In laptop science, an integer is a complete quantity, versus a fraction. Integers could be both optimistic or adverse. Within the C programming language, integers are represented utilizing the int knowledge sort. The int knowledge sort can retailer integers within the vary of -2,147,483,648 to 2,147,483,647.
There are a number of methods to examine if a quantity is an integer in C. A technique is to make use of the isdigit() perform. The isdigit() perform returns a non-zero worth if the character handed to it’s a digit, and 0 in any other case. This perform can be utilized to examine if a string of characters represents an integer.