String functions are the functions that are used to perform operations on strings like Comparing strings, finding the length of the string., copying strings and so on. The below listed some of the available library functions for strings:
strstr - strstr Finds first occurrence of a string in another string
strset - strset Sets all character of a string to a given character
strrev - strrev Reverse a string
strten - strlen Finds length of a string
strtwr - strtwr Converts a string to lowercase
strupr - strupr Converts a string to uppercase
strdup - strdup Duplicates a string
strchr - strchr Finds first occurrence of a given character in a string
strrchr- strrchr Finds last occurrence of a given character in a string
strcat - strcat Appends one string at the end of another
strcpy - strcpy Copies a string into another
strcmp - strcmp Compares two strings

