fsfw/contrib/fsfw_contrib/etl-20.39.4/include/etl/private/pvoidvector.h

///\file

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com

Copyright(c) 2016 John Wellbelove

Permission is hereby granted, free of charge, to any person obtaining a copy
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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******************************************************************************/

#ifndef ETL_PVOIDVECTOR_INCLUDED
#define ETL_PVOIDVECTOR_INCLUDED

#define ETL_IN_PVOIDVECTOR

#include "../platform.h"
#include "../algorithm.h"
#include "vector_base.h"
#include "../type_traits.h"
#include "../error_handler.h"
#include "../functional.h"
#include "../iterator.h"

#include <stddef.h>

#include "minmax_push.h"

namespace etl
{
  //***************************************************************************
  /// The base class for void* vectors.
  ///\ingroup vector
  //***************************************************************************
  class pvoidvector : public vector_base
  {
  public:

    typedef void*                                 value_type;
    typedef value_type&                           reference;
    typedef const value_type&                     const_reference;
    typedef value_type*                           pointer;
    typedef const value_type*                     const_pointer;
    typedef value_type*                           iterator;
    typedef const value_type*                     const_iterator;
    typedef ETL_OR_STD::reverse_iterator<iterator>       reverse_iterator;
    typedef ETL_OR_STD::reverse_iterator<const_iterator> const_reverse_iterator;
    typedef size_t                                size_type;
    typedef etl::iterator_traits<iterator>::difference_type difference_type;

  public:

    //*********************************************************************
    /// Returns an iterator to the beginning of the vector.
    ///\return An iterator to the beginning of the vector.
    //*********************************************************************
    iterator begin()
    {
      return p_buffer;
    }

    //*********************************************************************
    /// Returns a const_iterator to the beginning of the vector.
    ///\return A const iterator to the beginning of the vector.
    //*********************************************************************
    const_iterator begin() const
    {
      return const_iterator(p_buffer);
    }

    //*********************************************************************
    /// Returns an iterator to the end of the vector.
    ///\return An iterator to the end of the vector.
    //*********************************************************************
    iterator end()
    {
      return p_end;
    }

    //*********************************************************************
    /// Returns a const_iterator to the end of the vector.
    ///\return A const iterator to the end of the vector.
    //*********************************************************************
    const_iterator end() const
    {
      return const_iterator(p_end);
    }

    //*********************************************************************
    /// Returns a const_iterator to the beginning of the vector.
    ///\return A const iterator to the beginning of the vector.
    //*********************************************************************
    const_iterator cbegin() const
    {
      return const_iterator(p_buffer);
    }

    //*********************************************************************
    /// Returns a const_iterator to the end of the vector.
    ///\return A const iterator to the end of the vector.
    //*********************************************************************
    const_iterator cend() const
    {
      return const_iterator(p_end);
    }

    //*********************************************************************
    /// Returns an reverse iterator to the reverse beginning of the vector.
    ///\return Iterator to the reverse beginning of the vector.
    //*********************************************************************
    reverse_iterator rbegin()
    {
      return reverse_iterator(end());
    }

    //*********************************************************************
    /// Returns a const reverse iterator to the reverse beginning of the vector.
    ///\return Const iterator to the reverse beginning of the vector.
    //*********************************************************************
    const_reverse_iterator rbegin() const
    {
      return const_reverse_iterator(end());
    }

    //*********************************************************************
    /// Returns a reverse iterator to the end + 1 of the vector.
    ///\return Reverse iterator to the end + 1 of the vector.
    //*********************************************************************
    reverse_iterator rend()
    {
      return reverse_iterator(begin());
    }

    //*********************************************************************
    /// Returns a const reverse iterator to the end + 1 of the vector.
    ///\return Const reverse iterator to the end + 1 of the vector.
    //*********************************************************************
    const_reverse_iterator rend() const
    {
      return const_reverse_iterator(begin());
    }

    //*********************************************************************
    /// Returns a const reverse iterator to the reverse beginning of the vector.
    ///\return Const reverse iterator to the reverse beginning of the vector.
    //*********************************************************************
    const_reverse_iterator crbegin() const
    {
      return const_reverse_iterator(cend());
    }

    //*********************************************************************
    /// Returns a const reverse iterator to the end + 1 of the vector.
    ///\return Const reverse iterator to the end + 1 of the vector.
    //*********************************************************************
    const_reverse_iterator crend() const
    {
      return const_reverse_iterator(cbegin());
    }

