etl/basic_string.h

///\file

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

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

Copyright(c) 2016 jwellbelove

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
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******************************************************************************/

#ifndef __ETL_BASIC_STRING__
#define __ETL_BASIC_STRING__

#include <stddef.h>
#include <stdint.h>
#include <iterator>

#include "ibasic_string.h"
#include "container.h"
#include "alignment.h"
#include "array.h"

//*****************************************************************************
///\defgroup basic_string basic_string
/// A basic_string with the capacity defined at compile time.
///\ingroup containers
//*****************************************************************************

namespace etl
{
  template <typename T, const size_t MAX_SIZE_>
  //***************************************************************************
  /// A basic_string implementation that uses a fixed size buffer.
  ///\tparam T The element type.
  ///\tparam MAX_SIZE_ The maximum number of elements that can be stored.
  ///\ingroup basic_string
  //***************************************************************************
  class basic_string : public ibasic_string<T>
  {
  public:

    static const size_t MAX_SIZE = MAX_SIZE_;

    //*************************************************************************
    /// Constructor.
    //*************************************************************************
    basic_string()
      : ibasic_string<T>(reinterpret_cast<T*>(&buffer), MAX_SIZE)
    {
      ibasic_string<T>::initialise();
    }

    //*************************************************************************
    /// Constructor, with size.
    ///\param initialSize The initial size of the basic_string.
    //*************************************************************************
    explicit basic_string(size_t initialSize)
      : ibasic_string<T>(reinterpret_cast<T*>(&buffer), MAX_SIZE)
    {
      ibasic_string<T>::initialise();
      ibasic_string<T>::resize(initialSize);
    }

    //*************************************************************************
    /// Constructor, from null terminated text.
    ///\param text The initial text of the basic_string.
    //*************************************************************************
    basic_string(const T* text)
      : ibasic_string<T>(reinterpret_cast<T*>(&buffer), MAX_SIZE)
    {
      ibasic_string<T>::initialise();
      ibasic_string<T>::assign(text, text + strlen)
    }
    
    //*************************************************************************
    /// Constructor, from initial size and value.
    ///\param initialSize  The initial size of the basic_string.
    ///\param value        The value to fill the basic_string with.
    //*************************************************************************
    basic_string(size_t initialSize, typename ibasic_string<T>::parameter_t value)
      : ibasic_string<T>(reinterpret_cast<T*>(&buffer), MAX_SIZE)
    {
      ibasic_string<T>::initialise();
      ibasic_string<T>::resize(initialSize, value);
    }

    //*************************************************************************
    /// Constructor, from an iterator range.
    ///\tparam TIterator The iterator type.
    ///\param first The iterator to the first element.
    ///\param last  The iterator to the last element + 1.
    //*************************************************************************
    template <typename TIterator>
    basic_string(TIterator first, TIterator last)
      : ibasic_string<T>(reinterpret_cast<T*>(&buffer), MAX_SIZE)
    {
      ibasic_string<T>::assign(first, last);
    }

    //*************************************************************************
    /// Assignment operator.
    //*************************************************************************
    basic_string& operator = (const basic_string& rhs)
    {
      if (&rhs != this)
      {
        ibasic_string<T>::assign(rhs.cbegin(), rhs.cend());
      }

      return *this;
    }

  private:

    typename etl::aligned_storage<sizeof(T) * MAX_SIZE, etl::alignment_of<T>::value>::type buffer;
  };
}

#endif