Unresolved External Symbol(i found where this symbol is)

[o0reyiz0o]

but i cannot solved the problem. here is the code which belongs to a cpp file of a header.

  extern int main ();

static bool zombies = false;


DWORD WINAPI ThreadFunc (LPVOID)
{
	zombies = true;
	main();
	zombies = false;

	RobotWindow::running = false;
	UserMessage(theRobotWindow, mboxOK, "Stop", "End of execution");

	return 0;
}

error;
1>robots_modified.obj : error LNK2001: unresolved external symbol _main
1>d:\users\suuser\documents\visual studio 2010\Projects\hw5.2\Debug\hw5.2.exe : fatal error LNK1120: 1 unresolved externals

when i write // to 2nd line of ThredFunc(front of Main();), i dont get compiler error yet this function is crucial to end my program.

awkward thing is that i use same function in an alternative project and it works completely fine. is it because i run same cpp file in two different project? yet i have two copies of this cpp in project files.

[vlad from moscow]

It is just interesting where did you copy this code from? Where did you see such declaration of main?

[o0reyiz0o]

our instructor gave us that cpp file and its header. also including 3 other cpp-header team. we are expected to just implement some functions to one cpp-header team and write a main.

[vlad from moscow]

According to the C++ Standard

An implementation shall not predefine the main function.