error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup

user_833750 0
Viewed 258720

While I am running the simple code as below I have two errors as following:

#include <iostream>
#include <string>
using namespace::std;

template <class Type>
class Stack
{
public:
    Stack (int max):stack(new Type[max]), top(-1), maxsize(max){}
    ~Stack (void) {delete []stack;}
    void Push (Type &val);
    void Pop (void) {if (top>=0) --top;}
    Type& Top (void) {return stack[top];}
    //friend ostream& operator<< (ostream&, Stack&);
private:
    Type *stack;
    int top;
    const int maxSize;
};

template <class Type>
void Stack <Type>:: Push (Type &val)
{
    if (top+1<maxsize)
        stack [++top]=val;
}

Errors:

MSVCRTD.lib(crtexew.obj) : error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup

What Should I do?

visual-studio visual-c++ c++
13 Answers

If you actually want to use _tWinMain() instead of main() make sure your project relevant configuration have

  1. Linker-> System -> SubSystem => Windows(/SUBSYSTEM:WINDOWS)
  2. C/C++ -> Preprocessor -> Preprocessor Definitions => Replace _CONSOLE with _WINDOWS

  3. In the c/cpp file where _tWinMain() is defined, add:

    #include <Windows.h> #include <tchar.h>

user_22524500

The erudite suggestions mentioned above will solve the problem in 99.99% of the cases. It was my luck that they did not. In my case it turned out I was including a header file from a different Windows project. Sure enough, at the very bottom of that file I found the directive:

#pragma comment(linker, "/subsystem:Windows")

Needless to say, removing this line solved my problem.

user_5622420
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