exit_success(3const)

termination status constants

distropkg manpages-dev@6.9.1-1dataset 2026-04-01T06:19:02Z+debian+ec4110e+mandoc:1.14.6-4

Synopsis

#include <stdlib.h>
#define EXIT_SUCCESS  
0
#define EXIT_FAILURE  
/* nonzero */

—

NAME

EXIT_SUCCESS, EXIT_FAILURE - termination status constants

LIBRARY

Standard C library (libc)

SYNOPSIS

bash

#include <stdlib.h>

bash

#define EXIT_SUCCESS  \n0
\n#define EXIT_FAILURE  \n/* nonzero */

DESCRIPTION

EXIT_SUCCESS and EXIT_FAILURE represent a successful and unsuccessful exit status respectively, and can be used as arguments to the exit(3) function.

STANDARDS

C11, POSIX.1-2008.

HISTORY

C89, POSIX.1-2001.

EXAMPLES

bash

#include <stdio.h>
#include <stdlib.h>
int
main(int argc, char *argv[])
{
\n
    FILE *fp;
\n
    if (argc != 2) {
\n
        fprintf(stderr, "Usage: %s <file>\n", argv[0]);
\n
        exit(EXIT_FAILURE);
\n
    }
\n
    fp = fopen(argv[1], "r");
\n
    if (fp == NULL) {
\n
        perror(argv[1]);
\n
        exit(EXIT_FAILURE);
\n
    }
\n
    /* Other code omitted */
\n
    fclose(fp);
\n
    exit(EXIT_SUCCESS);
}