Datņu ievades/izvades funkcijas
Reads a record from a relative file, or a sequence of bytes from a binary file, into a variable.
Reads data from an open sequential file.
Reads strings from a sequential file into a variable.
Writes a record to a relative file or a sequence of bytes to a binary file.
Writes data to a sequential file.
Returns the current position in an open file.
Returns the position for the next writing or reading in a file that was opened with the open statement.
Determines if the file pointer has reached the end of a file.
Returns the size of an open file in bytes.