COMPROG:UNIT#4:STRING

is nothing but an array of characters ended with null chatacer ('\0'). This null character means the end of the string.

is a sequence or an array of characters.

compare memory blocks

string compare

string compare using locale-specific collating sequence

bounded string compare

transform locale-specific string

it counts number of characters available in a string

it copies contents of one string to another

it concatenates two give strings