What is typedef in C++ ?
-The typedef keyword allows the programmer to create new names for types such as int or, more commonly in C++,
-C++ allows you to define explicitly new data type names by using the keyword typedef.
-Using typedef doest not actually create a new data class, rather it defines a new name for an existing type. This can increase the portability of a programs only the typedef statements would have to be changed.
typedef type name;