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:
Type | Description |
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. |