    //*********************************************************************
    /// Resizes the vector.
    /// If asserts or exceptions are enabled and the new size is larger than the
    /// maximum then a vector_full is thrown.
    ///\param new_size The new size.
    //*********************************************************************
    void resize(size_t new_size)
    {
      ETL_ASSERT_OR_RETURN(new_size <= CAPACITY, ETL_ERROR(vector_full));

      p_end = p_buffer + new_size;
    }

    //*********************************************************************
    /// Resizes the vector.
    /// If asserts or exceptions are enabled and the new size is larger than the
    /// maximum then a vector_full is thrown.
    ///\param new_size The new size.
    ///\param value   The value to fill new elements with. Default = default constructed value.
    //*********************************************************************
    void resize(size_t new_size, value_type value)
    {
      ETL_ASSERT_OR_RETURN(new_size <= CAPACITY, ETL_ERROR(vector_full));

      pointer p_new_end = p_buffer + new_size;

      // Size up if necessary.
      if (p_end < p_new_end)
      {
        etl::fill(p_end, p_new_end, value);       
      }

      p_end = p_new_end;
    }

    //*********************************************************************
    /// Resizes the vector, but does not initialise new entries.
    ///\param new_size The new size.
    //*********************************************************************
    void uninitialized_resize(size_t new_size)
    {
      ETL_ASSERT_OR_RETURN(new_size <= CAPACITY, ETL_ERROR(vector_full));

      p_end = p_buffer + new_size;
    }

    //*********************************************************************
    /// Returns a reference to the value at index 'i'
    ///\param i The index.
    ///\return A reference to the value at index 'i'
    //*********************************************************************
    reference operator [](size_t i)
    {
      return p_buffer[i];
    }

    //*********************************************************************
    /// Returns a const reference to the value at index 'i'
    ///\param i The index.
    ///\return A const reference to the value at index 'i'
    //*********************************************************************
    const_reference operator [](size_t i) const
    {
      return p_buffer[i];
    }

    //*********************************************************************
    /// Returns a reference to the value at index 'i'
    /// If asserts or exceptions are enabled, emits an etl::vector_out_of_bounds if the index is out of range.
    ///\param i The index.
    ///\return A reference to the value at index 'i'
    //*********************************************************************
    reference at(size_t i)
    {
      ETL_ASSERT(i < size(), ETL_ERROR(vector_out_of_bounds));
      return p_buffer[i];
    }

    //*********************************************************************
    /// Returns a const reference to the value at index 'i'
    /// If asserts or exceptions are enabled, emits an etl::vector_out_of_bounds if the index is out of range.
    ///\param i The index.
    ///\return A const reference to the value at index 'i'
    //*********************************************************************
    const_reference at(size_t i) const
    {
      ETL_ASSERT(i < size(), ETL_ERROR(vector_out_of_bounds));
      return p_buffer[i];
    }

    //*********************************************************************
    /// Returns a reference to the first element.
    ///\return A reference to the first element.
    //*********************************************************************
    reference front()
    {
      return p_buffer[0];
    }

    //*********************************************************************
    /// Returns a const reference to the first element.
    ///\return A const reference to the first element.
    //*********************************************************************
    const_reference front() const
    {
      return p_buffer[0];
    }

    //*********************************************************************
    /// Returns a reference to the last element.
    ///\return A reference to the last element.
    //*********************************************************************
    reference back()
    {
      return *(p_end - 1);
    }

    //*********************************************************************
    /// Returns a const reference to the last element.
    ///\return A const reference to the last element.
    //*********************************************************************
    const_reference back() const
    {
      return *(p_end - 1);
    }

    //*********************************************************************
    /// Returns a pointer to the beginning of the vector data.
    ///\return A pointer to the beginning of the vector data.
    //*********************************************************************
    pointer data()
    {
      return p_buffer;
    }

    //*********************************************************************
    /// Returns a const pointer to the beginning of the vector data.
    ///\return A const pointer to the beginning of the vector data.
    //*********************************************************************
    const_pointer data() const
    {
      return p_buffer;
    }

