Purpose: Pratice using various C++ error handling mechanisms. Learn to use C++ exceptions. Understand the exception class hierarchy and how to extend it. Learn about ctor options. Create an integer range class or struct named "Rangelnt". Create a ctor that accepts: [lower bound, upper bound). Create a default ctor is unbound on both upper and lower values Create the default ctor by delegating, default parameters, or default generation. Create a const member for kUnboundLower and kUnboundUpper. Create lower bound and upper bound setters and getters. Handle narrowing conversions (float, double, long, unsigned.,.. Allow std: string and c-strings for setters and handle non-valid strings. Create setters for the value and throw an exception if the value exceeds the bounds. Ensure a strong exception guarantee. Create a getter for the value. Devise a strategy for dealing with changing bounds when the value is outside the bounds. Write test code in main the exercises your code. Be sure to use a try/catch block and std:exception:what0 in your testing code. Don't forget to use noexcept and const when and where applicable. Purpose: Pratice using various C++ error handling mechanisms. Learn to use C++ exceptions. Understand the exception class hierarchy and how to extend it. Learn about ctor options. Create an integer range class or struct named "Rangelnt". Create a ctor that accepts: [lower bound, upper bound). Create a default ctor is unbound on both upper and lower values Create the default ctor by delegating, default parameters, or default generation. Create a const member for kUnboundLower and kUnboundUpper. Create lower bound and upper bound setters and getters. Handle narrowing conversions (float, double, long, unsigned.,.. Allow std: string and c-strings for setters and handle non-valid strings. Create setters for the value and throw an exception if the value exceeds the bounds. Ensure a strong exception guarantee. Create a getter for the value. Devise a strategy for dealing with changing bounds when the value is outside the bounds. Write test code in main the exercises your code. Be sure to use a try/catch block and std:exception:what0 in your testing code. Don't forget to use noexcept and const when and where applicable