vector.hpp

// Copyright (c) 2019 by Robert Bosch GmbH. All rights reserved.
// Copyright (c) 2021 by Apex.AI Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0
#ifndef IOX_HOOFS_CXX_VECTOR_HPP
#define IOX_HOOFS_CXX_VECTOR_HPP
 
#include "iceoryx_hoofs/cxx/requires.hpp"
 
#include <algorithm>
#include <cstdint>
#include <cstdio>
#include <utility>
 
namespace iox
{
namespace cxx
{
template <typename T, uint64_t Capacity>
class vector
{
  public:
    using value_type = T;
 
    using iterator = T*;
    using const_iterator = const T*;

    vector() noexcept = default;

    vector(const uint64_t count, const T& value) noexcept;

    vector(const uint64_t count) noexcept;

    vector(const vector& rhs) noexcept;

    vector(vector&& rhs) noexcept;

    ~vector() noexcept;

    vector& operator=(const vector& rhs) noexcept;

    vector& operator=(vector&& rhs) noexcept;

    iterator begin() noexcept;

    const_iterator begin() const noexcept;

    iterator end() noexcept;

    const_iterator end() const noexcept;

    T* data() noexcept;

    const T* data() const noexcept;

    //          is undefined if the element at index does not exist.
    T& at(const uint64_t index) noexcept;

    const T& at(const uint64_t index) const noexcept;

    //          is undefined if the element at index does not exist.
    T& operator[](const uint64_t index) noexcept;

    const T& operator[](const uint64_t index) const noexcept;

    T& front() noexcept;

    const T& front() const noexcept;

    T& back() noexcept;

    const T& back() const noexcept;

    uint64_t capacity() const noexcept;

    uint64_t size() const noexcept;

    bool empty() const noexcept;

    void clear() noexcept;

    template <typename... Targs>
    bool resize(const uint64_t count, const Targs&... args) noexcept;

    template <typename... Targs>
    bool emplace(const uint64_t position, Targs&&... args) noexcept;

    template <typename... Targs>
    bool emplace_back(Targs&&... args) noexcept;

    bool push_back(const T& value) noexcept;

    bool push_back(T&& value) noexcept;

    bool pop_back() noexcept;

    iterator erase(iterator position) noexcept;
 
  private:
    using element_t = uint8_t[sizeof(T)];
    alignas(T) element_t m_data[Capacity];
    uint64_t m_size = 0u;
};
} // namespace cxx
} // namespace iox
 
template <typename T, uint64_t CapacityLeft, uint64_t CapacityRight>
bool operator==(const iox::cxx::vector<T, CapacityLeft>& lhs, const iox::cxx::vector<T, CapacityRight>& rhs) noexcept;
 
template <typename T, uint64_t CapacityLeft, uint64_t CapacityRight>
bool operator!=(const iox::cxx::vector<T, CapacityLeft>& lhs, const iox::cxx::vector<T, CapacityRight>& rhs) noexcept;
 
#include "iceoryx_hoofs/internal/cxx/vector.inl"
 
#endif // IOX_HOOFS_CXX_VECTOR_HPP