CODEWITHSUNDEEP
c++visual-studio-2010exception
Abdul Samad
Abdul Samad

Reputation: 5918

Exception mechanism issue in c++

I am calling a function and I am throwing an exception in that function. But I don't want to catch that in the same function but want to catch it where that function was called, like here is my example code.

void foo()throw(...){
  std::cout << "FOO" <<std::endl;
  throw "Found"; 
}
void main(){
  try{
      foo();
  }
  catch(...){
   std::cout << "exception catched" <<std::endl;
  }
}

But it is crashing at the point where I am throwing the exception in foo function, but I want to catch it in the main function.

How would I do that?

Upvotes: 1

Views: 194

Answers (2)

Abdul Samad
Abdul Samad

Reputation: 5918

Got answer my own question at http://msdn.microsoft.com/en-US/library/wfa0edys%28v=VS.80%29.aspx

Upvotes: 0

James McNellis
James McNellis

Reputation: 355009

throw;

throw with no operand rethrows the exception that is currently being handled. That means it can only be used in a catch block. Since you aren't in a catch block when the throw; is executed, the program is terminated.

You need to throw something, like a runtime error: throw std::runtime_error("oops");.

Note also that exception specifications (e.g. the throw(...) in void foo() throw(...)) should not be used. For an explanation as to why, see "A Pragmatic Look at Exception Specifications."

Upvotes: 2

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