I run the simplesest c hello world function in codelite just to see it works well

void main ( )
{
    
    printf("hello world\n");
    
}

the cmd promt opens for q brief momet and then closes down immediatly.

what's wrong and how can I keep the cmd prompt without closing?

I excepct for the cmd prompt to stay

CodePudding user response：

From C11:

If the return type of the main function is a type compatible with int, a return from the initial call to the main function is equivalent to calling the exit function with the value returned by the main function as its argument; reaching the } that terminates the main function returns a value of 0. If the return type is not compatible with int, the termination status returned to the host environment is unspecified.

After the call to printf; control reaches the closing brace }, terminates main, and thus returns to the host environment with an exit status of EXIT_SUCCESS, or 0.

Also note that it states:

The function called at program startup is named main. The implementation declares no prototype for this function. It shall be defined with a return type of int and with no parameters:

int main (void) { /* ... */ }

or with two parameters (referred to here as argc and argv, though any names may be used, as they are local to the function in which they are declared):

int main (int argc, char *argv[]) { /* ... */ }

or equivalent; or in some other implementation-defined manner.

CodePudding user response：

You did not mention your OS, so I will assume Windows. Like other people mentioned, unless you add a call to getchr() or something similar, this is the expected behavior.

However, CodeLite does offer an option to pause your program once the execution is done.

• Right click on your project and open the settings
• Under the General tab, in the Execution section, make sure to check the option: Pause when execution ends (see attached screenshot)

What this does: Instead of running your program directly, CodeLite executes a small wrapper that will execute your program, and that wrapper pauses when its done.

HTH, Eran