Use the Save Actions preference panel to configure actions performed by C/C++ editor while saving a file. Click Window > Preferences > C/C++ > Editor > Save Actions to make changes.
Remove trailing whitespace | While saving a file, C/C++ editor will remove spaces and tab characters from the end of edited or all lines. |
Ensure newline at the end of file | While saving a file, C/C++ editor will insert a newline at the end of the last line, if the last line does not have it already. |