Variables/Identifiers in C Language
A variable is nothing but a name given to a storage area that our programs can manipulate.
The name of a variable can be composed of letters, digits, and the underscore character. It must begin with either a letter or an underscore. Upper and lowercase letters are distinct because C is case-sensitive. Based on the basic types explained in previous chapter, there will be the following basic variable types:
|char||Typically a single octet(one byte). This is an integer type.|
|int||The most natural size of integer for the machine.|
|float||A single-precision floating point value.|
|double||A double-precision floating point value.|
|void||Represents the absence of type.|