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2001-12-11 Phil Edwards <pme@gcc.gnu.org> * testsuite/ext/allocators.cc: New file. From-SVN: r47888
104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
// 2001-11-25 Phil Edwards <pme@gcc.gnu.org>
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//
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// Copyright (C) 2001 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// 20.4.1.1 allocator members
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#undef __USE_MALLOC
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#include <memory>
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#include <cstdlib>
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#include <testsuite_hooks.h>
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typedef std::__malloc_alloc_template<3> weird_alloc;
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template class std::__malloc_alloc_template<3>;
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typedef std::__debug_alloc<weird_alloc> debug_weird_alloc;
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template class std::__debug_alloc<weird_alloc>;
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typedef std::__default_alloc_template<true, 3> unshared_normal_alloc;
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template class std::__default_alloc_template<true, 3>;
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typedef std::__default_alloc_template<false, 3> unshared_singlethreaded;
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template class std::__default_alloc_template<false, 3>;
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//std::malloc_alloc test_malloc_alloc;
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struct big
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{
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long f[15];
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};
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bool new_called;
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bool delete_called;
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std::size_t requested;
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void*
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operator new(std::size_t n) throw(std::bad_alloc)
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{
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new_called = true;
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requested = n;
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return std::malloc(n);
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}
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void
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operator delete(void *v) throw()
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{
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delete_called = true;
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return std::free(v);
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}
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template <typename arbitrary_SGIstyle_allocator,
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bool uses_global_new_and_delete>
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void test()
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{
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new_called = false;
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delete_called = false;
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requested = 0;
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std::__allocator<big, arbitrary_SGIstyle_allocator> a;
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big *p = a.allocate(10);
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if (uses_global_new_and_delete) VERIFY (requested >= (10*15*sizeof(long)));
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// Touch the far end of supposedly-allocated memory to check that we got
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// all of it. Why "3"? Because it's my favorite integer between e and pi.
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p[9].f[14] = 3;
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VERIFY (new_called == uses_global_new_and_delete );
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a.deallocate(p,10);
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VERIFY (delete_called == uses_global_new_and_delete );
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}
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// These just help tracking down error messages.
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void test01() { test<weird_alloc,false>(); }
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void test02() { test<debug_weird_alloc,false>(); }
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void test03() { test<unshared_normal_alloc,true>(); }
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void test04() { test<unshared_singlethreaded,true>(); }
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int main()
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{
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test01();
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test02();
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test03();
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test04();
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return 0;
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}
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