File Modes

note

These file modes are used by fopen.

Mode	Description
io_read	Reads from the file.
io_write	Write in the file, or create the file if it does not exist. Erases all existing contents.
io_readwrite	Reads the file or creates it if it doesn't already exist.
io_append	Appends (adds) to file, write-only. If the file does not exist, it is created.