May 2017
Intermediate to advanced
590 pages
17h 18m
English
Content preview from Modern C++ Programming Cookbook
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Removing content from a file
Operations such as copying, renaming, moving, or deleting files are directly provided by the filesystem library. However, when it comes to removing content from a file, you must perform explicit actions. Regardless of whether you need to do this for a text or binary files, you must implement the following pattern:
- Create a temporary file.
- Copy only the content that you want from the original file to the temporary file.
- Delete the original file.
- Rename/move the temporary file to the name/location of the original file.
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