#include <dos.h> unsigned int _dos_commit(int handle);
This is a direct connection to the MS-DOS commit function call (%ah = 0x68). This function flushes DOS internal file buffers to disk.
Returns 0 if successful or DOS error code on error (and sets errno).
not ANSI, not POSIX
_dos_write(handle, buffer, 1000, &result); _dos_commit(handle); _dos_close(handle);
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