C++ and Visual Studio 2005

HelloWorld · #1 (**permalink**) 07-18-2007, 11:07 PM

Hey, I just played around with C++
I used VS 2005 to program C++, however, there's one thing that I'm kind of confused. This is what Deitel book said as part of the code:

PHP Code:

   1  // Fig. 2.1: fig02_01.cpp
 2  // Text-printing program.
 3  #include <iostream> // allows program to output data to the screen
 4
 5  // function main begins program execution
 6  int main()
 7  {
 8     std::cout << "Welcome to C++!\n"; // display message
 9
10     return 0; // indicate that program ended successfully
11
12  } // end function main

It gave me an error, until I changed it to be:

PHP Code:

  #include "stdafx.h"
#include <iostream>
int main() {
std::cout << "C++ Testing";
return 0;
}

and it works.
#include "stdafx.h" is the problem, why is that happened? I want to know what's behind it..
Also, how do you make the Console not automatically closed once the program is done running? It's difficult for me to tell whether it gives the output that I wanted or not..

rpgfan3233 · #2 (**permalink**) 07-18-2007, 11:30 PM

I knew that Visual C++ liked the stdafx.h header, but I didn't realize it was required! Come to think of it, I've never needed it. Maybe it was because I compiled by command line. Since you are using Visual Studio, try:

Code:

#include "stdafx.h"
#include <iostream>
#include <cstdlib>
int main() {
    std::cout << "C++ Testing";
    system("pause");
    return 0;
}

You shouldn't actually use system("pause") to temporarily pause the execution, but... you're developing on Windows, and you're using a Windows-only compiler. I'd say that's reason enough to take the easy route until you learn more.

As for stdafx.h, have you tried using something like /EHsc or /GX in the compiler/linker options? I don't remember where they go (I'm a big fan of the command line), but one should work.

HelloWorld · #3 (**permalink**) 07-18-2007, 11:33 PM

Quote:

As for stdafx.h, have you tried using something like /EHsc or /GX in the compiler/linker options? I don't remember where they go (I'm a big fan of the command line), but one should work.

Oh Crap! It seems stupid but yeah, I have no clue what you're saying on that line. Damn, are all Java developers idiot like me? XD lol... I need to know the background of C++!!! Why are there many compiler/linker option? What do you mean by that? What are those? sigh....

Lee · #4 (**permalink**) 07-19-2007, 04:34 AM

Quote:

Originally Posted by rpgfan3233

have you tried using something like /EHsc or /GX in the compiler/linker options?

I am not sure about the /EHsc but /GX should be enabled as its enabled by default in VS 2005.

More information on /GX and what it means /GX (Enable Exception Handling) (C++)

Bench · #5 (**permalink**) 07-19-2007, 05:04 AM

stdafx.h isn't required in MSVC++ - You have to disable precompiled headers in order for the compiler to not complain about it.

Look for the Precompiled Headers setting inside the C/C++ Configuration Properties for your project, and make sure its set to Not Using Precompiled Headers.

Alternatively, when making a new project in MSVC++, start with a blank solution, as opposed to a Win32 Console Project (Which enables precompiled headers by default).

Edit: By the way, if you don't want your console window to close when the program has finished running ( under MSVC++ ), use [CTRL] + [F5] to run your program (This option is known as "Start Without Debugging" under the Debug menu)

HelloWorld · #6 (**permalink**) 07-19-2007, 08:38 AM

Quote:

Originally Posted by Bench

stdafx.h isn't required in MSVC++ - You have to disable precompiled headers in order for the compiler to not complain about it.

Look for the Precompiled Headers setting inside the C/C++ Configuration Properties for your project, and make sure its set to Not Using Precompiled Headers.

Alternatively, when making a new project in MSVC++, start with a blank solution, as opposed to a Win32 Console Project (Which enables precompiled headers by default).

Edit: By the way, if you don't want your console window to close when the program has finished running ( under MSVC++ ), use [CTRL] + [F5] to run your program (This option is known as "Start Without Debugging" under the Debug menu)

I tried to find the configuration setting that you're talking about, but it seems that my eyes is just too fresh for VS2005 XD where is it located?

Bench · #7 (**permalink**) 07-19-2007, 02:08 PM

here...

HelloWorld · #8 (**permalink**) 07-19-2007, 02:14 PM

Thanx a lot Bench
I guess I need to get some glasses pretty soon lol...

#9 (**permalink**) 10-03-2007, 04:58 PM

i'm doing some work in opengl, glut and glui exactly is the libs i'm using...but the problem is this error that i can't fix to finish compiling my project.

1>------ Build started: Project: trab1, Configuration: Debug Win32 ------
1>Compiling...
1>RGBpixmap.cpp
1>c:\program files\microsoft visual studio 8\vc\include\stdlib.h(406) : error C2381: 'exit' : redefinition; __declspec(noreturn) differs
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\gl\glut.h(146) : see declaration of 'exit'
1>trab1.cpp
1>c:\program files\microsoft visual studio 8\vc\include\stdlib.h(406) : error C2381: 'exit' : redefinition; __declspec(noreturn) differs
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\gl\glut.h(146) : see declaration of 'exit'
1>g:\leic\laso\20072008\trab1_2809\trab1.cpp(1085 ) : error C3861: 'exit': identifier not found

HelloWorld · #10 (**permalink**) 10-05-2007, 07:25 PM

seems there has something to do with ur header file stdlib.h, and some other .cpp files..

but I'm not sure what's the problem... I haven't had my OpenGL set up with my visual studio.. can you please post the code for ur header file? There may be someone here that can help you out

*probable I can find out the problem too!!!*