Given the declaration of a C-string variable, where SIZE is a defined constant:

char our_string[SIZE];

The C-string variable our_string has been assigned in code not shown

here. For correct C-string variables, the following loop reassigns all

positions of our_string the value 'X', leaving the length the same as

before. Assume this code fragment is embedded in an otherwise complete

and correct program. Answer the questions following this code fragment:

int index = 0;

while (our_string[index] != '\0')

{

our_string[index] = 'X';

index++;

}

a. Explain how this code can destroy the contents of memory beyond the

end of the array.

b. Modify this loop to protect against inadvertently changing memory

beyond the end of the array.