Chapter 12.2, Problem 10STE

Program Plan Intro

Namespace:

• Namespace is a group of name definitions such as definition of class and declaration of variable.
• Generally, the namespace in C++ is used in the ways of “std” namespace. The “std” namespace contains each and every name defined in the standard library files that user use such as “iostream” and “sdtdlib”.
• If the user do not place the code in some exact namespace, then the code in a namespace known as the global namespace.
  • The global namespace does not contain a “using” directive because users are continuously using the global namespace.
• Consider a name that is defined in two namespaces. When the user tends to use the namespaces that are defined that is if the user uses both namespace, then the resultant that is obtained will contain error in it.