Exception Handling, Miscellaneous

The 'try' block can throw an exception. The catch block catches and processes the exception. 

An exception is an unwanted event that occurs during runtime and terminates the execution. Hence, an exception is nothing but a runtime error.

Wrongly written inbuilt function gives the error in compile time. All the rest are runtime errors. 

The new data type wchar_t in C++ is used to hold 16 - bit wide character. 

The statement to rethrow the exception is throw; i.e. throw without any specified exception. 

In C++, Standard Template Library(STL) contains the collection of templatised classes and functions. 

When the member variable is declared as a mutable, any constant function can modify the data items , i.e. it is declared as mutable. 

The correct sequence of statements to handle an error is

1. Hit the exception
2. Throw the exception
3. Catch the exception
4. Handle the exception

Using Run Time Type Identification (RTTI), we can find the exact type of the object using a pointer to the base class. 

Name space, a new concept is introduced in C++. Namespace defines a scope of the identifiers that are used in a program. 

The const_cast can be used to convert a constant to non-constant. It can also be used to convert the data member of a class from the const functions.  

There will be a multiple catch clause with one try block. The catch block not only catches the exception but it also processes the exception. 

We can always create a reference to an array and also reference is implicitly treated as constant pointer. Because reference to a particular variable cannot point to another variable. 

The uncaught exception calls the function terminate().

The ellipsis (...) is used by catch statement to handle all those exceptions that are not caught by other handlers. 

It is true that destructor does not return any value but a destructor does not accept any parameter. Hence, destructor cannot be overloaded.

When we are allocating the memory using new operator and allocation fail, then bad_alloc exception is thrown by the program. 

The given statements simply print the word “test”,
#define abc(x) #x
cout<<abc(test);
is equivalent to
cout<<”Test”;

All the exception thrown by the C++ standard library is derived from the std::exception class. The standard exceptions are bad_alloc, bad_cast, bad_exception, bad_typeid. 

The correct matching pairs ar