COMP1721 - Higher Computing 1B

1. What tokens would be produced by the Cavy lexical analyzer given this input:

           int answer;
           answer = 42;
           put_i(i);
   

2. A commonly used measure of program size is the number of semi-identifiers it contains. Words in strings, comments, should not be counted.

   Write a program which prints the number of identifiers in a specified Cavy program.

   For example:

   ---

   % ./a.out /home/cs1721/public_html/05s2/cavy/examples/3/selection_sort.c	
   29
   

   ---

3. We need to keep an int value associated with a name (string). Write a function which given a name (char *) returns a pointer (int *) to the int variable associated with that name.

   If the name has not been previously associated with an int variable, an int variable should be created (malloc'ed) and initialized to zero.