EXIT_SUCCESS(3const)

NAME

EXIT_SUCCESS, EXIT_FAILURE - termination status constants

LIBRARY

Standard C library (libc)

SYNOPSIS

#include <stdlib.h>

#define EXIT_SUCCESS  0#define EXIT_FAILURE  /* 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.

CONFORMING TO

C99 and later; POSIX.1-2001 and later.

EXAMPLES

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