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  1. #include <iostream>
  2. #include <string>
  3.  
  4. class OpenFileException {
  5. public:
  6. 	explicit OpenFileException(const std::string& name, int code):
  7. 	m_name(name),
  8. 	m_code(code)
  9. 	{
  10. 	}
  11.  
  12. 	std::string name() const
  13. 	{
  14. 		return m_name;
  15. 	}
  16.  
  17. 	int code() const
  18. 	{
  19. 		return m_code;
  20. 	}
  21.  
  22. private:
  23. 	std::string m_name;
  24. 	int m_code;
  25. };
  26.  
  27. void openfile(const std::string& name)
  28. {
  29. 	if (name == "fail") {
  30. 		throw OpenFileException(name, 10);
  31. 	}
  32. }
  33.  
  34. void handlefiles()
  35. {
  36. 	openfile("/home/Knjagskij/file1.txt");
  37. 	openfile("/etc/passwd");
  38. 	openfile("fail"); // Oooops...
  39. 	openfile("/etc/hosts");
  40. }
  41.  
  42. int main() {
  43. 	try {
  44. 		handlefiles();
  45. 	} catch (const OpenFileException& ex) {
  46. 		std::cout << "Unable to open file: " << ex.name() << " because of " << ex.code() << std::endl;
  47. 	}
  48.  
  49. 	return 0;
  50. }
Success #stdin #stdout 0s 3464KB
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Standard input is empty
stdout
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Unable to open file: fail because of 10
https://ideone.com/1awEGD
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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