Constants

There are some values which do not change during the execution of the program. These values are called constants. Constants are of fixed value that remain unchanged during the execution of a program, and are …

A character constant consists of a single digit or a single special symbol enclosed within a pair of single inverted commas. The maximum length of a character constant can be 1 character. e.g. –> ‘a’, …

An integer constant refers to a sequence of digits. It could be either positive or negative. and must have at least one digit. It mustn’t have a decimal point. No commas or blank are allowed …

Real constants are often called Floating Point constants. It has three parts: 1. A sign (+ or -) preceding the number portion (optional). 2. A number portion (representing the base). 3. An exponent portion following …

A logical constant can have either of two values either true or false. In C a non-zero value is always treated as true whereas zero is treated as false. The logical constants are very useful …