pvoidvector.h

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/******************************************************************************
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
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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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
{
  //***************************************************************************
  //***************************************************************************
  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:
 
    //*********************************************************************
    //*********************************************************************
    iterator begin()
    {
      return p_buffer;
    }
 
    //*********************************************************************
    //*********************************************************************
    const_iterator begin() const
    {
      return const_iterator(p_buffer);
    }
 
    //*********************************************************************
    //*********************************************************************
    iterator end()
    {
      return p_end;
    }
 
    //*********************************************************************
    //*********************************************************************
    const_iterator end() const
    {
      return const_iterator(p_end);
    }
 
    //*********************************************************************
    //*********************************************************************
    const_iterator cbegin() const
    {
      return const_iterator(p_buffer);
    }
 
    //*********************************************************************
    //*********************************************************************
    const_iterator cend() const
    {
      return const_iterator(p_end);
    }
 
    //*********************************************************************
    //*********************************************************************
    reverse_iterator rbegin()
    {
      return reverse_iterator(end());
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reverse_iterator rbegin() const
    {
      return const_reverse_iterator(end());
    }
 
    //*********************************************************************
    //*********************************************************************
    reverse_iterator rend()
    {
      return reverse_iterator(begin());
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reverse_iterator rend() const
    {
      return const_reverse_iterator(begin());
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reverse_iterator crbegin() const
    {
      return const_reverse_iterator(cend());
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reverse_iterator crend() const
    {
      return const_reverse_iterator(cbegin());
    }
 
    //*********************************************************************
    //*********************************************************************
    void resize(size_t new_size)
    {
      ETL_ASSERT_OR_RETURN(new_size <= CAPACITY, ETL_ERROR(vector_full));
 
      p_end = p_buffer + new_size;
    }
 
    //*********************************************************************
    //*********************************************************************
    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;
    }
 
    //*********************************************************************
    //*********************************************************************
    void uninitialized_resize(size_t new_size)
    {
      ETL_ASSERT_OR_RETURN(new_size <= CAPACITY, ETL_ERROR(vector_full));
 
      p_end = p_buffer + new_size;
    }
 
    //*********************************************************************
    //*********************************************************************
    reference operator [](size_t i)
    {
      return p_buffer[i];
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reference operator [](size_t i) const
    {
      return p_buffer[i];
    }
 
    //*********************************************************************
    //*********************************************************************
    reference at(size_t i)
    {
      ETL_ASSERT(i < size(), ETL_ERROR(vector_out_of_bounds));
      return p_buffer[i];
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reference at(size_t i) const
    {
      ETL_ASSERT(i < size(), ETL_ERROR(vector_out_of_bounds));
      return p_buffer[i];
    }
 
    //*********************************************************************
    //*********************************************************************
    reference front()
    {
      return p_buffer[0];
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reference front() const
    {
      return p_buffer[0];
    }
 
    //*********************************************************************
    //*********************************************************************
    reference back()
    {
      return *(p_end - 1);
    }
 
    //*********************************************************************
    //*********************************************************************
    const_reference back() const
    {
      return *(p_end - 1);
    }
 
    //*********************************************************************
    //*********************************************************************
    pointer data()
    {
      return p_buffer;
    }
 
    //*********************************************************************
    //*********************************************************************
    const_pointer data() const
    {
      return p_buffer;
    }
 
    //*********************************************************************
    //*********************************************************************
    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;
      }
    }
 
    //*********************************************************************
    //*********************************************************************
    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::mem_move(p_first, p_last, p_buffer) + (p_last - p_first);
    }
 
    //*********************************************************************
    //*********************************************************************
    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);
    }
 
    //*************************************************************************
    //*************************************************************************
    void clear()
    {
      initialise();
    }
 
    //*********************************************************************
    //*********************************************************************
    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;
    }
 
    //*********************************************************************
    //*********************************************************************
    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;
    }
 
    //*************************************************************************
    //*************************************************************************
    void pop_back()
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT_OR_RETURN(size() > 0, ETL_ERROR(vector_empty));
#endif
      --p_end;
    }
 
    //*********************************************************************
    //*********************************************************************
#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::mem_move(position_, end() - 1, position_ + 1);
          *position_ = value;
        }
        else
        {
          *p_end++ = value;
        }
      }
 
      return position_;
    }
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_pop.h"
#endif
 
    //*************************************************************************
    //*************************************************************************
#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::mem_move(position_, end() - 1, position_ + 1);
        *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
 
