Update copyright years.

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_filebuf / open / char / 9507.cc

diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/9507.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/9507.cc
index 860f36943f0aaef393ac4c9ae446dfa5bd77c9f6..79ab5d6d756e9773c19502136053a6f781cf7f18 100644 (file)
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/9507.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/9507.cc
@@ -1,9 +1,11 @@
-// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+// { dg-require-mkfifo "" }
+
+// Copyright (C) 2001-2024 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
 // terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 2, or (at your option)
+// Free Software Foundation; either version 3, or (at your option)
 // any later version.
 
 // This library is distributed in the hope that it will be useful,
@@ -12,9 +14,8 @@
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING.  If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
 
 // 27.8.1.3 filebuf member functions
 // @require@ %-*.tst %-*.txt
@@ -34,27 +35,29 @@
 // libstdc++/9507
 void test_06()
 {
-  bool test = true;
+  using namespace __gnu_test;
   const char* name = "tmp_fifo2";
 
   signal(SIGPIPE, SIG_IGN);
 
   unlink(name);
   mkfifo(name, S_IRWXU);
-       
-  if (!fork())
-    {
-      std::filebuf fbuf;
-      fbuf.open(name, std::ios_base::in);
-      fbuf.sgetc();
-      fbuf.close();
-      exit(0);
-    }
-
+  
   std::filebuf fbuf;
-  std::filebuf* r = fbuf.open(name, std::ios_base::out | std::ios_base::ate);
-  VERIFY( !fbuf.is_open() );
-  VERIFY( r == NULL );
+  // The use of ios_base::ate implies an attempt to seek on the file
+  // descriptor.  The seek will fail.  Thus, at the OS level, this
+  // call to "fbuf.open" will result in a call to "open" (which will
+  // succeed), a call to "lseek" (which will fail), and, finally, a
+  // call to "close" (which will succeed).  Thus, after this call, the
+  // file should be closed.
+  std::filebuf* r = fbuf.open(name,
+                             std::ios_base::in 
+                             | std::ios_base::out
+                             | std::ios_base::ate);
+  if (!r)
+    VERIFY( !fbuf.is_open() );
+  else
+    VERIFY( fbuf.is_open() );
 }
 
 int