unable to jump from one catch to other catch block.

mocherla14 · #1 09-Jan-2007, 06:27

Suppose we have

Code:

main()
{
try{
while(error) 
throw 1st excep
} catch(1st excep)
{
if (condition)
we have to jump to 2nd excep
is it possible?
i am unable to send from this catch to next catch.
pls help me with codin/example..........? 
}
catch(2nd excep)
{
......

}

}

WaltP · #2 09-Jan-2007, 11:03

OK, I've supposed it. Now what?

And please format your code so it can be followed.

LuciWiz · #3 09-Jan-2007, 11:44

Quote:

Originally Posted by mocherla14

Suppose we have

Code:

main()
{
try{
while(error) 
throw 1st excep
} catch(1st excep)
{
if (condition)
we have to jump to 2nd excep
is it possible?
i am unable to send from this catch to next catch.
pls help me with codin/example..........? 
}
catch(2nd excep)
{
......

}

}

The question you need to ask yourself is whether you want to actually jump to the block of code in the second catch, or to take the action you would in the second catch as well.

If the answer is the first, I guess you can only accomplish it by using the infamous "goto" statement - though I don't know why you would want that.

If the answer is the second, then you can simply implement the behavior into a function, and call it for both the first and the second catch:

CPP / C++ / C Code:

#include <iostream>

class ex1
{};
class ex2
{};

void DoStuff1()
{
	std::cout << "First action(s) to take" << std::endl;
}

void DoStuff2()
{
	std::cout << "Second action(s) to take" << std::endl;
}

int main()
{
	try
	{
		std::cout << "In try" << std::endl;
		ex1 exception1;
		throw exception1;
	}
	catch ( const ex1 & )
	{
		std::cout << "In first catch" << std::endl;
		DoStuff1();
		DoStuff2();
	}
	catch ( const ex2 & )
	{
		std::cout << "In second catch" << std::endl;
		DoStuff2();
	}
}

Or, you could have nested try - catch statements, and throw an exception of type "ex2" thrown from the catch of the first try statement - a bit counter-intuitive, I guess.

Best regards,
Lucian

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unable to jump from one catch to other catch block.

Re: unable to jump from one catch to other catch block.

Re: unable to jump from one catch to other catch block.