    //*********************************************************************
    /// Assigns values to the vector. Non-pointer
    /// If asserts or exceptions are enabled, emits vector_full if the vector does not have enough free space.
    /// If asserts or exceptions are enabled, emits vector_iterator if the iterators are reversed.
    ///\param first The iterator to the first element.
    ///\param last  The iterator to the last element + 1.
    //*********************************************************************
    template <typename TIterator>
    typename etl::enable_if<!etl::is_pointer<TIterator>::value, void>::type
      assign(TIterator first, TIterator last)
    {
#if ETL_IS_DEBUG_BUILD
      difference_type d = etl::distance(first, last);
      ETL_ASSERT_OR_RETURN(static_cast<size_t>(d) <= CAPACITY, ETL_ERROR(vector_full));
#endif

      initialise();

      while (first != last)
      {
        *p_end++ = (void*)(*first);
        ++first;
      }
    }

    //*********************************************************************
    /// Assigns values to the vector. Pointer
    /// If asserts or exceptions are enabled, emits vector_full if the vector does not have enough free space.
    /// If asserts or exceptions are enabled, emits vector_iterator if the iterators are reversed.
    ///\param first The iterator to the first element.
    ///\param last  The iterator to the last element + 1.
    //*********************************************************************
    template <typename TIterator>
    typename etl::enable_if<etl::is_pointer<TIterator>::value, void>::type
      assign(TIterator first, TIterator last)
    {
#if ETL_IS_DEBUG_BUILD     
      difference_type d = etl::distance(first, last);
      ETL_ASSERT_OR_RETURN(static_cast<size_t>(d) <= CAPACITY, ETL_ERROR(vector_full));
#endif

      initialise();

      void** p_first = (void**)(first);
      void** p_last  = (void**)(last);

      p_end = etl::copy(p_first, p_last, p_buffer);
    }

    //*********************************************************************
    /// Assigns values to the vector.
    /// If asserts or exceptions are enabled, emits vector_full if the vector does not have enough free space.
    ///\param n     The number of elements to add.
    ///\param value The value to insert for each element.
    //*********************************************************************
    void assign(size_t n, value_type value)
    {
      ETL_ASSERT_OR_RETURN(n <= CAPACITY, ETL_ERROR(vector_full));

      initialise();

      p_end = etl::fill_n(p_buffer, n, value);
    }

    //*************************************************************************
    /// Clears the vector.
    //*************************************************************************
    void clear()
    {
      initialise();
    }

    //*********************************************************************
    /// Inserts a value at the end of the vector.
    /// If asserts or exceptions are enabled, emits vector_full if the vector is already full.
    ///\param value The value to add.
    //*********************************************************************
    void push_back(value_type value)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT_OR_RETURN(size() != CAPACITY, ETL_ERROR(vector_full));
#endif
      *p_end++ = value;
    }

    //*********************************************************************
    /// Emplaces a value at the end of the vector.
    /// If asserts or exceptions are enabled, emits vector_full if the vector is already full.
    ///\param value The value to add.
    //*********************************************************************
    void emplace_back(value_type value)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT_OR_RETURN(size() != CAPACITY, ETL_ERROR(vector_full));
#endif
      * p_end++ = value;
    }

    //*************************************************************************
    /// Removes an element from the end of the vector.
    /// Does nothing if the vector is empty.
    //*************************************************************************
    void pop_back()
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT_OR_RETURN(size() > 0, ETL_ERROR(vector_empty));
#endif
      --p_end;
    }

    //*********************************************************************
    /// Inserts a value to the vector.
    /// If asserts or exceptions are enabled, emits vector_full if the vector is already full.
    ///\param position The position to insert before.
    ///\param value    The value to insert.
    //*********************************************************************
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_array_bounds_push.h"
#endif
    iterator insert(const_iterator position, value_type value)
    {
      ETL_ASSERT(size() != CAPACITY, ETL_ERROR(vector_full));

      iterator position_ = to_iterator(position);
      
      if (size() != CAPACITY)
      {
        if (position_ != end())
        {
          ++p_end;
          etl::copy_backward(position_, end() - 1, end());
          *position_ = value;
        }
        else
        {
          *p_end++ = value;
        }
      }

      return position_;
    }
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_pop.h"
#endif

    //*************************************************************************
    /// Emplaces a value to the vector at the specified position.
    /// If asserts or exceptions are enabled, emits vector_full if the vector is already full.
    //*************************************************************************
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_array_bounds_push.h"
#endif
    iterator emplace(const_iterator position)
    {
      ETL_ASSERT(size() != CAPACITY, ETL_ERROR(vector_full));

      iterator position_ = to_iterator(position);

      if (position_ != end())
      {
        ++p_end;
        etl::copy_backward(position_, end() - 1, end());
        *position_ = ETL_NULLPTR;
      }
      else
      {
        *p_end++ = ETL_NULLPTR;
      }

      return position_;
    }
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_pop.h"
#endif

