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Diffstat (limited to 'libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf')
-rw-r--r--libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/char/2832.cc74
-rw-r--r--libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/wchar_t/2832.cc72
2 files changed, 146 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/char/2832.cc b/libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/char/2832.cc
new file mode 100644
index 000000000..51f5547b6
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/char/2832.cc
@@ -0,0 +1,74 @@
+// 2001-05-23 Benjamin Kosnik <bkoz@redhat.com>
+
+// Copyright (C) 2001, 2002, 2003, 2009 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 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// 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 COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 27.7.3.2 member functions (ostringstream_members)
+
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void
+redirect_buffer(std::ios& stream, std::streambuf* new_buf)
+{ stream.rdbuf(new_buf); }
+
+std::streambuf*
+active_buffer(std::ios& stream)
+{ return stream.rdbuf(); }
+
+// libstdc++/2832
+void test02()
+{
+ bool test __attribute__((unused)) = true;
+ const char* strlit01 = "fuck war";
+ const std::string str00;
+ const std::string str01(strlit01);
+ std::string str02;
+ std::stringbuf sbuf(str01);
+ std::streambuf* pbasebuf0 = &sbuf;
+
+ std::ostringstream sstrm1;
+ VERIFY( sstrm1.str() == str00 );
+ // derived rdbuf() always returns original streambuf, even though
+ // it's no longer associated with the stream.
+ std::stringbuf* const buf1 = sstrm1.rdbuf();
+ // base rdbuf() returns the currently associated streambuf
+ std::streambuf* pbasebuf1 = active_buffer(sstrm1);
+ redirect_buffer(sstrm1, &sbuf);
+ std::stringbuf* const buf2 = sstrm1.rdbuf();
+ std::streambuf* pbasebuf2 = active_buffer(sstrm1);
+ VERIFY( buf1 == buf2 );
+ VERIFY( pbasebuf1 != pbasebuf2 );
+ VERIFY( pbasebuf2 == pbasebuf0 );
+
+ // derived rdbuf() returns the original buf, so str() doesn't change.
+ VERIFY( sstrm1.str() != str01 );
+ VERIFY( sstrm1.str() == str00 );
+ // however, casting the active streambuf to a stringbuf shows what's up:
+ std::stringbuf* psbuf = dynamic_cast<std::stringbuf*>(pbasebuf2);
+ str02 = psbuf->str();
+ VERIFY( str02 == str01 );
+
+ // How confusing and non-intuitive is this?
+ // These semantics are a joke, a serious defect, and incredibly lame.
+}
+
+int main()
+{
+ test02();
+ return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/wchar_t/2832.cc b/libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/wchar_t/2832.cc
new file mode 100644
index 000000000..b89464043
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_ostringstream/rdbuf/wchar_t/2832.cc
@@ -0,0 +1,72 @@
+// Copyright (C) 2004, 2009 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 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// 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 COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 27.7.3.2 member functions (ostringstream_members)
+
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void
+redirect_buffer(std::wios& stream, std::wstreambuf* new_buf)
+{ stream.rdbuf(new_buf); }
+
+std::wstreambuf*
+active_buffer(std::wios& stream)
+{ return stream.rdbuf(); }
+
+// libstdc++/2832
+void test02()
+{
+ bool test __attribute__((unused)) = true;
+ const wchar_t* strlit01 = L"fuck war";
+ const std::wstring str00;
+ const std::wstring str01(strlit01);
+ std::wstring str02;
+ std::wstringbuf sbuf(str01);
+ std::wstreambuf* pbasebuf0 = &sbuf;
+
+ std::wostringstream sstrm1;
+ VERIFY( sstrm1.str() == str00 );
+ // derived rdbuf() always returns original streambuf, even though
+ // it's no longer associated with the stream.
+ std::wstringbuf* const buf1 = sstrm1.rdbuf();
+ // base rdbuf() returns the currently associated streambuf
+ std::wstreambuf* pbasebuf1 = active_buffer(sstrm1);
+ redirect_buffer(sstrm1, &sbuf);
+ std::wstringbuf* const buf2 = sstrm1.rdbuf();
+ std::wstreambuf* pbasebuf2 = active_buffer(sstrm1);
+ VERIFY( buf1 == buf2 );
+ VERIFY( pbasebuf1 != pbasebuf2 );
+ VERIFY( pbasebuf2 == pbasebuf0 );
+
+ // derived rdbuf() returns the original buf, so str() doesn't change.
+ VERIFY( sstrm1.str() != str01 );
+ VERIFY( sstrm1.str() == str00 );
+ // however, casting the active streambuf to a stringbuf shows what's up:
+ std::wstringbuf* psbuf = dynamic_cast<std::wstringbuf*>(pbasebuf2);
+ str02 = psbuf->str();
+ VERIFY( str02 == str01 );
+
+ // How confusing and non-intuitive is this?
+ // These semantics are a joke, a serious defect, and incredibly lame.
+}
+
+int main()
+{
+ test02();
+ return 0;
+}