Computer Science 433
Programming Languages

Fall 2014, The College of Saint Rose

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Agenda

• Announcements
  • Program/Problem Set 8: Datatypes, Expressions and Assignments [HTML] [PDF] due tonight
  • Language project progress reports due Monday
• Lecture 20 assignment recap
• Subprograms
• Program/Problem Set 9: Control and Subprograms [HTML] [PDF] out

Lecture 21 Assignment

Due at the start of class, Monday, November 17.

Please submit answers to these questions in Submission Box under "LA21" or in hard copy by the start of our next class. We will discuss these questions at the start of class, so no late submissions are accepted. Please be sure that your name is clearly indicated in all submissions.

The readings for next class are Sebesta Chapter 9.

• Sebesta Problem Set Question 1, p. 438. (5 points)
• Sebesta Problem Set Question 5, p. 438. (3 points)

Terminology

• subprogram/procedure/subroutine/function/method
• subprogram definition
• subprogram call
• subprogram header/specification/interface
• type, name, parameters, body of a subprogram
• parameter profile/signature
• protocol
• subprogram declaration
• formal parameter/actual parameter
• positional parameters/keyword parameters
• default parameters
• variadic functions
• in/out/inout modes
• subprogram linkage
• activation record
• frame pointer
• dynamic link address
• call by value
• access path
• call by reference
• call by result

Examples

• cppdefault
• varargs
• callbyref

Links

• F90 Keyword arguments and default arguments
• Wikipedia article "Variadic function"
• Using the Parameter Array