    //*************************************************************************
    /// Emplaces a value to the vector at the specified position.
    /// If asserts or exceptions are enabled, emits vector_full if the vector is already full.
    //*************************************************************************
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_array_bounds_push.h"
#endif
    iterator emplace(const_iterator position, value_type value)
    {
      ETL_ASSERT(size() != CAPACITY, ETL_ERROR(vector_full));

      iterator position_ = to_iterator(position);

      if (position_ != end())
      {
        ++p_end;
        etl::copy_backward(position_, end() - 1, end());
        *position_ = value;
      }
      else
      {
        *p_end++ = value;
      }

      return position_;
    }
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_pop.h"
#endif

    //*********************************************************************
    /// Inserts 'n' values to the vector.
    /// If asserts or exceptions are enabled, emits vector_full if the vector does not have enough free space.
    ///\param position The position to insert before.
    ///\param n        The number of elements to add.
    ///\param value    The value to insert.
    //*********************************************************************
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_array_bounds_push.h"
#endif
    void insert(const_iterator position, size_t n, value_type value)
    {
      ETL_ASSERT_OR_RETURN((size() + n) <= CAPACITY, ETL_ERROR(vector_full));

      iterator position_ = to_iterator(position);

      etl::copy_backward(position_, p_end, p_end + n);
      etl::fill_n(position_, n, value);

      p_end += n;
    }
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_pop.h"
#endif

    //*********************************************************************
    /// Inserts a range of values to the vector.
    /// If asserts or exceptions are enabled, emits vector_full if the vector does not have enough free space.
    /// For fundamental and pointer types.
    ///\param position The position to insert before.
    ///\param first    The first element to add.
    ///\param last     The last + 1 element to add.
    //*********************************************************************
    template <typename TIterator>
    void insert(const_iterator position, TIterator first, TIterator last)
    {
      size_t count = etl::distance(first, last);

      iterator position_ = to_iterator(position);

      ETL_ASSERT_OR_RETURN((size() + count) <= CAPACITY, ETL_ERROR(vector_full));

      etl::copy_backward(position_, p_end, p_end + count);
      etl::copy(first, last, position_);
      p_end += count;
    }

    //*********************************************************************
    /// Erases an element.
    ///\param i_element Iterator to the element.
    ///\return An iterator pointing to the element that followed the erased element.
    //*********************************************************************
    iterator erase(iterator i_element)
    {
      etl::copy(i_element + 1, end(), i_element);
      --p_end;

      return i_element;
    }

    //*********************************************************************
    /// Erases an element.
    ///\param i_element Iterator to the element.
    ///\return An iterator pointing to the element that followed the erased element.
    //*********************************************************************
    iterator erase(const_iterator i_element)
    {
      iterator i_element_ = to_iterator(i_element);

      etl::copy(i_element_ + 1, end(), i_element_);
      --p_end;

      return i_element_;
    }

    //*********************************************************************
    /// Erases a range of elements.
    /// The range includes all the elements between first and last, including the
    /// element pointed by first, but not the one pointed by last.
    ///\param first Iterator to the first element.
    ///\param last  Iterator to the last element.
    ///\return An iterator pointing to the element that followed the erased element.
    //*********************************************************************
    iterator erase(const_iterator first, const_iterator last)
    {
      iterator first_ = to_iterator(first);
      iterator last_  = to_iterator(last);

      etl::copy(last_, end(), first_);
      size_t n_delete = static_cast<size_t>(etl::distance(first, last));

      // Just adjust the count.
      p_end -= n_delete;

      return first_;
    }

    //*************************************************************************
    /// Assignment operator.
    //*************************************************************************
    etl::pvoidvector& operator = (const etl::pvoidvector& rhs)
    {
      if (&rhs != this)
      {
        this->initialise();
        this->resize(rhs.size());
        etl::copy_n(rhs.data(), rhs.size(), this->data());
      }

      return *this;
    }

#if ETL_USING_CPP11
    //*************************************************************************
    /// Move assignment operator.
    //*************************************************************************
    etl::pvoidvector& operator = (etl::pvoidvector&& rhs)
    {
      if (&rhs != this)
      {
        this->initialise();
        this->resize(rhs.size());
        etl::copy_n(rhs.data(), rhs.size(), this->data());
        rhs.initialise();
      }

      return *this;
    }
#endif

    //*************************************************************************
    /// Gets the current size of the vector.
    ///\return The current size of the vector.
    //*************************************************************************
    size_type size() const
    {
      return size_t(p_end - p_buffer);
    }

