first commit

extern/stdcxx/4.2.1/tests/regress/21.string.stdcxx-162.cpp

@@ -0,0 +1,72 @@
+/************************************************************************
+*
+* 21.string.stdcxx-162.cpp - regression test for STDCXX-162
+*
+* https://issues.apache.org/jira/browse/STDCXX-162
+*
+* $Id: 21.string.stdcxx-162.cpp 648752 2008-04-16 17:01:56Z faridz $
+*
+***************************************************************************
+*
+* 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.
+*
+**************************************************************************/
+
+#include <cassert>
+#include <string>
+
+#ifdef _RWSTD_POSIX_THREADS
+#  include <pthread.h>
+#  define MUTEX   pthread_mutex_t
+#elif _RWSTD_SOLARIS_THREADS
+#  include <thread.h>
+#  define MUTEX   mutex_t
+#endif   // _RWSTD_POSIX_THREADS
+
+int main ()
+{
+    typedef std::char_traits<char> Traits;
+    typedef std::allocator<char> Allocator;
+    typedef __rw::__string_ref<char, Traits, Allocator> strref;
+
+    struct SmallRef {
+        int ref_count;
+        std::string::size_type capacity;
+        std::string::size_type size;
+    };
+
+    // verify that the reference-counted string body isn't bigger
+    // than the struct above
+    assert (sizeof (strref) <= sizeof (SmallRef));
+
+#ifdef MUTEX
+
+    struct LargeRef {
+        MUTEX                  mutex;
+        int                    ref_count;
+        std::string::size_type capacity;
+        std::string::size_type size;
+    };
+
+    // verify that the reference-counted string body is smaller
+    // than the struct containing a full-blown mutex object above
+    assert (sizeof (strref) < sizeof (LargeRef));
+
+#endif   // MUTEX
+
+    return 0;
+}