Review for Exam 2

• Read the book, think about the exercises.
• Look through the notes from class
• Go over the homework and other exercises from the book.

Chapter 6 - Data Types

• Viewgraphs: ch06.ppt
• A data type defines a collection of data objects and the operations that can be performed on those objects.
• Primitive data types
  • integers
  • floating point
  • decimal data types
  • Boolean
  • Character types
  • other numeric types: rational, complex, fixed point
• Strings
  • Primitive or structured
  • static or dynamic length and storage
  • Operations: assignment, concatenation, substring, pattern matching
• Strings
  • enumerated types - C syntax
  • subrange types
• Structured data types
  • Array types - homogeneous
    • storage - static, stack-dynamic, fixed heap-dynamic, heap dynamic
    • access formulas
    • operations - indexing, slices (think about how to address successive elements of simple slices)
    • Initialization
  • associative arrays
  • records - heterogeneous collection of elements
    • fields accessed by name
    • operations - assignment, element reference
    • implementation
  • variant records and unions
    • discriminated vs free
• Pointer and reference types
  • operations - assignment and dereferencing
  • explicit vs implicit dereferencing

Chapter 7 - Expressions and Assignments

• viewgraphs: ch07.ppt
• Arithmetic Expressions
  • Precedence
  • Associativity
  • Conditional expressions
  • Operand evaluation order
• Type conversion/coercion
• Relational and boolean expressions
  • true/false values
  • short circuit evaluation
• Assignment
  • implementation issues - return type, operator symbol
  • variable initialization
  • compound and unary assignment operators
  • mixed-mode assignment

Chapter 8 - Statement-level Control Structures

• viewgraphs: ch08.ppt
• Sections 1-4
• Selection
• Iteration
• Unconditional branches