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C Copyright 1981-2007 ECMWF
C
C Licensed under the GNU Lesser General Public License which
C incorporates the terms and conditions of version 3 of the GNU
C General Public License.
C See LICENSE and gpl-3.0.txt for details.
C
INTEGER FUNCTION IAINIT (KPR, KERR)
C
C---->
C**** *IAINIT*
C
C PURPOSE
C _______
C
C Initialise common decks for grid-pt to grid-pt interpolation.
C
C INTERFACE
C _________
C
C IERR = IAINIT (KPR, KERR)
C
C Input parameters
C ________________
C
C KPR - The debug print switch.
C 0 , No debugging output.
C 1 , Produce debugging output.
C
C KERR - The error control flag.
C -ve, No error message. Return error code.
C 0 , Hard failure with error message.
C +ve, Print error message. Return error code.
C
C Output parameters
C ________________
C
C None
C
C Return value
C ____________
C
C The error indicator (INTEGER).
C
C Error and Warning Return Values
C _______________________________
C
C None
C
C Common block usage
C __________________
C
C grfixed.h - The include file contains all the array space
C for grid to grid interpolation.
C
C MILLEN - The array of latitude line lengths for a quasi
C regular Gaussian grid is set.
C
C memreq.h - This file contains the memory request
C definition variables.
C
C MADDR - The base addresses of the currently allocated
C memory segments are set.
C MREQUEST - The sizes of the current memory requests are set.
C
C
C EXTERNALS
C _________
C
C INTLOG - Logs messages.
C
C METHOD
C ______
C
C Initialise common decks for grid-pt to grid-pt interpolation:
C - memory access arrays,
C - quasi regular definition.
C
C REFERENCE
C _________
C
C None
C
C COMMENTS
C ________
C
C None.
C
C AUTHOR
C ______
C
C K. Fielding *ECMWF* Apr 1994
C
C MODIFICATIONS
C _____________
C
C J.D.Chambers ECMWF Aug 1994
C
C----<
C _______________________________________________________
C
C
C* Section 0. Definition of variables.
C _______________________________________________________
C
C* Prefix conventions for variable names
C
C Logical L (but not LP), global or common.
C O, dummy argument
C G, local variable
C LP, parameter.
C Character C, global or common.
C H, dummy argument
C Y (but not YP), local variable
C YP, parameter.
C Integer M and N, global or common.
C K, dummy argument
C I, local variable
C J (but not JP), loop control
C JP, parameter.
C REAL A to F and Q to X, global or common.
C P (but not PP), dummy argument
C Z, local variable
C PP, parameter.
C
C Implicit statement to force declarations
C
IMPLICIT NONE
C
#include "parim.h"
#include "memreq.h"
#include "nifld.common"
#include "nofld.common"
#include "grfixed.h"
C
C Dummy arguments
C
INTEGER KPR, KERR
C
C Local variables
C
INTEGER JSET
C
INTEGER JPROUTINE
C
PARAMETER (JPROUTINE = 21100)
C
C External functions
C
C Transform definition variables that must be preserved
C
C
C _______________________________________________________
C
C
C* Section 1. Initialisation
C _______________________________________________________
C
100 CONTINUE
C
IF (KPR .GE. 1) CALL INTLOG(JP_DEBUG,'IAINIT: Section 1.',JPQUIET)
C
IAINIT = 0
C
IF (KPR .GE. 1) CALL INTLOG(JP_DEBUG,
X 'IAINIT : Grid-pt to grid-pt common decks initialised',JPQUIET)
C
C _______________________________________________________
C
C
C* Section 2. Initialise memory access arrays.
C _______________________________________________________
C
200 CONTINUE
C
IF (KPR .GE. 1) CALL INTLOG(JP_DEBUG,'IAINIT: Section 2.',JPQUIET)
C
DO 210 JSET = 1, JPLEVEL
MREQUEST (JSET) = 0
MADDR (JSET) = 0
210 CONTINUE
C
C _______________________________________________________
C
C
C* Section 3. Initialise quasi regular definition
C _______________________________________________________
C
300 CONTINUE
C
IF (KPR .GE. 1) CALL INTLOG(JP_DEBUG,'IAINIT: Section 3.',JPQUIET)
C
DO 310 JSET = 1, JPLAT
MILLEN (JSET) = 0
310 CONTINUE
C
C _______________________________________________________
C
C
C* Section 9. Return to calling routine. Format statements
C _______________________________________________________
C
900 CONTINUE
C
IF (KPR .GE. 1) CALL INTLOG(JP_DEBUG,'IAINIT: Section 9.',JPQUIET)
C
RETURN
END
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