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  1. #include <cstddef>
  2.  
  3. class Array
  4. {
  5. public:
  6.     Array(): size(0), data(NULL) { ; }
  7.     Array(size_t s): size(s), data(new double[s]) { ; }
  8.     Array& operator=(const Array& a)
  9.     {
  10.         delete[] this->data;
  11.         this->data = new double[a.size];
  12.         for(size_t i = 0; i < a.size; ++i)
  13.             this->data[i] = a.data[i];
  14.         this->size = a.size;
  15.     	return *this;
  16.     }
  17.  
  18.     Array operator+(const Array& a)
  19.     {
  20.         Array tmp(this->size + a.size);
  21.         size_t i;
  22.         for(i = 0; i < this->size; ++i)
  23.             tmp.data[i] = this->data[i];
  24.         for(size_t j = 0; j < a.size; ++i, ++j)
  25.             tmp.data[i] = a.data[j];
  26.  
  27.         return tmp;
  28.     }
  29. private:
  30.     size_t size;
  31.     double* data;
  32. };
  33.  
  34. int main()
  35. {
  36.     Array a(5);
  37.     Array b(3);
  38.     Array c;
  39.     c = a + b;
  40.  
  41.     return 0;
  42. }
Success #stdin #stdout 0s 2980KB
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https://ideone.com/TgNtwR
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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