Write a program that tests the following functions. Yes, you must implement the below functions without using any library functions. You may use array and/or pointer notation to define the functions. * char *my_strcpy (char *destination, const char *source) - Copies all characters in the array pointed to by source into the array pointed to by destination. The null character is also copied. The function returns destination.
* char *my_strcat (char *destination, const char *source) - This function appends a copy of the string pointed to by source (including the null character) to the end of the string pointed to by destination. The append overwrites the null character at the end of destination. The string pointed to by destination is returned.
* int my_strcmp (const char *s1, const char *s2) - This function compares the string pointed to by s1 to the string pointed to by s2. If the string pointed to by s1 comes before the string pointed to by s2 in dictionary ordering, then -1 is returned. If the string pointed to by s1 is the same as the string pointed to by s2, then 0 is returned (the compare function is case sensitive). Otherwise 1 is returned.
* int my_strlen (const char *s) - This function returns the length of the string pointed to by s. The computation of length does NOT include the null character.