Write data to NAND flash file system

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Write data to NAND flash file system

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I am using boost::filesystem to write / remove files to NAND flash
file system where it writes by pages, the system can cache and pack
data upon write back to avoid segmentation if fsync(), fdatasync(),
O_SYNC or a sync mounted filesystem are not used to force write.

Will the boost::filesystem::ofstream and operator<< involve any of
sync call? Which IO library is not using sync call?

Thank you.

Kind regards,

- jupiter

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