Data types

Data types

1. user defined type

   • structure
   • union
   • class
   • enumeration
     • helps users in creating a list of identifiers
     • also called as symbolic numeric constants of type in
   • helps in improving readability of the program
   • enables a programmer to invent own data type and define values

2. built in type

   • integral
     • int
     • char
   • void
     • it declares generic pointers
     • it indicates that the fn does not return a value
   • floating type
     • float
     • double
   • fundamental or basic data type
   • predefined by the compiler

3. derived type

   • array
   • function
   • pointer
   • reference
   • they are built from the basic integer and floating type or user defined data type