Variable Names

C Variable Names

Every C variable must be distinguished by a unique name.

These distinctive labels are referred to as identifiers.

Identifiers can range from brief names (such as x and y) to more descriptive ones (like age, sum, and totalVolume).

Note: It’s advisable to employ descriptive names to ensure the clarity and maintainability of your code.

Example

The general guidelines for naming variables are:

• Names may consist of letters, digits, and underscores.
• Names must commence with a letter or an underscore (_).
• Names are case-sensitive, meaning “myVar” and “myvar” represent distinct variables.
• Names cannot include whitespaces or special characters like !, #, %, etc.
• Reserved words ( e.g., int ) cannot serve as names.