CSC 2210 Sample Code

Procedural C++ Examples

Some of the examples in this folder will build with older versions of C++, but in many cases you will need C++14 or later.

• ave.cpp: print the average of a list of integers
  ave1000.cpp: same, but using arrays (illustrating how they are passed)
• round_error.cpp: illustrates why == on floats is a bad idea
• simple_time.cpp: illustrates simple classes (along with cassert)
• occurrences.cpp: count number of times a character appears input. If build to a.exe, then

          a.exe < occurrences.cpp
  

  counts 17 semicolons, and

          a.exe _ < occurrences.cpp
  

  counts 5 underscores.
• increasing-numbers.cpp: illustrates writing an eof-controlled loop with limits
  • increasing-numbers-v2.cpp: Same, but using functions.
• distinct1000.cpp: count number of distinct values in the input.
• countvowels.cpp: count the number of vowels; illustrating reading input by characters (and including code to read from a file as well as standard input). This is the C++ version of countvowels.rb.
• ave.h, ave.cpp, printave.cpp: illustrating separate compilation and reference parameters
• Simple pointer code: illustrating pointers to basic types
• 2darray.cpp: illustrates two-dimensional arrays (really, tables) using both plain-old arrays (int a[cols][rows];) and vectors (vector<vector<int>>).

Class-based C++ Examples

• todo.cpp: simple todo list using fixed-size arrays and strings.
• phonebook: A class with the interface separated from the implementation.
• Account balance: computing account balances, illustrating definitions distributed over multiple files with operator overloading.
• Todo lists with pointers: a more extensible version of ToDo lists, this time using pointers so each ToDo item has identity. This version also illustrates documenting classes and methods in a reasonable way.
• simple_vector.h: Simple vector code
• Time example: illustrates simple inheritance
• alg-examp.cpp: illustrate algorithm code
• slist.cpp: Simply Linked List
• rwh_string.cpp: simple implementation of arbitrary-length strings
• list_iterator.cpp: illustrates iterating over a list
• repeated_words.cpp: illustrates using std::set
• Train example: illustrates multiple classes with a class hierarchy

C Examples

• RPN Calculator
• Average Example, C version: a rewrite of ave.cpp
• Average of 1000 doubles, C version: a rewrite of ave1000.cpp, but this version prompts for inputs and computes the average of doubles
• array.c: illustrates properties of arrays
• points0.c, points.c: structs in C using two different styles
• messed_up.c: really odd code...
• hello.c: yup
  • See also: MysteryCode.java

Java Examples

• Display.java: illustrates reading from standard input and writing to standard output
• MysteryCode.java: illustrates that Java programs can be obfuscated as well

Assembly Examples

• simp_asm_fun_call.cpp: Windows GAS code illustrating calling a function with embedded assembly
• simp_mac_asm_fun_call.cpp: the Intel-based Mac version of the above embedded assembly
• counting_bits.cpp: C++ with assembly code to count the number of bits set in the 2s-complement representation of an integer; the pure assembly version (which assumes data is in %ebx) is in counting_bits.asm.