libtests/POSIX/dup2.c

0001 /*
0002  * Copyright (c) 2009 by
0003  * Ralf Corsépius, Ulm, Germany. All rights reserved.
0004  *
0005  * Permission to use, copy, modify, and distribute this software
0006  * is freely granted, provided that this notice is preserved.
0007  */
0008
0009 #ifdef HAVE_CONFIG_H
0010 #include "config.h"
0011 #endif
0012
0013 #include <unistd.h>
0014
0015 int
0016 main (void)
0017 {
0018   int oldfd = 42;
0019   int newfd = 43;
0020
0021   return dup2 (oldfd, newfd);
0022 }