Function:     OUTSIDEPTR

Purpose:      Indicates whether inside or outside subframe defined by
              INITPTR.

File:         initptr.c

Author:       K.G. Begeman

Use:          LOGICAL OUTSIDEPTR( IP,   Output   INTEGER
                                  NP )  Output   INTEGER

              OUTSIDEPTR  Returns .TRUE. when still some data outside
                          subframe in readbuffer, else .FALSE.
              IP          If OUTSIDEPTR .eq. .TRUE., offset pointer from
                          start of readbuffer to where first data value
                          outside subframe can be found.
              NP          If OUTSIDEPTR .eq. .TRUE., number of data values
                          outside subframe in readbuffer starting at IP.

Notes:        When OUTSIDEPTR returns .FALSE. it reinitializes itself
              to the state just after the call to INITPTR. So it can
              be used again to do a different operation on data outside
              the sub frame.

Related Docs: initptr.dc2, insideptr.dc2

Updates:      Nov 15, 1988: KGB, Creation date.
              Feb 27, 1990: KGB, Reinitialization implemented.