SVN / public / code / vorlesung-08 / Array.h

// Copyright 2026, University of Freiburg,
// Chair of Algorithms and Data Structures.
// Author: Hannah Bast <bast@cs.uni-freiburg.de>.
// Author: Christoph Ullinger <ullingec@cs.uni-freiburg.de>.

#pragma once

#include <gtest/gtest_prod.h>

// A simple array that knows its size. Element type: T.
template<typename T>
class Array {
public:
  // Create from given C-style array.
  Array(T *array, int n);

  // Destructor.
  ~Array();

  // Get the element with index i.
  T operator[](int i) const;

private:
  // The elements of the array.
  T *elements_;

  // The number of elements.
  int size_;

  FRIEND_TEST(ArrayTest, Array);
};

// A simple array that knows its size. Element type: bool.
template<>
class Array<bool> {
public:
  // Create from given C-style array.
  Array(bool *array, int n);

  // Destructor.
  ~Array();

  // Get the element with index i.
  bool operator[](int i) const;

private:
  // The elements of the array.
  char elements_;

  // The number of elements.
  int size_;

  FRIEND_TEST(ArrayTest, Array);
};


// A simple array that knows its size. Element type: int.
class ArrayInt {
public:
  // Create from given C-style array.
  ArrayInt(int *array, int n);

  // Destructor.
  ~ArrayInt();

  // Get the element with index i.
  int operator[](int i) const;

private:
  // The elements of the array.
  int *elements_;

  // The number of elements.
  int size_;

  FRIEND_TEST(ArrayTest, ArrayInt);
};

// A simple array that knows its size. Element type: float.
class ArrayFloat {
public:
  // Create from given C-style array.
  ArrayFloat(float *array, int n);

  // Destructor.
  ~ArrayFloat();

  // Get the element with index i.
  float operator[](int i) const;

private:
  // The elements of the array.
  float *elements_;

  // The number of elements.
  int size_;

  FRIEND_TEST(ArrayTest, ArrayFloat);
};