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  1. #include <algorithm>
  2. #include <cassert>
  3.  
  4. template<typename T> class Array2D
  5. {
  6. public:
  7.     Array2D(size_t width, size_t height)
  8.         : width(width)
  9.         , height(height)
  10.         , p_data(new T[width * height])
  11.     {
  12.     }
  13.  
  14.     Array2D(const Array2D& other)
  15.         : width(other.width)
  16.         , height(other.height)
  17.         , p_data(new T[other.width * other.height])
  18.     {
  19.         *this = other;
  20.     }
  21.  
  22.     ~Array2D()
  23.     {
  24.         delete[] p_data;
  25.     }
  26.  
  27.     // Zugriffsoperator
  28.     T& operator()(size_t x, size_t y)
  29.     {
  30.         assert(x < width && y < height);
  31.         return p_data[y * width + x];
  32.     }
  33.  
  34.     // Zugriffsoperator (const)
  35.     const T& operator()(size_t x, size_t y) const
  36.     {
  37.         assert(x < width && y < height);
  38.         return p_data[y * width + x];
  39.     }
  40.  
  41.     // Zuweisungsoperator
  42.     Array2D& operator =(const Array2D& rhs)
  43.     {
  44.         assert(width == rhs.width && height == rhs.height);
  45.  
  46.         // Daten kopieren
  47.         std::copy(rhs.p_data, rhs.p_data + width * height, p_data);
  48.  
  49.         return *this;
  50.     }
  51.  
  52.     // Getter
  53.     size_t getWidth() const { return width; }
  54.     size_t getHeight() const { return height; }
  55.  
  56. private:
  57.     const size_t width;
  58.     const size_t height;
  59.     T* const p_data;
  60. };
  61.  
  62. int main()
  63. {
  64.     // Beispiel für Benutzung:
  65.     Array2D<int> meinArray(30, 50);
  66.     meinArray(10, 10) = 42;
  67.     meinArray(1000, 1000) = 0; // <-- Fehler, wird bei Debug vom "assert" abgefangen
  68. }
Runtime error #stdin #stdout 0s 2984KB
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Standard input is empty
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Standard output is empty
https://ideone.com/te1qHR
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
secret

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