Section 3 · Library functions

EXIT_SUCCESS.3const

Package: man-pages

EXIT_SUCCESS

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
CONFORMING TO
EXAMPLES
SEE ALSO

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>
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);
}