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.

STANDARDS
C11, POSIX.1-2024.

HISTORY

EXIT_SUCCESS
    C89, POSIX.1-1988.

EXIT_FAILURE
    C89, POSIX.1-1990.

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

    int
    main(int argc, char *argv[])
    {
        FILE *fp;

        if (argc != 2) {
            fprintf(stderr, "Usage: %s <file>\n", argv[0]);
            exit(EXIT_FAILURE);
        }

        fp = fopen(argv[1], "r");
        if (fp == NULL) {
            perror(argv[1]);
            exit(EXIT_FAILURE);
        }

        /* Other code omitted */

        fclose(fp);
        exit(EXIT_SUCCESS);
    }

SEE ALSO
exit(3), sysexits.h(3head)