test/std/containers/sequences/list/list.cons/size_type.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <list>

// explicit list(size_type n);

#include <list>
#include <cassert>
#include <cstddef>
#include "test_macros.h"
#include "DefaultOnly.h"
#include "test_allocator.h"
#include "min_allocator.h"

template <class T, class Allocator>
void
test3(unsigned n, Allocator const &alloc = Allocator())
{
#if TEST_STD_VER > 11
    typedef std::list<T, Allocator> C;
    {
    C d(n, alloc);
    assert(d.size() == n);
    assert(static_cast<std::size_t>(std::distance(d.begin(), d.end())) == n);
    assert(d.get_allocator() == alloc);
    }
#else
    ((void)n);
    ((void)alloc);
#endif
}


int main(int, char**)
{
    {
        std::list<int> l(3);
        assert(l.size() == 3);
        assert(std::distance(l.begin(), l.end()) == 3);
        std::list<int>::const_iterator i = l.begin();
        assert(*i == 0);
        ++i;
        assert(*i == 0);
        ++i;
        assert(*i == 0);
    }
    {
        // Add 2 for implementations that dynamically allocate a sentinel node and container proxy.
        std::list<int, limited_allocator<int, 3 + 2> > l(3);
        assert(l.size() == 3);
        assert(std::distance(l.begin(), l.end()) == 3);
        std::list<int>::const_iterator i = l.begin();
        assert(*i == 0);
        ++i;
        assert(*i == 0);
        ++i;
        assert(*i == 0);
    }
#if TEST_STD_VER > 11
    {
        typedef std::list<int, min_allocator<int> > C;
        C l(3, min_allocator<int> ());
        assert(l.size() == 3);
        assert(std::distance(l.begin(), l.end()) == 3);
        C::const_iterator i = l.begin();
        assert(*i == 0);
        ++i;
        assert(*i == 0);
        ++i;
        assert(*i == 0);
        test3<int, min_allocator<int>> (3);
    }
#endif
#if TEST_STD_VER >= 11
    {
        std::list<DefaultOnly> l(3);
        assert(l.size() == 3);
        assert(std::distance(l.begin(), l.end()) == 3);
    }
    {
        std::list<int, min_allocator<int>> l(3);
        assert(l.size() == 3);
        assert(std::distance(l.begin(), l.end()) == 3);
        std::list<int, min_allocator<int>>::const_iterator i = l.begin();
        assert(*i == 0);
        ++i;
        assert(*i == 0);
        ++i;
        assert(*i == 0);
    }
    {
        std::list<DefaultOnly, min_allocator<DefaultOnly>> l(3);
        assert(l.size() == 3);
        assert(std::distance(l.begin(), l.end()) == 3);
    }
#endif

  return 0;
}