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.\" Copyright (c) 2022 by Thomas Voss <mail@thomasvoss.com>
.\"
.\" SPDX-License-Identifier: Linux-man-pages-copyleft
.\"
.\"
.TH EXIT_SUCCESS 3const (date) "Linux man-pages (unreleased)"
.SH NAME
EXIT_SUCCESS, EXIT_FAILURE \- termination status constants
.SH LIBRARY
Standard C library
.RI ( libc )
.SH SYNOPSIS
.nf
.B #include <stdlib.h>
.P
.BR "#define EXIT_SUCCESS " 0
.BR "#define EXIT_FAILURE " "/* nonzero */"
.fi
.SH DESCRIPTION
.B EXIT_SUCCESS
and
.B EXIT_FAILURE
represent a successful and unsuccessful exit status respectively,
and can be used as arguments to the
.BR exit (3)
function.
.SH STANDARDS
C11, POSIX.1-2008.
.SH HISTORY
C89, POSIX.1-2001.
.SH EXAMPLES
.\" SRC BEGIN (EXIT_SUCCESS.c)
.EX
#include <stdio.h>
#include <stdlib.h>
\&
int
main(int argc, char *argv[])
{
FILE *fp;
\&
if (argc != 2) {
fprintf(stderr, "Usage: %s <file>\en", 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);
}
.EE
.\" SRC END
.SH SEE ALSO
.BR exit (3),
.BR sysexits.h (3head)
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