Important Points about strlen()
The following points should be kept in mind while using strlen():
- strlen() does not count the NULL character ‘\0’.
- The time complexity of strlen() is O(n), where n is the number of characters in the string.
- Its return type is size_t ( which is generally unsigned int ).
strlen() function in c
The strlen() function in C calculates the length of a given string. The strlen() function is defined in string.h header file. It doesn’t count the null character ‘\0’.