llvm/libcxx/test/std/containers/sequences/vector.bool/insert_iter_value.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
//
//===----------------------------------------------------------------------===//

// <vector>
// vector<bool>

// iterator insert(const_iterator position, const value_type& x);

#include <vector>
#include <cassert>
#include <cstddef>

#include "test_macros.h"
#include "min_allocator.h"

TEST_CONSTEXPR_CXX20 bool tests()
{
    {
        std::vector<bool> v(100);
        std::vector<bool>::iterator i = v.insert(v.cbegin() + 10, 1);
        assert(v.size() == 101);
        assert(i == v.begin() + 10);
        std::size_t j;
        for (j = 0; j < 10; ++j)
            assert(v[j] == 0);
        assert(v[j] == 1);
        for (++j; j < v.size(); ++j)
            assert(v[j] == 0);
    }
    {
        std::vector<bool> v(100);
        while(v.size() < v.capacity()) v.push_back(false);
        std::size_t sz = v.size();
        std::vector<bool>::iterator i = v.insert(v.cbegin() + 10, 1);
        assert(v.size() == sz + 1);
        assert(i == v.begin() + 10);
        std::size_t j;
        for (j = 0; j < 10; ++j)
            assert(v[j] == 0);
        assert(v[j] == 1);
        for (++j; j < v.size(); ++j)
            assert(v[j] == 0);
    }
    {
        std::vector<bool> v(100);
        while(v.size() < v.capacity()) v.push_back(false);
        v.pop_back(); v.pop_back();
        std::size_t sz = v.size();
        std::vector<bool>::iterator i = v.insert(v.cbegin() + 10, 1);
        assert(v.size() == sz + 1);
        assert(i == v.begin() + 10);
        std::size_t j;
        for (j = 0; j < 10; ++j)
            assert(v[j] == 0);
        assert(v[j] == 1);
        for (++j; j < v.size(); ++j)
            assert(v[j] == 0);
    }
#if TEST_STD_VER >= 11
    {
        std::vector<bool, explicit_allocator<bool>> v(10);
        std::vector<bool, explicit_allocator<bool>>::iterator i
            = v.insert(v.cbegin() + 10, 1);
        assert(v.size() == 11);
        assert(i == v.begin() + 10);
        assert(*i == 1);
    }
    {
        std::vector<bool, min_allocator<bool>> v(100);
        std::vector<bool, min_allocator<bool>>::iterator i = v.insert(v.cbegin() + 10, 1);
        assert(v.size() == 101);
        assert(i == v.begin() + 10);
        std::size_t j;
        for (j = 0; j < 10; ++j)
            assert(v[j] == 0);
        assert(v[j] == 1);
        for (++j; j < v.size(); ++j)
            assert(v[j] == 0);
    }
#endif

    return true;
}

int main(int, char**)
{
    tests();
#if TEST_STD_VER > 17
    static_assert(tests());
#endif
    return 0;
}