fork(2) download
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  1. #include <iostream>
  2. #include <exception>
  3.  
  4. class BadUrl:public std::exception
  5. {
  6.     const char* what() const noexcept {return "url is not correct!\n";}
  7. };
  8.  
  9. struct Page
  10. {
  11.     std::string data;
  12. };
  13.  
  14. Page download(const std::string& address)
  15. {
  16.     if(address.size()==0)
  17.         throw BadUrl();
  18.  
  19.     Page page;
  20.     page.data="blah blah...";
  21.     return page;
  22. }
  23.  
  24.  
  25. int main()
  26. {
  27.     try{//code haye dakhele in block check mishan
  28.         download("");
  29.     }
  30.     //khat zir exception hayee ke az class std::exception ers bordan ro migire
  31.     catch(std::exception& exc){
  32.         std::cout<< exc.what();//url is not correct chap mishe
  33.     }
  34.     //dar soorat bargardoondan exception ee
  35.     //ke az std::exception ers naborde bashe
  36.     //khat zir ejra mishe
  37.     catch(...){
  38.         std::cout<<"undefined error...";
  39.     }
  40.  
  41. }
  42.  
  43.  
Success #stdin #stdout 0s 3428KB
comments (?)
stdin
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Standard input is empty
stdout
copy 
url is not correct!
https://ideone.com/PaO9Lx
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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