Table of Contents
What effects do comments have on a program?
In computer programming, a comment is a programmer-readable explanation or annotation in the source code of a computer program. They are added with the purpose of making the source code easier for humans to understand, and are generally ignored by compilers and interpreters.
What is the purpose of adding comments in AC program?
Comments provide clarity to the C source code allowing others to better understand what the code was intended to accomplish and greatly helping in debugging the code. Comments are especially important in large projects containing hundreds or thousands of lines of source code or in projects in which many contributors …
Does comments get compiled?
Comments are normally stripped out during preprocessing, so the compiler itself never sees them at all. They can (and normally do) slow compilation a little though–the preprocessor has to read through the entire comment to find its end (so subsequent code will be passed through to the compiler.
Why comments are important in coding?
Comments are text notes added to the program to provide explanatory information about the source code. They are used in a programming language to document the program and remind programmers of what tricky things they just did with the code and also helps the later generation for understanding and maintenance of code.
Which of the following comments are used in C programming?
Answer: A comment starts with a slash asterisk /* and ends with a asterisk slash */ and can be anywhere in your program. Comments can span several lines within your C program. Comments are typically added directly above the related C source code.
How does C language work?
C is what’s referred to as a compiled language, meaning you have to use a compiler to turn the code into an executable file before you can run it. The code is written into one or more text files, which you can open, read and edit in any text editor, such as Notepad in Windows, TextEdit on a Mac, and gedit in Linux.
Can comments be nested in C?
Because C’s comments start and end with specific characters, you cannot put one comment inside another. This is known as nesting. Nested comments can cause errors in your code, so while you’re programming, keep track of where comments start and end.
Do comments increase compile time?
Yes, each comment that you write will make the compilation slower, because the compiler has to read more text.
How do you comment effectively in code?
13 Tips to Comment Your Code
- Comment each level. Comment each code block, using a uniform approach for each level.
- Use paragraph comments.
- Align comments in consecutive lines.
- Don’t insult the reader’s intelligence.
- Be polite.
- Get to the point.
- Use a consistent style.
- Use special tags for internal use.
How is C program compiled and executed?
Linker takes the object code generated by an assembler, as input. Loader takes executable module generated by a linker as input. Linker combines all the object modules of a source code to generate an executable module. Loader allocates the addresses to an executable module in main memory for execution.