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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/testsuite/20_util/weak_ptr/observers | |
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Diffstat (limited to 'libstdc++-v3/testsuite/20_util/weak_ptr/observers')
-rw-r--r-- | libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc b/libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc new file mode 100644 index 000000000..1081f93d3 --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc @@ -0,0 +1,77 @@ +// { dg-options "-std=gnu++0x" } + +// Copyright (C) 2008, 2009 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 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/>. + +// 20.8.13.3 Template class weak_ptr [util.smartptr.weak] + +#include <memory> +#include <testsuite_hooks.h> + +struct A { }; +struct B { }; + +// 20.6.6.3.5 weak_ptr observers [util.smartptr.weak.obs] + +int +test01() +{ + bool test __attribute__((unused)) = true; + + // test empty weak_ptrs compare equivalent + std::weak_ptr<A> p1; + std::weak_ptr<B> p2; + VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); + + std::shared_ptr<B> p3; + VERIFY( !p1.owner_before(p3) && !p3.owner_before(p1) ); + + return 0; +} + + +int +test02() +{ + bool test __attribute__((unused)) = true; + + std::shared_ptr<A> a0; + std::weak_ptr<A> w0(a0); + + std::shared_ptr<A> a1(new A); + std::weak_ptr<A> w1(a1); + VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) ); + + VERIFY( w1.owner_before(w0) || w0.owner_before(w1) ); + VERIFY( !(w1.owner_before(w0) && w0.owner_before(w1)) ); + + VERIFY( w1.owner_before(a0) || a0.owner_before(w1) ); + VERIFY( !(w1.owner_before(a0) && a0.owner_before(w1)) ); + + std::shared_ptr<B> b1(new B); + VERIFY( w1.owner_before(b1) || b1.owner_before(w1) ); + + return 0; +} + +int +main() +{ + test01(); + test02(); + return 0; +} |