// -*- coding: utf-8 -*-
// Time-stamp: <array.hpp  28 sep 2016 18:05:29>

// Class for arrays of floats
// - Copy constructor and copy assignment and destructor
// - Move semantics with move constructor and move assignment
// - initializer_list constructor


#ifndef ARRAY_H
#define ARRAY_H

#include <initializer_list>


class Array {
public:
  // Constructors
  // Default constructor: no allocation
  Array();
  // Constructor from a size
  // Allocate the array but no initialization
  Array(int n); 
  // Copy constructor
  Array(const Array& a);
  // Move constructor
  Array(Array&& a);
  // Initializer list constructor
  Array(std::initializer_list<double> list);
  // Copy assignment operator
  Array& operator=(const Array& a);
  // Move assignment operator
  Array& operator=(Array&& a);
  // Access operators
  // Access operator to non constant objets
  double& operator[](int i);
  // Access operator to constant objets
  const double& operator[](int i) const;
  // Destructor
  ~Array();
  // Size
  int size() const { return length; }
private:
  // Allocate dymanic array
  // + length must be valid
  void alloc();
  // Free dynamic array
  void free();
  // Copy values from t into the dynamic array
  // + length must be valid
  // + p must valid: dynamic array already allocated
  void copy(double* t);
  int length;	// Size of the dynamic array
  double *p;	// Address of the dynamic array or nullptr if none
};
#endif