OOP and Exception Handling in C++

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Questions and Answers

What is the main advantage of using templates in C++ programming?

Allows functions and classes to operate with generic types, enabling them to work on many different data types without being rewritten for each one.

What is the advantage of using function templates in coding?

Using function templates allows for writing less code and makes the code easier to maintain.

What is the difference between a function template and a regular function?

A function template can work on different types at once, whereas a regular function requires separate definitions for each data type.

What is a function template, and how does it differ from overloaded functions?

A function template is a generic function that represents several functions performing the same task on different data types, and it differs from overloaded functions in that it uses less code and is type-safe. Signup and view all the answers

What is the purpose of a class template in C++?

To provide a specification for generating classes based on parameters. Signup and view all the answers

What is the purpose of the `template` keyword in a function template declaration?

The <code>template</code> keyword is used to indicate that a function template is being declared, followed by the template parameter(s) inside angle brackets. Signup and view all the answers

What is the relationship between the C++ Standard Library and the Standard Template Library (STL)?

The C++ Standard Library is based upon conventions introduced by the Standard Template Library (STL). Signup and view all the answers

What are the two valid keywords that can be used to specify the template type in a function template declaration?

The two valid keywords are <code>class</code> and <code>typename</code>, both of which behave exactly the same. Signup and view all the answers

When would you use function overloading instead of a function template?

When you need to perform identical operations on two or more types of data. Signup and view all the answers

What is an advantage of function templates in terms of user-defined specialization?

Function templates allow for user-defined specialization, enabling the creation of customized functions for specific data types. Signup and view all the answers

What is the primary advantage of using templates in combination with multiple inheritance and operator overloading?

Templates provide great utility when combined with multiple inheritance and operator overloading. Signup and view all the answers

What happens when an argument is passed to a function template at compile-time?

The compiler generates a new version of the function to work with the template argument. Signup and view all the answers

Study Notes

Function Templates

A function template is a generic function that can perform the same task on different data types, reducing code repetition.
It allows a single function to work on multiple types at once, eliminating the need for separate functions for each data type.

Benefits of Function Templates

They are instantiated at compile-time, ensuring type safety.
They use less code than overloaded C++ functions.
They allow user-defined specialization.
They can have non-type parameters.

Template Syntax

A function template starts with the template keyword, followed by the template parameter(s) inside angle brackets, and then the function declaration.
Example: template some_function(T argument) {...........}
The template type keyword can be either class or typename, both are valid and behave the same.

Generic Programming

Generic programming allows functions and classes to operate with generic types.
It enables a function or class to work on multiple data types without being rewritten for each one.
It is particularly useful when combined with multiple inheritance and operator overloading.

C++ Standard Library

The C++ Standard Library is based on the conventions introduced by the Standard Template Library (STL).

Types of Templates

Function Template

A function template behaves like a function, but with the ability to accept arguments of many different types.
It can work on different types at once, eliminating the need for separate functions for each data type.

Class Template

A class template provides a specification for generating classes based on parameters.
Class templates are generally used to implement containers.

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Description

Test your understanding of object-oriented programming concepts, including generic templates, function templates, class templates, and exceptional handling in C++. Covers try-catch blocks, multi-level exceptions, and user-defined exceptions.