Types of C constants

There are mainly two types of C constants:
1. Primary Constants
2. Secondary Constants
{also see: Constants, Variables and Keywords used in C}

These constants are further categorized as shown below:


Primary Constants
a) Integer Constants {also see: Rules for constructing Integer Constants}
b) Real Constants {also see: Rules for constructing Real Constants & Rules for constructing Real Constants in exponential form}
c) Character Constants {also see: Rules for constructing Character Constants}


Secondary Constants
a) Array
b) Pointer
c) Structure
d) Union
e) Enum etc.