catch block giving parse error

I can not seem to get my try/catch block to work.

I am trying to use it in a templated class and I keep getting parse errors.

Is my syntax correct?

I have also tried

Code:

template<class T>
catch(Test<T>::whoops)  // <--- This is giving me a parse error
{ cout<< " it works " << endl << endl;
    system("pause");
}

Which also gives me parse errors.

Any pointers would be appreciated.

Code:

#include <iostream>
#include <iomanip>
#include <string>

using namespace std;
template<class T>
class Test
{ private:
    T balance;
  public:
    class whoops {};
   void withdraw(float temp);
   void see();
   void SetBalance();
};

int main()
{ Test<float> data[10];
  float try_;
  int exit = 0;
  char select = '\0';

  data[0].SetBalance();

  do
   { cout<< "(1/2) ->: ";
     cin>> select;

       switch(select)
        { case '1':
             cout<< "hmm: ";
             cin>> try_;

             try
              { data[0].withdraw(try_);
              }

              catch(Test::whoops)  // <--- This is giving me a parse error
                { cout<< " it works " << endl << endl;
                  system("pause");
                }
              break;

         case '2':
                 data[0].see();
            break;
          default:
          cout<< "try again" << endl << endl;
           break;
      }
   }while(exit == 0);
      return 0;
}
template<class T>
void Test<T>::withdraw(float temp)
{   cout<< balance << endl;

  if(temp>balance)
    throw whoops();
    balance-=temp;
}
template<class T>
void TestTT>::SetBalance()
{ balance = 100;
}

template<class T>
void Test<T>::see()
{ cout<< balance;

}

Thank you,

Rich

Nowhere in your code have you defined a class called Test, so Test::whoops doesn't exist.

I thought that I defined it here. If I untemplate the class it works.

Code:

 
using namespace std;
template<class T>
class Test   // <<-- I thoght that I declared the class "TEST" here
{ private:
    T balance;
  public:
    class whoops {};
   void withdraw(float temp);
   void see();
   void SetBalance();
};

class Test // <<-- I thoght that I declared the class "TEST" here

No, you only have a recipe for making classes called:

template<class T>
class Test

After you use that recipe to make a class, you will have a class called "Test for floats" or "Test for ints", etc., but you will never have a class called just "Test". For there to be a class called just "Test", you would have to have this declaration in your code:

Code:

class Test
{

};

That is not the same as:

Code:

template<class T>
class Test 
{

};

Putting that template in your program does not create a class. It's only after you issue the commands to the compiler to use that recipe to create a class that there will be an actual class in your code. Thereafter, you have to refer to the class by its correct name, e.g. "Test for floats".

the change mentioned below should solve ur problem

Code:

catch(Test<float>::whoops)  // <--- This is giving me a parse error

also change

Code:

template<class T>
void TestTT>::SetBalance()
{ balance = 100;
}

to

Code:

template<class T>
void Test<T>::SetBalance()
{ balance = 100;
}