Author: sebor
Date: Mon Mar 31 17:18:33 2008
New Revision: 643226
URL: http://svn.apache.org/viewvc?rev=643226&view=rev
Log:
2008-03-31 Martin Sebor <[EMAIL PROTECTED]>
* tests/regress/27.basic.ios.tie.stdcxx-804.cpp: Added regression
test exercising STDCXX-804.
Added:
stdcxx/trunk/tests/regress/27.basic.ios.tie.stdcxx-804.cpp (with props)
Added: stdcxx/trunk/tests/regress/27.basic.ios.tie.stdcxx-804.cpp
URL:
http://svn.apache.org/viewvc/stdcxx/trunk/tests/regress/27.basic.ios.tie.stdcxx-804.cpp?rev=643226&view=auto
==============================================================================
--- stdcxx/trunk/tests/regress/27.basic.ios.tie.stdcxx-804.cpp (added)
+++ stdcxx/trunk/tests/regress/27.basic.ios.tie.stdcxx-804.cpp Mon Mar 31
17:18:33 2008
@@ -0,0 +1,90 @@
+/************************************************************************
+ *
+ * 27.basic.ios.tie.stdcxx-804 - regression test for STDCXX-804
+ *
+ * http://issues.apache.org/jira/browse/STDCXX-804
+ *
+ * $Id$
+ *
+ ************************************************************************
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ *
+ * Copyright 2008 Rogue Wave Software, Inc.
+ *
+ **************************************************************************/
+
+#include <cassert>
+#include <cstddef>
+#include <cstdio>
+#include <sstream>
+
+// tie the first n streams together in a circular list
+void tie (std::ostringstream *ps, std::size_t n)
+{
+ for (std::size_t i = 0; i + 1 < n; ++i)
+ ps [i].tie (ps + i + 1);
+
+ if (n) {
+ std::ostream *plast = ps + (n - 1);
+ plast->tie (ps);
+ }
+}
+
+
+// detect a cycle in a list of tied streams
+bool is_cycle (const std::ostream *ps)
+{
+ if (0 == ps)
+ return false;
+
+ const std::ostream *p0, *p1;
+
+ for (p0 = ps, p1 = ps->tie (); p0 && p1;
+ p0 = p0->tie (), p1 = p1->tie () ? p1->tie ()->tie () : 0)
+ if (p0 == p1 || p0->rdbuf () == p1->rdbuf ())
+ return true;
+
+ return false;
+}
+
+int main ()
+{
+ std::ostringstream strm [32];
+ const std::size_t N = sizeof strm / sizeof *strm;
+
+ for (std::size_t i = 0; i != N; ++i) {
+
+ // tie the first i streams together in a circular list
+ tie (strm, i);
+
+ assert (0 == i || is_cycle (strm));
+
+ for (std::size_t j = 0; j != i; ++j) {
+
+ // make sure formatted and unformatted output for
+ // each of the tied streams works without getting
+ // into a deadlock or into infinite recursion
+ strm [j] << j;
+ strm [j].flush ();
+
+ assert (strm [j].good ());
+ }
+ }
+
+ return 0;
+}
Propchange: stdcxx/trunk/tests/regress/27.basic.ios.tie.stdcxx-804.cpp
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Propchange: stdcxx/trunk/tests/regress/27.basic.ios.tie.stdcxx-804.cpp
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