exit

raw OCR

Terminates program.

Defined in header <stdlib.h>

Syntax

#include <stdlib.h>
void exit(int status);

Portability

DOS	UNIX	Windows	ANSI C	C++ only
■	■	■	■

Remarks

exit terminates the calling process. Before termination, all files are closed, buffered output (waiting to be output) is written, and any registered "exit functions" (posted with atexit) are called.

status is provided for the calling process as the exit status of the process. Typically a value of 0 is used to indicate a normal exit, and a nonzero value indicates some error. It is set with one of the following

EXITSUCCESS Normal program termination.

EXIT FAILURE	Abnormal program termination; signal to operating system that program has terminated with an error.

Return value

None.

Example

#include <stdlib.h>
#include <conio.h>
#include <stdio.h>

int main(void)
{
   int status;
   printf("Enter either 1 or 2\n");
   status = getchO ;
   exit(status - '0');   /* sets DOS error level  */
   return 0;             /* NOTE: This line is never  reached */

Differences from modern implementations

Nothing recorded yet.

Modern references

These are search links, not yet checked by hand.

Stable link: /3.1/stdlib.h/exit/ · short form /3.1/exit/