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isalpha, isalnum and isdigit functions





This video tutorial explains the character related function available in c such as isalpha,isdigit and isalnum functions.

You will learn how to check whether a character is a alphabet or not using isalphabet function, how to check whether a character is a digit or not using isdigit function and also how to check whether a character is a digit or a alphabet using the isalnum function.
Tutorial begins with the syntax of the isalpha, isdigit and isalnum functions and then explains the usage of them with examples in detail.