Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/24_iterators/container_access.cc @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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// { dg-options "-std=gnu++17" } // { dg-do run { target c++17 } } // Copyright (C) 2015-2020 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> 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); } void 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)); static 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); } void 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(); }