libcxx/test/std/containers/sequences/forwardlist/forwardlist.ops/merge_pred.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <forward_list>

// template <class Compare> void merge(forward_list&& x, Compare comp);

#include <forward_list>
#include <iterator>
#include <functional>
#include <cassert>

#include "min_allocator.h"

int main()
{
    {
        typedef int T;
        typedef std::forward_list<T> C;
        const T t1[] = {13, 12, 7, 6, 5, 3};
        const T t2[] = {15, 14, 11, 10, 9, 8, 4, 2, 1, 0};
        const T t3[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
        C c1(std::begin(t1), std::end(t1));
        C c2(std::begin(t2), std::end(t2));
        c1.merge(c2, std::greater<T>());
        C c3(std::begin(t3), std::end(t3));
        assert(c1 == c3);
    }
#if __cplusplus >= 201103L
    {
        typedef int T;
        typedef std::forward_list<T, min_allocator<T>> C;
        const T t1[] = {13, 12, 7, 6, 5, 3};
        const T t2[] = {15, 14, 11, 10, 9, 8, 4, 2, 1, 0};
        const T t3[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
        C c1(std::begin(t1), std::end(t1));
        C c2(std::begin(t2), std::end(t2));
        c1.merge(c2, std::greater<T>());
        C c3(std::begin(t3), std::end(t3));
        assert(c1 == c3);
    }
#endif
}