    //*************************************************************************
    //*************************************************************************
#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::mem_move(position_, end() - 1, position_ + 1);
        *position_ = value;
      }
      else
      {
        *p_end++ = value;
      }
 
      return position_;
    }
#if defined(ETL_COMPILER_GCC) && defined(ETL_IN_UNIT_TEST)
  #include "diagnostic_pop.h"
#endif
 
    //*********************************************************************
    //*********************************************************************
#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::mem_move(position_, p_end, position_ + 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
 
    //*********************************************************************
    //*********************************************************************
    template <typename TIterator>
    typename etl::enable_if<!etl::is_pointer<TIterator>::value, void>::type
      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::mem_move(position_, p_end, position_ + count);
      etl::copy(first, last, position_);
      p_end += count;
    }
 
    //*********************************************************************
    //*********************************************************************
    template <typename TIterator>
    typename etl::enable_if<etl::is_pointer<TIterator>::value, void>::type
      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::mem_move(position_, p_end, position_ + count);
      etl::mem_move((void**)first, (void**)last, position_);
      p_end += count;
    }
 
    //*********************************************************************
    //*********************************************************************
    iterator erase(iterator i_element)
    {
      etl::mem_move(i_element + 1, end(), i_element);
      --p_end;
 
      return i_element;
    }
 
    //*********************************************************************
    //*********************************************************************
    iterator erase(const_iterator i_element)
    {
      iterator i_element_ = to_iterator(i_element);
 
      etl::mem_move(i_element_ + 1, end(), i_element_);
      --p_end;
 
      return i_element_;
    }
 
    //*********************************************************************
    //*********************************************************************
    iterator erase(const_iterator first, const_iterator last)
    {
      iterator first_ = to_iterator(first);
      iterator last_  = to_iterator(last);
 
      etl::mem_move(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_;
    }
 
    //*************************************************************************
    //*************************************************************************
    etl::pvoidvector& operator = (const etl::pvoidvector& rhs)
    {
      if (&rhs != this)
      {
        this->initialise();
        this->resize(rhs.size());
        etl::mem_copy(rhs.data(), rhs.size(), this->data());
      }
 
      return *this;
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    etl::pvoidvector& operator = (etl::pvoidvector&& rhs)
    {
      if (&rhs != this)
      {
        this->initialise();
        this->resize(rhs.size());
        etl::mem_copy(rhs.data(), rhs.size(), this->data());
        rhs.initialise();
      }
 
      return *this;
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    size_type size() const
    {
      return size_t(p_end - p_buffer);
    }
 
    //*************************************************************************
    //*************************************************************************
    bool empty() const
    {
      return (p_end == p_buffer);
    }
 
    //*************************************************************************
    //*************************************************************************
    bool full() const
    {
      return size() == CAPACITY;
    }
 
    //*************************************************************************
    //*************************************************************************
    size_t available() const
    {
      return max_size() - size();
    }
 
  protected:
 
    //*********************************************************************
    //*********************************************************************
    pvoidvector(void** p_buffer_, size_t MAX_SIZE)
      : vector_base(MAX_SIZE)
      , p_buffer(p_buffer_)
      , p_end(p_buffer_)
    {
    }
 
    //*********************************************************************
    //*********************************************************************
    void initialise()
    {
      p_end = p_buffer;
    }
 
    //*************************************************************************
    //*************************************************************************
    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:
 
    //*************************************************************************
    //*************************************************************************
    iterator to_iterator(const_iterator itr) const
    {
      return const_cast<iterator>(itr);
    }
 
    // Disable copy construction.
    pvoidvector(const pvoidvector&);
  };
 
  //***************************************************************************
  //***************************************************************************
  inline bool operator ==(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return (lhs.size() == rhs.size()) && etl::equal(lhs.begin(), lhs.end(), rhs.begin());
  }
 
  //***************************************************************************
  //***************************************************************************
  inline bool operator !=(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return !(lhs == rhs);
  }
 
  //***************************************************************************
  //***************************************************************************
  inline bool operator <(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return etl::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
  }
 
  //***************************************************************************
  //***************************************************************************
  inline bool operator >(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return (rhs < lhs);
  }
 
  //***************************************************************************
  //***************************************************************************
  inline bool operator <=(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return !(lhs > rhs);
  }
 
  //***************************************************************************
  //***************************************************************************
  inline bool operator >=(const etl::pvoidvector& lhs, const etl::pvoidvector& rhs)
  {
    return !(lhs < rhs);
  }
}
 
#include "minmax_pop.h"
 
#undef ETL_IN_PVOIDVECTOR
 
#endif