re PR libstdc++/12352 (Exception safety problems in src/localename.cc)

2003-09-25  Paolo Carlini  <pcarlini@unitus.it>

	PR libstdc++/12352
	* src/localename.cc (locale::_Impl::_Impl(const _Impl&,
	size_t)): Don't leak if memory allocations for _M_facets,
	_M_caches, and _M_names fail.
	(locale::_Impl::_Impl(const char*, size_t)): Ditto.
	(locale::_Impl::_M_replace_categories(const _Impl*,
	category)): Ditto.
	(locale::_Impl::_M_install_facet(const locale::id*,
	const facet*)): Ditto.
	* include/bits/locale_classes.h (locale::locale(const locale&,
	_Facet*)): Don't leak memory.
	* testsuite/22_locale/locale/cons/12352.cc: New, from the PR.

	* src/localename.cc (locale::_Impl::_Impl(facet**, size_t,
	bool)): Qualify with std:: strcpy, tweak.
	* include/bits/locale_classes.h
	(locale::_Impl::_M_check_same_name): Qualify strcmp.

From-SVN: r71808

1 files changed, 124 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/22_locale/locale/cons/12352.cc b/libstdc++-v3/testsuite/22_locale/locale/cons/12352.cc
new file mode 100644
index 0000000..4263959
--- /dev/null
+++ b/libstdc++-v3/testsuite/22_locale/locale/cons/12352.cc
@@ -0,0 +1,124 @@
+// Copyright (C) 2003 Free Software Foundation
+//
+// 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.
+
+// 22.1.1.2 locale constructors and destructors [lib.locale.cons]
+
+#include <new>
+#include <locale>
+#include <cstdlib>
+#include <cstring>
+
+int times_to_fail = 0;
+
+void* allocate(std::size_t n)
+{
+  if (!times_to_fail--)
+    return 0;
+
+  void* ret = std::malloc(n ? n : 1);
+  if (ret)
+    std::memset(ret, 0xbc, n);
+  return ret;
+}
+
+void deallocate(void* p)
+{
+  if (p)
+    std::free(p);
+}
+
+void* operator new(std::size_t n) throw (std::bad_alloc)
+{
+  void* ret = allocate(n);
+  if (!ret)
+    throw std::bad_alloc();
+  return ret;
+}
+
+void* operator new[](std::size_t n) throw (std::bad_alloc)
+{
+  void* ret = allocate(n);
+  if (!ret)
+    throw std::bad_alloc();
+  return ret;
+}
+
+void operator delete(void* p) throw()
+{
+  deallocate(p);
+}
+
+void operator delete[](void* p) throw()
+{
+  deallocate(p);
+}
+
+void* operator new(std::size_t n, const std::nothrow_t&) throw()
+{
+  return allocate(n);
+}
+
+void* operator new[](std::size_t n, const std::nothrow_t&) throw()
+{
+  return allocate(n);
+}
+
+void operator delete(void* p, const std::nothrow_t&) throw()
+{
+  deallocate(p);
+}
+
+void operator delete[](void* p, const std::nothrow_t&) throw()
+{
+  deallocate(p);
+}
+
+// libstdc++/12352
+void test01(int iters)
+{
+  using namespace std;
+  bool test = true;
+
+  for (int j = 0; j < iters; ++j)
+    {
+      for (int i = 0; i < 100; ++i)
+	{
+	  times_to_fail = i;
+	  try
+	    {
+	      locale loc1("");
+	      locale loc2(loc1, locale::classic(), locale::numeric);
+	    }
+	  catch (exception&)
+	    {
+	    }
+	}
+    }
+}
+
+int main(int argc, char* argv[])
+{
+  int iters = 1;
+  if (argc > 1)
+    iters = std::atoi(argv[1]);
+  if (iters < 1)
+    iters = 1;
+  test01(iters);
+
+  return 0;
+}