[PATCH] EXIT_SUCCESS.3const EXIT_FAILURE.3const: Add pages

[Thomas Voss <mail@thomasvoss.com>]

I see we have manuals for constants, types, and more now!  That sure brings a
smile to my face :).  I guess I might help out a bit will filling out some of
the missing manuals.

Signed-off-by: Thomas Voss <mail@thomasvoss.com>
---
 man3const/EXIT_FAILURE.3const |  1 +
 man3const/EXIT_SUCCESS.3const | 58 +++++++++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 man3const/EXIT_FAILURE.3const
 create mode 100644 man3const/EXIT_SUCCESS.3const

diff --git a/man3const/EXIT_FAILURE.3const b/man3const/EXIT_FAILURE.3const
new file mode 100644
index 000000000..ba0d62df9
--- /dev/null
+++ b/man3const/EXIT_FAILURE.3const
@@ -0,0 +1 @@
+.so man3const/EXIT_SUCCESS.3const
diff --git a/man3const/EXIT_SUCCESS.3const b/man3const/EXIT_SUCCESS.3const
new file mode 100644
index 000000000..dd6f908e5
--- /dev/null
+++ b/man3const/EXIT_SUCCESS.3const
@@ -0,0 +1,58 @@
+.\" 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>
+.PP
+.B "#define EXIT_SUCCESS  /* ... */"
+.B "#define EXIT_FAILURE  /* ... */"
+.fi
+.SH DESCRIPTION
+.BR EXIT_SUCCESS " and " EXIT_FAILURE
+represent a successful and unsuccessful exit status respectively.
+Both macros are constant expressions of type
+.I int
+which can be used as arguments to the
+.BR exit ()
+function.
+.SH CONFORMING TO
+C99 and later;
+POSIX.1-2001 and later.
+.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);
+    }
+
+    if ((fp = fopen(argv[1], "r")) == NULL) {
+        perror(argv[1]);
+        exit(EXIT_FAILURE);
+    }
+
+    /* Other code omitted */
+
+    exit(EXIT_SUCCESS);
+}
+.EE
+.\" SRC END
+.SH SEE ALSO
+.BR exit (3)
-- 
2.38.1