# iploc.f

          INTEGER FUNCTION IPLOC (LOC, SX, IX)
    C***BEGIN PROLOGUE  IPLOC
    ....
    ....
    Warning:   this routine is not intended to be user-callable.
    ....
    ....
    C***SUBSIDIARY
    C***PURPOSE  Subsidiary to SPLP
    C***LIBRARY   SLATEC
    C***TYPE      SINGLE PRECISION (IPLOC-S, IDLOC-D)
    C***KEYWORDS  RELATIVE ADDRESS DETERMINATION FUNCTION, SLATEC
    C***AUTHOR  Hanson, R. J., (SNLA)
    C           Wisniewski, J. A., (SNLA)
    C***DESCRIPTION
    C
    C   Given a "virtual" location,  IPLOC returns the relative working
    C   address of the vector component stored in SX, IX.  Any necessary
    C   page swaps are performed automatically for the user in this
    C   function subprogram.
    C
    C   LOC       is the "virtual" address of the data to be retrieved.
    C   SX ,IX    represent the matrix where the data is stored.
    C
    C***SEE ALSO  SPLP
    C***ROUTINES CALLED  PRWPGE, XERMSG
    C***REVISION HISTORY  (YYMMDD)
    C   810306  DATE WRITTEN
    C   890531  Changed all specific intrinsics to generic.  (WRB)
    C   890606  Restructured to match double precision version.  (WRB)
    C   890606  REVISION DATE from Version 3.2
    C   891214  Prologue converted to Version 4.0 format.  (BAB)
    C   900315  CALLs to XERROR changed to CALLs to XERMSG.  (THJ)
    C   910731  Added code to set IPLOC to 0 if LOC is non-positive.  (WRB)
    C***END PROLOGUE  IPLOC