C Variable Names
In C variable names must follow specific rules:
- Names can only be composed of upper and lower case letters, numbers, and underscores.
- The first character must be a letter (upper or lower case).
- No keywords are allowed as the full name (
intis not allowed but
Data Types in C
The main data types in C are:
Setting Variables in C
Variables in C can be initialized with values at their declaration or have their values set later in the code.
Variable Casting in C
In C a variable can be cast explicitly or implicitly from one data type to another. They can then be used directly or stored in another variable.