1: Debug statements cause clogging in your code. Two debug statements clog up the output of your application. Three debug statements must be deleted once you're finished with them, making them non-reusable. 4 Debug statements necessitate changes to your code to add and delete them, which may cause new errors. 5 Debug statements are expensive in terms of computing time. Each one requires that the program stop all it's other activities (such as calculating costs or printing receipts) so that it can examine specific parts of memory.
The only acceptable use for a debug statement is to detect and correct programming errors.
You should remove all debug statements from your code before submitting it. Even if you think your code is perfect, others will make mistakes when trying to understand it. If they encounter a bug, they won't know how to fix it unless they have full access to all debug messages.
The practice of eliminating defects from computer programs is known as debugging. Debugging occurs when you question why your software isn't generating the desired outcomes. The first step is to ensure that your C/C++ code compiles and links correctly. Once you have confirmed that these steps are successful, you can start adding debug statements to your code. A debug statement is any statement or expression used by programmers to indicate possible problems with their code. When writing code, it is important to include such debug statements so you can identify any issues early on.
There are two types of debug statements: assertions and exceptions. An assertion is a conditional command that checks for a condition and throws an exception if the condition isn't met. For example, consider the following code segment which uses an assertion to check whether the number 5 is evenly divisible by 3:
Assert(num % 3 == 0);
If the assertion fails, the program will exit immediately without running the rest of the instructions. This is useful when you want to report a problem with your code without allowing the program to continue.
Exceptions are commands that halt execution of your program and transfer control to another location within the program. For example, you might want to display a message on the screen indicating that something went wrong while parsing the input file.
The significance of debugging Debugging is a critical step in identifying why an operating system, application, or software is acting strangely. Even if developers adhere to the same coding standards, it is quite likely that a new software application may have defects. When this happens, they need to be able to identify what is wrong quickly so they can fix it. For this reason, debugging is necessary in programming.
"If debugging is the process of eradicating flaws, then programming must be the process of introducing them," Dijkstra stated. ... The 7 Most Common Types of Programming Errors and How to Avoid Them
7 Steps to Efficient and Effective Debug
Debugging is the deliberate process of locating and minimizing the amount of flaws (or faults) in a computer program, allowing it to function as intended. During execution, the software produces inaccurate output (or "crashes"). This lecture will look at how to diagnose a run-time issue in C code carefully.
Debugging allows you to execute a program interactively while inspecting the source code and variables. A breakpoint in the source code marks when the program's execution should halt while debugging. You can study variables, alter their contents, and so on once the program has been paused. The Java Debugger (jdb) is used for debugging Java programs.
Debugging allows the programmer to repair logic problems in a program in development before it gets into production. It also allows the programmer to identify errors that might not be visible when testing the program but could cause it to malfunction later.
There are two ways to debug software: local and remote. Local debugging uses tools available on your computer while remote debugging uses tools located on another computer. Remote debugging is usually done over a network connection or using a service such as Google Debugger.
When you run a program, many things can go wrong during execution. If this happens, the software has failed and must be fixed before it can be used again. When something goes wrong with a program, it is said to have "crashed." After a crash has been identified, the developer needs to know what happened so it can be fixed. This information is called "debugging data." There are two ways to get this data: by setting up breakpoints and watching variables or by using logging functions.
A breakpoint is a point in code where the program execution is halted and data about the failure is saved for future reference. Breakpoints can only be set in source code files; they cannot be set in compiled executables.