Newline at end of file

Many Linux tools and compilers that process text files require the text file to end with a newline. This is simply because they are designed to process a series of lines, each ending with a newline. That means, the last line of the file should also end in a newline.

If the file does not end with a newline, then C++ compilers and other tools complain with errors such as No newline at end of file.

How do you end up with a file that does not end in newline? If you use tools that are written for other platforms like Windows or are cross-platform, those might not follow the rule of ending the last line with a newline. The latest culprit who I found doing this mistake was the Visual Studio Code editor. Editors like Vim, which come from a Unix heritage, just do not allow you to save without a newline.

In Visual Studio Code, I set the files.insertFinalNewline option to true to fix this mistake.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.