CMSC 104, Sections 3, 4, & 5, Fall 2012

Exam 2 Topic List

• Basic review of topics from first part of course
• The C compiler
  • The 3 stages of the compilation process:
    preprocessing, compilation, linking
  • How to run the compiler
  • What the "-Wall" and the "-o" options do
• Reserved keywords: what the concept is
  (not specific ones, other than ones we've used, e.g.: "while", "return")
• Identifiers
  • Legal vs. following conventions
• Variables in C
  • Types
    • Declaring type of variable
    • Some basic types: float, int, char, double
• Structure of a basic C program
• CMSC 104 programming standards
• Preprocessor directives
  • #include, #define
• Arithmetic operators
  • *, /, +, -, %
  • Type promotion in expressions
  • Precedence and associativity
• Relational operators
  • <, >, ==, !=, etc.
• if/else-if/else
• Boolean expressions:
  • Logical opeators (||, &&, !)
  • "true" and "false" in C
  • treatment of numbers as true/false
  • treatment of true/false as numbers
• assignment operators
  • +=, -=, etc.
  • auto-increment, auto-decrement, post- and pre- (x++, ++x, x--, --x)
• Input, output
  • printf(), formatted output
  • scanf(), reading int, floats, strings, chars
  • getchar()
• Loops
  • while loop
  • for loop
    • syntax of for loop
    • when do the 3 parts get done?
  • do-while
  • How to decide which loop type to use
  • break and continue in loops
  • Sentinel values
  • priming reads
  • Counter-controlled loops vs. event-controlled loops
• switch statements
• Incremental programming