C String – strlen() function1 min read

strlen() function in C is used to calculate the length of the given string. It counts the number of characters present in a String excluding the null character ‘\0‘.

The strlen() function is defined in the header file string.h. It takes one argument that is the string name and written as follows:

strlen(string_name);


C Program for strlen() function

Output:

Length of a String str: 11


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