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  1. #include <iostream>
  2. #include <sstream>
  3. #include <stdexcept>
  4.  
  5. template <class Obj, class MemFn, class... Args>
  6. bool throws(const std::string& s, const Obj& obj, MemFn&& memfn, Args&&... args)
  7. {
  8.     try
  9.     {
  10.         (obj.*memfn)(std::forward<Args>(args)...);
  11.         std::cout << s << ": " << "Succeeded!!!" << std::endl;
  12.         return true;
  13.     }
  14.     catch (const std::exception& ex)
  15.     {
  16.         std::cout << s << ": " << "Caught : " << ex.what() << std::endl;
  17.     }
  18.     catch (...)
  19.     {
  20.         std::cout << s << ": " << "Caught unknown exception" << std::endl;
  21.     }
  22.     return false;
  23. }
  24.  
  25. template<typename T>
  26. struct Foo
  27. {
  28.     std::string name;
  29.  
  30.     int test_fn(T x, T y) const
  31.     {
  32.         if (y == T())
  33.             throw std::out_of_range("Integer division with zero-denominator");
  34.  
  35.         return x/y;
  36.     }
  37.  
  38.     int test_unknown() const
  39.     {
  40.         throw -1;
  41.     }
  42. };
  43.  
  44. int main()
  45. {
  46.     Foo<int> foo;
  47.     throws("First Test", foo, &Foo<int>::test_fn, 1, 1);
  48.     throws("Second Test", foo, &Foo<int>::test_fn, 1, 0);
  49.     throws("Third Test", foo, &Foo<int>::test_unknown);
  50.     return 0;
  51. }
Success #stdin #stdout 0s 3432KB
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stdin
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Standard input is empty
stdout
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First Test: Succeeded!!!
Second Test: Caught : Integer division with zero-denominator
Third Test: Caught unknown exception
https://ideone.com/42Fp6L
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
secret

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