-// Copyright (C) 2001 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 Pred 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
-
-// 25.3.6 Heap operations [lib.alg.heap.operations]
-
-#include <algorithm>
-//#include <cmath>
-#include <testsuite_hooks.h>
-
-bool test = true;
-
-const int A[] = {1, 11, 12, 3, 10, 6, 17, 4, 8, 2, 5, 13, 9, 15, 14, 16, 7};
-const int B[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17};
-const int C[] = {17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
-const int N = sizeof(A) / sizeof(int);
-
-// This functor has the equivalent functionality of std::geater<>,
-// but there is no dependency on <functional> and it also tracks the
-// number of invocations since creation.
-class Gt
-{
-public:
- static int count() { return itsCount; }
- static void reset() { itsCount = 0; }
-
- bool
- operator()(const int& x, const int& y)
- {
- ++itsCount;
- return x > y;
- }
-
-private:
- static int itsCount;
-};
-
-int Gt::itsCount = 0;
-
-// Exercise all of the heap functions for operator<. The
-// intermediate results between push_heap and pop_heap and
-// make_heap and sort_heap are not checked (they could be).
-void
-test01()
-{
- // sort array s1 using push_heap/pop_heap
- int s1[N];
- std::copy(A, A + N, s1);
- VERIFY(std::equal(s1, s1 + N, A));
-
- for (int i = 2; i <= N; ++i) {
- std::push_heap(s1, s1 + i);
- }
- for (int i = N; i >= 2; --i) {
- std::pop_heap(s1, s1 + i);
- }
- VERIFY(std::equal(s1, s1 + N, B));
-
- // sort array s2 using make_heap/sort_heap
- int s2[N];
- std::copy(A, A + N, s2);
- VERIFY(std::equal(s2, s2 + N, A));
-
- std::make_heap(s2, s2 + N);
- std::sort_heap(s2, s2 + N);
- VERIFY(std::equal(s2, s2 + N, B));
-}
-
-// Perform same tests as above but with the comparison predicate
-// versions, and add complexity constraint checks.
-void
-test02()
-{
- Gt gt;
-// const int logN = static_cast<int>(std::log(static_cast<double>(N)) + 0.5);
- const int logN = 3;
-
- int s1[N];
- std::copy(A, A + N, s1);
- VERIFY(std::equal(s1, s1 + N, A));
-
- for (int i = 2; i <= N; ++i) {
- std::push_heap(s1, s1 + i, gt);
- VERIFY(gt.count() <= logN);
- gt.reset();
- }
-
- for (int i = N; i >= 2; --i) {
- std::pop_heap(s1, s1 + i, gt);
- VERIFY(gt.count() <= 2 * logN);
- gt.reset();
- }
-
- VERIFY(std::equal(s1, s1 + N, C));
-
- // sort array s2 using make_heap/sort_heap
- int s2[N];
- std::copy(A, A + N, s2);
- VERIFY(std::equal(s2, s2 + N, A));
-
- std::make_heap(s2, s2 + N, gt);
- VERIFY(gt.count() <= 3 * N);
- gt.reset();
-
- std::sort_heap(s2, s2 + N, gt);
- VERIFY(gt.count() <= N * logN);
-
- VERIFY(std::equal(s2, s2 + N, C));
-}
-
-int
-main(int argc, char* argv[])
-{
- test01();
- test02();
-
- return !test;
-}