* In any case, \a num_bytes contains the number of bytes that have been
* successfully read from \a fd (zero if the first readv() call failed with
* EAGAIN). Note that even if the function returns negative, some data might
- * have been read before the error occured. In this case \a num_bytes is
+ * have been read before the error occurred. In this case \a num_bytes is
* positive.
*
* \sa \ref write_nonblock(), read(2), readv(2).