to load integers from a file into and array and then return it back.
#include "bubble_sort.h" #include <iostream> #include <cstdlib> #include <string> using namespace std; int main(){ int n, pick = 1, size = 0;
