Introduction to Debugging Techniques in Visual C 6'0

1
Introduction to Debugging Techniques in Visual
C 6.0

• Speaker Yao-Ting Huang
• Advisor Kun-Mao Chao

National Taiwan University Department of Computer
Science Information Engineering Algorithms and
Computational Biology Lab.
2
How to Reduce Bugs in Your Program

• Never write a program at midnight
• Thinking more before writing your program
• Design your algorithm to solve the problem
• Think of the programming flow
• Your program is better to be modular and
  well-organized.
• Choosing a suitable IDE for you to write a
  program
• Tracing programs written by experienced
  programmers

3
What If You Encounter a Bug

• The time of debugging depends on
• the structure of your program,
• the IDE you choose,
• and the programming experience.
• Step-by-step tracing the execution of the
  program.
• Only suitable for small-scaled programs.
• Toggling breaking points in possible erroneous
  lines of code
• Most commonly used approach to debug all kinds of
  programs.
• Reducing the code size by marking part of the
  code as comments.

4
About Homework 1

• The grading depends on how many efforts you spend
  on it
• You can simply revise the given
  miles-to-kilometers conversion program.
• You can use the UI components in VC6.0 to build a
  typical Win32 application (e.g., drawing a
  thermometer).
• You can create additional functionalities (e.g.,
  from degrees Celsius to degrees Fahrenheit).
• The demo of your Homework 1 is at next Thursday
  here.
• Please bring your source code and execution file.

5
Outlines of the Lecture Today

• Create, compile, and execute a program in Visual
  C 6.0
• Debugging a program in Visual C 6.0