| Standards / Extensions | C or C++ | Dependencies |
|---|---|---|
XPG4.2 |
both |
#define _XOPEN_SOURCE_EXTENDED 1
#include <unistd.h>
void sync(void);The sync() function causes all information in memory that updates file systems to be scheduled for writing out to all file systems.
The writing, although scheduled, is not necessarily complete upon return from sync().
sync() returns no values.
No errors are defined.