No output- std::cout

[Rico Steele]

Hi all, huge noob here.

Ive only ever used one scripting language prior to my jump, and these are my early days of C++, please excuse my ignorance.

I have been reading the brilliant tuts on your site, and decided to register on the forums to try and find out a way to convert a long type var to a string.

After reading the FAQs I found a solution which worked fine on its own, and highly delighted me.
However: This hurled me into another problem which I cannot find the answer to at my present level of experience with C++.

My problem is that when I tried to use the code I found in my own project it failed to output anything at all.
I have stripped it down to its bare bones to demonstrate my problem, and hope someone can help me understand my error(s).

#include <iostream>
#include <sstream>
#include <string> 
#include <Windows.h>

std::string IntToString ( int number )
{
  std::ostringstream oss;

  // Works just like cout
  oss<< number;

  // Return the underlying string
  return oss.str();
}

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)

{
	
	std::cout<< "Hi World" << "\n";
	system("Pause");
  return 0;
}

std::cout<< "Hi World" << "\n"; shows nothing at all.

I would really appreciate any help.

[whiteflags]

WinMain is the entry point for Windows programs, specifically ones that have GUI. If you want a console (where cout would work) you have to create a window. So yeah, you're doing Windows programming when you really want to do a console project.

[Rico Steele]

Thank you for the reply.

Unfortunately, for some reason, when I try to use the external dll essential to me in a console project, I get compile time errors, (although it works in debug) so for now, I'd like to stick to whats I have working.

I dont actually have a GUI in my project (and maybe I wont need one, Im not certain yet).

Do you think the actuall IntToString() function will be ok in my project ie just the cout failing?

Or do I need to find another way?

[whiteflags]

I don't know if the cout is failing, but that is less important now, since you have no windows to see anything.

The entry point for a console project is main. If you create a console project, your IDE should provide you with a bare-bones file with main in it. I think you just created the wrong type of project by accident and started using WINAPI. Not the end of the world, but you do want a different project.

The IntToString function does look like it is written properly, though testing is always important.

[Rico Steele]

Okay, I'll go off and do some more reading and testing while trying to get my code to compile in a console project.

Thanks once again for you help and time.