    //*************************************************************************
    /// Checks the 'empty' state of the vector.
    ///\return <b>true</b> if empty.
    //*************************************************************************
    bool empty() const
    {
      return (p_end == p_buffer);
    }

    //*************************************************************************
    /// Checks the 'full' state of the vector.
    ///\return <b>true</b> if full.
    //*************************************************************************
    bool full() const
    {
      return size() == CAPACITY;
    }

    //*************************************************************************
    /// Returns the remaining capacity.
    ///\return The remaining capacity.
    //*************************************************************************
    size_t available() const
    {
      return max_size() - size();
    }

  protected:

    //*********************************************************************
    /// Constructor.
    //*********************************************************************
    pvoidvector(void** p_buffer_, size_t MAX_SIZE)
      : vector_base(MAX_SIZE)
      , p_buffer(p_buffer_)
      , p_end(p_buffer_)
    {
    }

    //*********************************************************************
    /// Initialise the vector.
    //*********************************************************************
    void initialise()
    {
      p_end = p_buffer;
    }

    //*************************************************************************
    /// Fix the internal pointers after a low level memory copy.
    //*************************************************************************
    void repair_buffer(void** p_buffer_)
    {
      uintptr_t length = static_cast<uintptr_t>(p_end - p_buffer);

      p_buffer = p_buffer_;
      p_end = p_buffer_ + length;
    }

    void** p_buffer;
    void** p_end;

  private:

    //*************************************************************************
    /// Convert from const_iterator to iterator
    //*************************************************************************
    iterator to_iterator(const_iterator itr) const
    {
      return const_cast<iterator>(itr);
    }

    // Disable copy construction.
    pvoidvector(const pvoidvector&);
  };

  //***************************************************************************
  /// Equal operator.
  ///\param lhs Reference to the first vector.
  ///\param rhs Reference to the second vector.
  ///\return <b>true</b> if the arrays are equal, otherwise <b>false</b>
  ///\ingroup vector
  //***************************************************************************
  inline bool operator ==(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return (lhs.size() == rhs.size()) && etl::equal(lhs.begin(), lhs.end(), rhs.begin());
  }

  //***************************************************************************
  /// Not equal operator.
  ///\param lhs Reference to the first vector.
  ///\param rhs Reference to the second vector.
  ///\return <b>true</b> if the arrays are not equal, otherwise <b>false</b>
  ///\ingroup vector
  //***************************************************************************
  inline bool operator !=(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return !(lhs == rhs);
  }

  //***************************************************************************
  /// Less than operator.
  ///\param lhs Reference to the first vector.
  ///\param rhs Reference to the second vector.
  ///\return <b>true</b> if the first vector is lexicographically less than the second, otherwise <b>false</b>
  ///\ingroup vector
  //***************************************************************************
  inline bool operator <(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return etl::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
  }

  //***************************************************************************
  /// Greater than operator.
  ///\param lhs Reference to the first vector.
  ///\param rhs Reference to the second vector.
  ///\return <b>true</b> if the first vector is lexicographically greater than the second, otherwise <b>false</b>
  ///\ingroup vector
  //***************************************************************************
  inline bool operator >(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return (rhs < lhs);
  }

  //***************************************************************************
  /// Less than or equal operator.
  ///\param lhs Reference to the first vector.
  ///\param rhs Reference to the second vector.
  ///\return <b>true</b> if the first vector is lexicographically less than or equal to the second, otherwise <b>false</b>
  ///\ingroup vector
  //***************************************************************************
  inline bool operator <=(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return !(lhs > rhs);
  }

  //***************************************************************************
  /// Greater than or equal operator.
  ///\param lhs Reference to the first vector.
  ///\param rhs Reference to the second vector.
  ///\return <b>true</b> if the first vector is lexicographically greater than or equal to the second, otherwise <b>false</b>
  ///\ingroup vector
  //***************************************************************************
  inline bool operator >=(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return !(lhs < rhs);
  }
}

#include "minmax_pop.h"

#undef ETL_IN_PVOIDVECTOR

#endif