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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5.  
  6. // dziala na dynamicznych tablicach tylko.
  7. template<typename T>
  8. T* my_realloc(T* src, size_t old_size, size_t new_size) {
  9. 	if(!new_size) {
  10. 		return nullptr;
  11. 	}
  12.  
  13. 	T* temp_array = new T[new_size];
  14. 	for(size_t i = 0; i < old_size; ++i) {
  15. 		temp_array[i] = src[i];
  16. 	}
  17.  
  18. 	delete[] src;
  19. 	return temp_array;
  20. }
  21.  
  22. template<typename T>
  23. void fill_array(T* array, T elem, size_t begin, size_t end) {
  24. 	for(size_t i = begin; i < end; ++i) {
  25. 		array[i] = elem;
  26. 	}
  27. }
  28.  
  29. template<typename T>
  30. void display_array(T* array, size_t size, string sep = ",") {
  31. 	for(size_t i = 0; i < size; ++i) {
  32. 		cout << array[i] << sep;
  33. 	}
  34. }
  35.  
  36. int main() {
  37. 	int* array = new int[10];
  38. 	fill_array<int>(array, 10, 0, 10);
  39. 	array = my_realloc<int>(array, 10, 20);
  40. 	fill_array<int>(array, 20, 10, 20);
  41. 	display_array<int>(array, 20);
  42. 	return 0;
  43. }
Success #stdin #stdout 0s 3472KB
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stdin
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Standard input is empty
stdout
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10,10,10,10,10,10,10,10,10,10,20,20,20,20,20,20,20,20,20,20,
https://ideone.com/Z9egXr
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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