Throwing Exceptions

  
#include <iostream>
using namespace std;
void foo()
{
   int  i;
   i = -15;
   throw i;
}

int main()
{
   try {
      foo();
   }
   catch(int n)
      { cerr << "exception caught\n " << n << endl; }
}

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Throwing Exceptions : Throw « Language « C++

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