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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Point{
  5.     float x;
  6.     float y;
  7. };
  8.  
  9. struct Path{
  10.     Point *punkt;
  11. };
  12.  
  13. void init_path(Path *&p, int size){
  14.     p = new Path[size];
  15.     for (int i = 0; i<size; i++)
  16.         p[i].punkt = 0;
  17. }
  18.  
  19. //    Potrzebny jest obiekt, który przekaże rozmiar tablicy, ponieważ
  20. //    http://stackoverflow.com/questions/968001/determine-size-of-array-if-passed-to-function
  21. void add_point(Path *p, int size, Point *po){
  22.     for (int i = 0; i<size; i++)
  23.         if (p[i].punkt == 0){
  24.             p[i].punkt = po;
  25.             break;
  26.         }
  27. }
  28.  
  29. //    Tutaj tak samo jak wyżej.
  30. void print_path(Path *p, int size){
  31.     for (int i = 0; i<size; i++)
  32.         if (p[i].punkt != 0)
  33.             cout << p[i].punkt->x << " " << p[i].punkt->y << endl;
  34. }
  35.  
  36. void del_path(Path *p, int size){
  37.     for (int i = 0; i<size; i++)
  38.         if (p[i].punkt != 0){
  39.             delete p[i].punkt;
  40.             p[i].punkt = 0;
  41.         }
  42.     delete[] p;
  43.     p = 0;
  44. }
  45.  
  46. int main() {
  47.     Path *tablica = 0;
  48.     init_path(tablica, 3);
  49.     add_point(tablica, 3, new Point{ 9, 0 });
  50.     add_point(tablica, 3, new Point{ 13, 2 });
  51.     add_point(tablica, 3, new Point{ 16.2, 7.1 });
  52.  
  53.     //    Ten element nie zostanie dodany, bo tablica jest za mała.
  54.     add_point(tablica, 3, new Point{ -2, -2 });
  55.     print_path(tablica, 3);
  56.     del_path(tablica, 3);
  57.     return 0;
  58. }
Success #stdin #stdout 0s 3272KB
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stdin
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Standard input is empty
stdout
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9 0
13 2
16.2 7.1
https://ideone.com/SxeBs7
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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