| Value | Meaning |
|---|---|
| read1 | Opens the file for read operations. |
| write2 | Opens the file for write operations. Create it if the file does not exist and truncate if it exists. |
| readWrite3 | Opens the file for read and write operations. Does not truncate the file. |
| writeRead7 | Opens the file for read and write operations. Create it if the file does not exist and truncate if it exists. |