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[/] [openrisc/] [tags/] [gnu-dev/] [fsf-gcc-snapshot-1-mar-12/] [or1k-gcc/] [libstdc++-v3/] [testsuite/] [25_algorithms/] [nth_element/] [1.cc] - Rev 783
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// Copyright (C) 2005, 2009 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/>. // 25.3.2 [lib.alg.nth.element] #include <algorithm> #include <testsuite_hooks.h> #include <testsuite_iterators.h> using __gnu_test::test_container; using __gnu_test::random_access_iterator_wrapper; using std::nth_element; using std::partial_sort; typedef test_container<int, random_access_iterator_wrapper> Container; void test1() { int array[]={0}; Container con(array, array); partial_sort(con.begin(), con.begin(), con.end()); } void test2() { int array[]={2,1,0}; Container con(array, array + 2); partial_sort(con.begin(), con.begin(), con.end()); partial_sort(con.begin(), con.end(), con.end()); } void test3() { bool test __attribute__((unused)) = true; int array[] = {6, 5, 4, 3, 2, 1, 0}; Container con(array, array + 7); nth_element(con.begin(), con.it(3), con.end()); for(int i = 0; i < 3; ++i) VERIFY(array[i] < array[3]); for(int i = 4; i < 7; ++i) VERIFY(array[3] < array[i]); } void test4() { bool test __attribute__((unused)) = true; int array[] = {0, 6, 1, 5, 2, 4, 3}; Container con(array,array + 7); nth_element(con.begin(), con.it(3), con.end()); for(int i = 0; i < 3; ++i) VERIFY(array[i] < array[3]); for(int i = 4; i < 7; ++i) VERIFY(array[3] < array[i]); } int main() { test1(); test2(); test3(); test4(); }