// Copyright (C) 2005 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 2, 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 COPYING. If not, write to the Free // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // USA. // 25.3.4 [lib.alg.merge] #include <algorithm> #include <testsuite_hooks.h> #include <testsuite_iterators.h> using __gnu_test::test_container; using __gnu_test::input_iterator_wrapper; using __gnu_test::output_iterator_wrapper; using std::merge; typedef test_container<int, input_iterator_wrapper> Icontainer; typedef test_container<int, output_iterator_wrapper> Ocontainer; void test1() { int array1[1], array2[1]; Icontainer con1(array1, array1); Icontainer con2(array1, array1); Ocontainer con3(array2, array2); VERIFY(merge(con1.begin(), con1.end(), con2.begin(), con2.end(), con3.begin()).ptr == array2); } void test2() { int array1[]={0,1,4}; int array2[]={2,3}; int array3[5]; Icontainer con1(array1, array1 + 3); Icontainer con2(array2, array2 + 2); Ocontainer con3(array3, array3 + 5); VERIFY(merge(con1.begin(), con1.end(), con2.begin(), con2.end(), con3.begin()).ptr == array3 + 5); VERIFY(array3[0] == 0 && array3[1] == 1 && array3[2] == 2 && array3[3] == 3 && array3[4] == 4); } struct S { int i; int j; S() {} S(int in) { if(in > 0) { i = in; j = 1; } else { i = -in; j = 0; } } }; bool operator<(const S& s1, const S& s2) { return s1.i < s2.i; } void test3() { S array1[] = { -1 , -3}; S array2[] = { 1, 2, 3}; S array3[5]; merge(array1, array1 + 2, array2, array2 + 3, array3); VERIFY(array3[0].j == 0 && array3[1].j == 1 && array3[2].j == 1 && array3[3].j == 0 && array3[4].j == 1); } int main() { test1(); test2(); test3(); }