ansi-c++-opt: Provide option --enable-c++/--disable-c++ when possible.

[gnulib.git] / tests / test-dup2.c

diff --git a/tests/test-dup2.c b/tests/test-dup2.c
index b22d1e6..cef9a30 100644 (file)
--- a/tests/test-dup2.c
+++ b/tests/test-dup2.c
@@ -1,5 +1,5 @@
 /* Test duplicating file descriptors.
-   Copyright (C) 2009 Free Software Foundation, Inc.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -20,13 +20,17 @@
 
 #include <unistd.h>
 
+#include "signature.h"
+SIGNATURE_CHECK (dup2, int, (int, int));
+
 #include <errno.h>
 #include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
 
 #include "binary-io.h"
-#include "cloexec.h"
+
+#if GNULIB_TEST_CLOEXEC
+# include "cloexec.h"
+#endif
 
 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
 /* Get declarations of the Win32 API functions.  */
@@ -34,17 +38,7 @@
 # include <windows.h>
 #endif
 
-#define ASSERT(expr) \
-  do                                                                         \
-    {                                                                        \
-      if (!(expr))                                                           \
-        {                                                                    \
-          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
-          fflush (stderr);                                                   \
-          abort ();                                                          \
-        }                                                                    \
-    }                                                                        \
-  while (0)
+#include "macros.h"
 
 /* Return non-zero if FD is open.  */
 static int
@@ -63,11 +57,12 @@ is_open (int fd)
 #endif
 }
 
+#if GNULIB_TEST_CLOEXEC
 /* Return non-zero if FD is open and inheritable across exec/spawn.  */
 static int
 is_inheritable (int fd)
 {
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
   /* On Win32, the initial state of unassigned standard file
      descriptors is that they are open but point to an
      INVALID_HANDLE_VALUE, and there is no fcntl.  */
@@ -76,14 +71,15 @@ is_inheritable (int fd)
   if (h == INVALID_HANDLE_VALUE || GetHandleInformation (h, &flags) == 0)
     return 0;
   return (flags & HANDLE_FLAG_INHERIT) != 0;
-#else
-# ifndef F_GETFD
-#  error Please port fcntl to your platform
-# endif
+# else
+#  ifndef F_GETFD
+#   error Please port fcntl to your platform
+#  endif
   int i = fcntl (fd, F_GETFD);
   return 0 <= i && (i & FD_CLOEXEC) == 0;
-#endif
+# endif
 }
+#endif /* GNULIB_TEST_CLOEXEC */
 
 #if !O_BINARY
 # define setmode(f,m) zero ()
@@ -165,6 +161,7 @@ main (void)
   ASSERT (read (fd, buffer, 1) == 1);
   ASSERT (*buffer == '2');
 
+#if GNULIB_TEST_CLOEXEC
   /* Any new fd created by dup2 must not be cloexec.  */
   ASSERT (close (fd + 2) == 0);
   ASSERT (dup_cloexec (fd) == fd + 1);
@@ -173,6 +170,7 @@ main (void)
   ASSERT (!is_inheritable (fd + 1));
   ASSERT (dup2 (fd + 1, fd + 2) == fd + 2);
   ASSERT (is_inheritable (fd + 2));
+#endif
 
   /* On systems that distinguish between text and binary mode, dup2
      reuses the mode of the source.  */