Assignment No. 05 Semester Spring 2012 Compiler Construction CS606

	Assignment No. 05 Semester Spring 2012 Compiler Construction CS606	Total Marks: 20 Due Date: 03/07/2012
Instructions: It should be clear that your assignment will not get any credit (zero marks will be awarded) if: o        The assignment is submitted after due date. o        The submitted assignment does not open or file corrupt. o        The assignment is copied (from other student or copy from handouts or internet). o        Student ID is not mentioned in the assignment File or name of file is other than student ID. o       It is in some format other than .doc (MS Word Document). For any query about the assignment, contact at cs606@vu.edu.pk
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Question                                                                                                                                    Marks 20 You are required to write syntax-directed definition to determine the type of each sub-expression by considering the following grammar. The given grammar can generate expressions formed by applying “+” to integer and floating point constants. Also consider that when two integers are added, the result is integer; otherwise, it is a float.  Assign each symbol an attribute “type” also. S ® S + S | X X ® n . n | n