// { dg-options "-std=gnu++11" } // Copyright (C) 2011-2015 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 // . #include #include #include namespace { std::size_t get_nb_bucket_elems(const std::unordered_multimap& um) { std::size_t nb = 0; for (std::size_t b = 0; b != um.bucket_count(); ++b) nb += um.bucket_size(b); return nb; } } void test01() { bool test __attribute__((unused)) = true; typedef std::unordered_multimap Mmap; typedef Mmap::iterator iterator; typedef Mmap::const_iterator const_iterator; typedef Mmap::value_type value_type; Mmap mm1; mm1.insert(value_type("foo", 10)); mm1.insert(value_type("foo", 11)); mm1.insert(value_type("foo", 12)); mm1.insert(value_type("foo", 13)); mm1.insert(value_type("foo", 14)); mm1.insert(value_type("foo", 15)); mm1.insert(value_type("bar", 20)); mm1.insert(value_type("bar", 21)); mm1.insert(value_type("bar", 22)); mm1.insert(value_type("bar", 23)); mm1.insert(value_type("bar", 24)); mm1.insert(value_type("bar", 25)); VERIFY( mm1.size() == 12 ); VERIFY( get_nb_bucket_elems(mm1) == mm1.size() ); VERIFY( distance(mm1.begin(), mm1.end()) - mm1.size() == 0 ); VERIFY( mm1.erase(mm1.begin()) != mm1.end() ); VERIFY( mm1.size() == 11 ); VERIFY( get_nb_bucket_elems(mm1) == mm1.size() ); VERIFY( distance(mm1.begin(), mm1.end()) - mm1.size() == 0 ); auto it = mm1.begin(); advance(it, 2); VERIFY( mm1.erase(mm1.begin(), it) != mm1.end() ); VERIFY( mm1.size() == 9 ); VERIFY( get_nb_bucket_elems(mm1) == mm1.size() ); VERIFY( distance(mm1.begin(), mm1.end()) - mm1.size() == 0 ); VERIFY( mm1.erase(mm1.begin()->first) == 3 ); VERIFY( mm1.size() == 6 ); VERIFY( get_nb_bucket_elems(mm1) == mm1.size() ); VERIFY( distance(mm1.begin(), mm1.end()) - mm1.size() == 0 ); VERIFY( mm1.erase(mm1.begin(), mm1.end()) == mm1.end() ); VERIFY( mm1.empty() ); VERIFY( get_nb_bucket_elems(mm1) == mm1.size() ); VERIFY( distance(mm1.begin(), mm1.end()) - mm1.size() == 0 ); } int main() { test01(); return 0; }