int rfio_write (int s, const void *ptr, int size);
DESCRIPTION
rfio_write
stores in a file the bytes starting at
ptr,
a pointer to the memory location in which resides the information,
size
bytes, using the descriptor
s
generated by a previous
rfio_open.
RETURN VALUE
This routine returns -1 if the operation failed or the number of items actually writen. In case of failure,
serrno
is set appropriately.