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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. float* a_predefined_2d_array = nullptr;
  5.  
  6. class Level {
  7. private:
  8.     int size;
  9.     float** a_predefined_2d_array;
  10. public:
  11.     int GetSize();
  12.     int SetSize(int);
  13.     int DoSomething();
  14.     int Load(string, int);
  15.  
  16. };
  17.  
  18. int Level::GetSize() {
  19.    return size;
  20. }
  21.  
  22. int Level::SetSize(int _size) {
  23.    size = _size;
  24. }
  25.  
  26. int Level::Load(string str, int _size) {
  27.    SetSize(_size);             //works fine!
  28.    cout<<GetSize()<<endl;      //works fine!
  29.    //basically loads everything to initiliaze the program. The point is that the above calls work fine!
  30. }
  31.  
  32. //The problem is here!!!
  33. int Level::DoSomething() {
  34.    a_predefined_2d_array = new float*[GetSize()]; //SEG FAULTS!!!
  35.    cout<<"size = "<<GetSize()<<endl; //SEG FAULTS!!!
  36. }
  37.  
  38. int main() {
  39. 	Level l{};
  40.  
  41. 	l.DoSomething();
  42.  
  43. 	return 0;
  44. }
Success #stdin #stdout 0s 3412KB
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stdin
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Standard input is empty
stdout
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size = 0
https://ideone.com/qa51JS
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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