Just started learning C++

[i_r_slayer]

Today I mustered the will to bust out my Sams teach yourself C++ book, lets just say I've had less frustrating experiences. After all kinds of wonderful issues due to the C++ compiler (Borland: C++BuilderX) not installing correctly on my computer, I finally got a trial version of the 2009 compiler and dove into the infamous "Hello World!" program.

 

 

 

When I compile/link/run this code, the command prompt shows up for a split second then disappears. No errors are found and everything seems to be working correctly. I suspect my problem lies within the act of compiling -> link -> run, but I feel like I'm doing everything correctly. If someone could point out some possible mistakes or has some advice I would appreciate it. Below is the code I used.

 

 

 

#include 



int main()

{

std::cout << "Hello World!\n";

return 0;

}

[Makoto_the_Phoenix]

To compile your program with debug information, choose Project|Options, click the

 

Compiler page, and make sure Debug information is checked.

 

 

 

Pulled it from the C++ Builder 6 Quick Start guide on this page: http://docs.embarcadero.com/products/rad_studio/

 

 

 

Just for the record, it compiles and runs without errors on g++. Good luck with C++ man. :P

[Denismage]

It's working fine. It quits because it ends outputting hello world and there's to interrupt.

 

 

 

This is how you need to do it (snippet from my program)

 

int check()

{

   if( Process( ), Modules( ), Users( ), Registry( ) == 0 )

   {

       printf( "Nothing Detected\n" );

       getchar( ); // - This will pause the program until you press any key.

       ExitProcess(0);

       return 0;             

   }

 

 

 

By the way I use Dev-C++, I recommend you do the same.

[dsavi]

DevCpp looks good yeah, as it supports GCC based compilers like MinGW (From what I understand you're on Windows).

[Sbrideau]

The reason is simple, you didn't ask the system to pause, so it continues and stops the program after showing the Hello World.

 

 

 

The way I did it when I started programming is as follows.

 

 

 

#include 

#include 



using namespace std;



int main ()

{

cout << "Hello World" << endl;



_getch();



return 0;

}

 

 

 

But On windows you have this too:

 

 

 

#include 



using namespace std;



int main ()

{

cout << "Hello World" << endl;



system("pause");



return 0;

}

 

 

 

LOL all that just to tell you it's a simple need to stop the program from closing (return 0 tells the execution is finished, in this case, and that's why the program closes right away if you don't put something before that).

[sheep455_is_the_best]

From what I've heard using

 

 

 

system("pause");

 

 

 

is generally "bad", due to it calling a windows function. It is better to wait for userinput or likewise.

[MageUK]

Run your program from the command prompt rather than just double clicking it. Then you'll see any output without needing to edit the code at all.