X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=tests%2Ftest-sys_select.c;h=78f66eddc946962ca99a174500ff07accf889200;hb=c9f0960c2cd1acf9c29b27860589698ea54fa4ec;hp=6c3547a7559d23afec9edce55b0eaeb6846abebb;hpb=57fdfd3f8ec62b105c53bcdf6f127c35c7fe7391;p=gnulib.git

diff --git a/tests/test-sys_select.c b/tests/test-sys_select.c
index 6c3547a75..78f66eddc 100644
--- a/tests/test-sys_select.c
+++ b/tests/test-sys_select.c
@@ -1,5 +1,5 @@
 /* Test of <sys/select.h> substitute.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007-2012 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
@@ -20,8 +20,39 @@
 
 #include <sys/select.h>
 
+#include "signature.h"
+
+/* The following may be macros without underlying functions, so only
+   check signature if they are not macros.  */
+#ifndef FD_CLR
+SIGNATURE_CHECK (FD_CLR, void, (int, fd_set *));
+#endif
+#ifndef FD_ISSET
+SIGNATURE_CHECK (FD_ISSET, void, (int, fd_set *));
+#endif
+#ifndef FD_SET
+SIGNATURE_CHECK (FD_SET, int, (int, fd_set *));
+#endif
+#ifndef FD_ZERO
+SIGNATURE_CHECK (FD_ZERO, void, (fd_set *));
+#endif
+
+/* Check that the 'struct timeval' type is defined.  */
+struct timeval a;
+
+/* Check that &a.tv_sec is a 'time_t *', ignoring signedness issues.  */
+typedef int verify_tv_sec_type[sizeof (a.tv_sec) == sizeof (time_t) ? 1 : -1];
+
+/* Check that sigset_t is defined.  */
+sigset_t t2;
+
 int
-main ()
+main (void)
 {
+  /* Check that FD_ZERO can be used.  This should not yield a warning
+     such as "warning: implicit declaration of function 'memset'".  */
+  fd_set fds;
+  FD_ZERO (&fds);
+
   return 0;
 }