Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / ext / pool_allocator / allocate_chunk.cc

diff --git a/libstdc++-v3/testsuite/ext/pool_allocator/allocate_chunk.cc b/libstdc++-v3/testsuite/ext/pool_allocator/allocate_chunk.cc
new file mode 100644 (file)
index 0000000..9836458
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/pool_allocator/allocate_chunk.cc
@@ -0,0 +1,62 @@
+// 2004-10-10  Paolo Carlini  <pcarlini@suse.de>
+
+// 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/>.
+
+// 20.4.1.1 allocator members
+
+#include <ext/pool_allocator.h>
+
+struct small
+{
+  char c[16];
+};
+
+struct big
+{
+  char c[64];
+};
+
+void*
+operator new(size_t n) throw(std::bad_alloc)
+{
+  static bool first = true;
+  if (!first)
+    throw std::bad_alloc();
+  first = false;
+  return std::malloc(n);
+}
+
+// http://gcc.gnu.org/ml/libstdc++/2004-10/msg00098.html
+void test01()
+{
+  using __gnu_cxx::__pool_alloc;
+
+  __pool_alloc<big> alloc_big;
+  alloc_big.allocate(1);
+
+  // The constant 20 comes from __pool_alloc_base::_M_refill. See
+  // also __pool_alloc_base::_M_allocate_chunk.
+  __pool_alloc<small> alloc_small;
+  for (unsigned int i = 0; i < 20 * sizeof(big) / sizeof(small) + 1; ++i)
+    alloc_small.allocate(1);
+}
+
+int main()
+{
+  test01();
+}