[multiple changes]

2004-09-28  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/16612
	* include/bits/basic_string.h (_M_dispose, _M_refcopy,
	basic_string()): When _GLIBCXX_FULLY_DYNAMIC_STRING is defined,
	don't deal with _S_empty_rep.
	* include/bits/basic_string.tcc (_S_construct, _M_destroy,
	_M_leak_hard, _M_mutate): Likewise.
	* acinclude.m4 (GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING): New.
	* acconfig.h: Add corresponding undef.
	* configure.ac: Use GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING.
	* docs/html/configopts.html: Document --enable-fully-dynamic-string.
	* configure: Regenerate.
	* config.h.in: Likewise.

2004-09-28  Benjamin Kosnik  <bkoz@redhat.com>
            Paolo Carlini  <pcarlini@suse.de>

	* testsuite/21_strings/basic_string/operations/char/1.cc: New.
	* testsuite/21_strings/basic_string/operations/wchar_t/1.cc: New.
	* testsuite/21_strings/basic_string/element_access/char/empty.cc: New.
	* testsuite/21_strings/basic_string/element_access/wchar_t/empty.cc:
	New.

2004-09-28  Paolo Carlini  <pcarlini@suse.de>

	* README: Remove obsolete entry about include/c_shadow.

From-SVN: r88225

4 files changed, 180 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/element_access/char/empty.cc b/libstdc++-v3/testsuite/21_strings/basic_string/element_access/char/empty.cc
new file mode 100644
index 00000000000..37c9420bc13
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/element_access/char/empty.cc
@@ -0,0 +1,48 @@
+// Copyright (C) 2004 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)
+// 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+//
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <string>
+#include <testsuite_hooks.h>
+
+// as per 21.3.4
+int main()
+{
+  bool test __attribute__((unused)) = true;
+  
+  {
+    std::string empty;
+    char c = empty[0];
+    VERIFY( c == char() );
+  }
+
+  {
+    const std::string empty;
+    char c = empty[0];
+    VERIFY( c == char() );
+  }
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/element_access/wchar_t/empty.cc b/libstdc++-v3/testsuite/21_strings/basic_string/element_access/wchar_t/empty.cc
new file mode 100644
index 00000000000..b0391691dac
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/element_access/wchar_t/empty.cc
@@ -0,0 +1,48 @@
+// Copyright (C) 2004 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)
+// 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+//
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <string>
+#include <testsuite_hooks.h>
+
+// as per 21.3.4
+int main()
+{
+  bool test __attribute__((unused)) = true;
+  
+  {
+    std::wstring empty;
+    wchar_t c = empty[0];
+    VERIFY( c == wchar_t() );
+  }
+
+  {
+    const std::wstring empty;
+    wchar_t c = empty[0];
+    VERIFY( c == wchar_t() );
+  }
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/char/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/char/1.cc
new file mode 100644
index 00000000000..5194be7f5e2
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/char/1.cc
@@ -0,0 +1,42 @@
+// Copyright (C) 2004 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)
+// 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// 21.3.6 string operations
+
+#include <string>
+#include <testsuite_hooks.h>
+
+int test01(void)
+{
+  bool test __attribute__((unused)) = true;
+
+  std::string empty;
+
+  // data() for size == 0 is non-NULL.
+  VERIFY( empty.size() == 0 );
+  const std::string::value_type* p = empty.data();
+  VERIFY( p != NULL );
+
+  return 0;
+}
+
+int main()
+{ 
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/wchar_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/wchar_t/1.cc
new file mode 100644
index 00000000000..86374ccdf6a
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/wchar_t/1.cc
@@ -0,0 +1,42 @@
+// Copyright (C) 2004 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)
+// 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// 21.3.6 string operations
+
+#include <string>
+#include <testsuite_hooks.h>
+
+int test01(void)
+{
+  bool test __attribute__((unused)) = true;
+
+  std::wstring empty;
+
+  // data() for size == 0 is non-NULL.
+  VERIFY( empty.size() == 0 );
+  const std::wstring::value_type* p = empty.data();
+  VERIFY( p != NULL );
+
+  return 0;
+}
+
+int main()
+{ 
+  test01();
+  return 0;
+}