From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libstdc++-v3/testsuite/20_util/owner_less/cmp.cc | 135 +++++++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 libstdc++-v3/testsuite/20_util/owner_less/cmp.cc (limited to 'libstdc++-v3/testsuite/20_util/owner_less') diff --git a/libstdc++-v3/testsuite/20_util/owner_less/cmp.cc b/libstdc++-v3/testsuite/20_util/owner_less/cmp.cc new file mode 100644 index 000000000..e1524cc18 --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/owner_less/cmp.cc @@ -0,0 +1,135 @@ +// { 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 +// . + +// 20.8.13.4 Template class owner_less [util.smartptr.ownerless] + +#include +#include +#include + +struct A { }; + +struct B { A a[2]; }; + +// 20.8.13.4 Template class owner_less [util.smartptr.ownerless] + +int +test01() +{ + bool test __attribute__((unused)) = true; + + // test empty shared_ptrs compare equivalent + std::owner_less> less; + std::owner_less> wless; + std::shared_ptr p1; + std::shared_ptr p2; + VERIFY( !less(p1, p2) && !less(p2, p1) ); + std::weak_ptr p3; + VERIFY( !less(p1, p3) && !less(p3, p1) ); + VERIFY( !wless(p1, p3) && !wless(p3, p1) ); + return 0; +} + + +// Construction from pointer +int +test02() +{ + bool test __attribute__((unused)) = true; + + std::owner_less> less; + std::owner_less> wless; + + std::shared_ptr empty; + + std::shared_ptr a1(new A); + VERIFY( less(empty, a1) || less(a1, empty) ); + + std::shared_ptr a2(new A); + VERIFY( less(a1, a2) || less(a2, a1) ); + + std::weak_ptr w1(a1); + VERIFY( !less(a1, w1) && !less(w1, a1) ); + + std::weak_ptr w2(a2); + VERIFY( wless(w1, w2) || wless(w2, w1) ); + + a1.reset(); + VERIFY( !less(empty, a1) && !less(a1, empty) ); + VERIFY( less(a1, w1) || less(w1, a1) ); + + a2.reset(); + VERIFY( !less(a2, a1) && !less(a1, a2) ); + + return 0; +} + +// aliasing +int +test03() +{ + bool test __attribute__((unused)) = true; + + std::owner_less> less; + std::owner_less> wless; + + std::shared_ptr b(new B); + std::shared_ptr a0(b, &b->a[0]); + std::shared_ptr a1(b, &b->a[1]); + // values are different but owners are equivalent: + VERIFY( a0 < a1 && !less(a0, a1) && !less(a1, a0) ); + + std::weak_ptr w0(a0); + std::weak_ptr w1(a1); + VERIFY( !wless(w0, w1) && !wless(w1, w0) ); + VERIFY( !less(a0, w1) && !less(w1, a0) ); + VERIFY( !wless(w0, a1) && !wless(a1, w0) ); + + return 0; +} + +// strict weak ordering +int +test04() +{ + bool test __attribute__((unused)) = true; + + std::owner_less> less; + + std::shared_ptr a[3]; + a[0].reset(new A); + a[1].reset(new A); + a[2].reset(new A); + std::sort(a, a+3, less); + VERIFY( !less(a[0], a[0]) ); + VERIFY( less(a[0], a[1]) && !less(a[1], a[0]) ); + VERIFY( less(a[0], a[1]) && less(a[1], a[2]) && less(a[0], a[2]) ); + + return 0; +} + +int +main() +{ + test01(); + test02(); + test03(); + test04(); + return 0; +} -- cgit v1.2.3