diff options
| -rw-r--r-- | libstdc++-v3/testsuite/24_iterators/container_access.cc | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/24_iterators/container_access.cc b/libstdc++-v3/testsuite/24_iterators/container_access.cc new file mode 100644 index 0000000..0cbecde --- /dev/null +++ b/libstdc++-v3/testsuite/24_iterators/container_access.cc @@ -0,0 +1,89 @@ +// { dg-do run } +// { dg-options "-std=gnu++17" } + +// Copyright (C) 2015 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/>. + +// 24.8, container access [iterator.container] + +#include <iterator> +#include <vector> +#include <testsuite_hooks.h> + +bool test __attribute__((unused)) = true; + +void +test01() +{ + int i[42]; + VERIFY(std::data(i) == i); + VERIFY(std::size(i) == 42); + VERIFY(!std::empty(i)); +} + +void +test02() +{ + static constexpr int i[42]{}; + constexpr auto d = std::data(i); + static_assert(d == i); + constexpr auto s = std::size(i); + static_assert(s == 42); + constexpr auto e = std::empty(i); + static_assert(!e); +} + +int +test03() +{ + std::initializer_list<int> il{1,2,3}; + VERIFY(std::data(il) == il.begin()); + VERIFY(std::size(il) == 3); + VERIFY(!std::empty(il)); + std::initializer_list<int> il2{}; + VERIFY(std::size(il2) == 0); + VERIFY(std::empty(il2)); + constexpr std::initializer_list<int> il3{1,2,3}; + constexpr auto d = std::data(il3); + static_assert(d == il3.begin()); + constexpr auto s = std::size(il3); + static_assert(s == 3); + constexpr auto e = std::empty(il3); + static_assert(!e); + +} + +int +test04() +{ + std::vector<int> v{1,2,3}; + VERIFY(std::data(v) == v.data()); + VERIFY(std::size(v) == v.size()); + VERIFY(!std::empty(v)); + std::vector<int> v2{}; + VERIFY(std::size(v2) == v2.size()); + VERIFY(std::empty(v2)); +} + +int +main() +{ + test01(); + test02(); + test03(); + test04(); +} |