Compile Comment Form For Free

In C/C++ there are two types of comments : Single line comment. Multi-line comment.

There are two types of comments in C: 1) A comment that starts with a slash asterisk / and finishes with an asterisk slash / and you can place it anywhere in your code, on the same line or several lines.

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.

When breaking the source code into tokens, the lexical analyzer detects comments that matches correct syntax ( // or / / ) and ignores them until a newline or / . The comments basically become a whitespace, and they are effectively ignored from the lexical analyzer.

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.

Often cited as one of the most useful and least used programming conventions, a comment is a text note added to source code to provide explanatory information, usually about the function of the code. Comments are usually helpful to someone maintaining or enhancing your code when you are no longer around to answer

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.