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|
#include "nfconfig.inc"
!----- Routines to put/get single data items of a variety of data types ------
! Replacement for fort-var1io.c
! Written by: Richard Weed, Ph.D
! Center for Advanced Vehicular Systems
! Mississippi State University
! rweed@cavs.msstate.edu
! License (and other Lawyer Language)
! This software is released under the Apache 2.0 Open Source License. The
! full text of the License can be viewed at :
!
! http:www.apache.org/licenses/LICENSE-2.0.html
!
! The author grants to the University Corporation for Atmospheric Research
! (UCAR), Boulder, CO, USA the right to revise and extend the software
! without restriction. However, the author retains all copyrights and
! intellectual property rights explicitly stated in or implied by the
! Apache license
! Version 1.: Sept. 2005 - Initial Cray X1 version
! Version 2.: May 2006 - Updated to support g95
! Updated to pass ndex as C_PTR variable
! Version 3.: April 2009 - Updated for netCDF 4.0.1
! Version 4.: April 2010 - Updated for netCDF 4.1.1
! Added preprocessor test for int and real types
! Version 5.: Jan. 2016 - Replace automatic array for cndex with allocatable
! array and general code cleanup
!--------------------------------- nf_put_var1_text ------------------------
Function nf_put_var1_text(ncid, varid, ndex, chval) RESULT(status)
! Write out a single character variable to location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Character(LEN=1), Intent(IN) :: chval
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
cstatus = nc_put_var1_text(cncid, cvarid, cndexptr, chval)
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_put_var1_text
!--------------------------------- nf_put_var1_int1 ------------------------
Function nf_put_var1_int1(ncid, varid, ndex, ival) RESULT(status)
! Write out a 8 bit integer variable to location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Integer(NFINT1), Intent(IN) :: ival
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer(CINT1) :: cival
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
If (C_SIGNED_CHAR < 0) Then ! schar not supported by processor exit
status = NC_EBADTYPE
RETURN
EndIf
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cival = ival
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_INT1_IS_C_SIGNED_CHAR
cstatus = nc_put_var1_schar(cncid, cvarid, cndexptr, cival)
#elif NF_INT1_IS_C_SHORT
cstatus = nc_put_var1_short(cncid, cvarid, cndexptr, cival)
#elif NF_INT1_IS_C_INT
cstatus = nc_put_var1_int(cncid, cvarid, cndexptr, cival)
#elif NF_INT1_IS_C_LONG
cstatus = nc_put_var1_long(cncid, cvarid, cndexptr, cival)
#endif
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_put_var1_int1
!--------------------------------- nf_put_var1_int2 ------------------------
Function nf_put_var1_int2(ncid, varid, ndex, ival) RESULT(status)
! Write out a 16 bit integer variable to location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Integer(NFINT2), Intent(IN) :: ival
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer(CINT2) :: cival
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
If (C_SHORT < 0) Then ! short not supported by processor
status = NC_EBADTYPE
RETURN
EndIf
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cival = ival
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_INT2_IS_C_SHORT
cstatus = nc_put_var1_short(cncid, cvarid, cndexptr, cival)
#elif NF_INT2_IS_C_INT
cstatus = nc_put_var1_int(cncid, cvarid, cndexptr, cival)
#elif NF_INT2_IS_C_LONG
cstatus = nc_put_var1_long(cncid, cvarid, cndexptr, cival)
#endif
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_put_var1_int2
!--------------------------------- nf_put_var1_int -------------------------
Function nf_put_var1_int(ncid, varid, ndex, ival) RESULT(status)
! Write out a default integer variable to location vector ndex to dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Integer(NFINT), Intent(IN) :: ival
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer(CINT) :: cival
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cival = ival
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_INT_IS_C_INT
cstatus = nc_put_var1_int(cncid, cvarid, cndexptr, cival)
#elif NF_INT_IS_C_LONG
cstatus = nc_put_var1_long(cncid, cvarid, cndexptr, cival)
#endif
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_put_var1_int
!--------------------------------- nf_put_var1_real ------------------------
Function nf_put_var1_real(ncid, varid, ndex, rval) RESULT(status)
! Write out a 32 bit real variable to location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Real(NFREAL), Intent(IN) :: rval
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_REAL_IS_C_DOUBLE
cstatus = nc_put_var1_double(cncid, cvarid, cndexptr, rval)
#else
cstatus = nc_put_var1_float(cncid, cvarid, cndexptr, rval)
#endif
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_put_var1_real
!--------------------------------- nf_put_var1_double ----------------------
Function nf_put_var1_double(ncid, varid, ndex, dval) RESULT(status)
! Write out a 64 bit real variable to location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Real(RK8), Intent(IN) :: dval
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims) ! get varid dimension
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
cstatus = nc_put_var1_double(cncid, cvarid, cndexptr, dval)
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_put_var1_double
!--------------------------------- nf_put_var1 ------------------------
Function nf_put_var1(ncid, varid, ndex, values) RESULT(status)
! Write out values of any type. We use a C interop character string to
! hold values. Therefore, an explicit interface to nf_put_var1 should
! not be defined in the calling program to avoid rigid TKR conflict
! Just declare it external
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Character(KIND=C_CHAR), Intent(IN), TARGET :: values(*)
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr, cvaluesptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
Else
ALLOCATE(cndex(1))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
cvaluesptr = C_LOC(values)
cstatus = nc_put_var1(cncid, cvarid, cndexptr, cvaluesptr)
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_put_var1
!--------------------------------- nf_get_var1_text ------------------------
Function nf_get_var1_text(ncid, varid, ndex, chval) RESULT(status)
! Read in a single character variable from location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Character(LEN=1), Intent(OUT) :: chval
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
chval = ' '
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) -1
cndexptr = C_LOC(cndex)
EndIf
EndIf
cstatus = nc_get_var1_text(cncid, cvarid, cndexptr, chval)
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_get_var1_text
!--------------------------------- nf_get_var1_int1 ------------------------
Function nf_get_var1_int1(ncid, varid, ndex, ival) RESULT(status)
! Read in a 8 bit integer variable from location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Integer(NFINT1), Intent(OUT) :: ival
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer(CINT1) :: cival
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
If (C_SIGNED_CHAR < 0) Then ! schar not supported by processor exit
status = NC_EBADTYPE
RETURN
EndIf
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_INT1_IS_C_SIGNED_CHAR
cstatus = nc_get_var1_schar(cncid, cvarid, cndexptr, cival)
#elif NF_INT1_IS_C_SHORT
cstatus = nc_get_var1_short(cncid, cvarid, cndexptr, cival)
#elif NF_INT1_IS_C_INT
cstatus = nc_get_var1_int(cncid, cvarid, cndexptr, cival)
#elif NF_INT1_IS_C_LONG
cstatus = nc_get_var1_long(cncid, cvarid, cndexptr, cival)
#endif
ival = cival
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_get_var1_int1
!--------------------------------- nf_get_var1_int2 ------------------------
Function nf_get_var1_int2(ncid, varid, ndex, ival) RESULT(status)
! Read in a 16 bit integer variable from location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Integer(NFINT2), Intent(OUT) :: ival
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer(CINT2) :: cival
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
If (C_SHORT < 0) Then ! short not supported by processor
status = NC_EBADTYPE
RETURN
EndIf
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_INT2_IS_C_SHORT
cstatus = nc_get_var1_short(cncid, cvarid, cndexptr, cival)
#elif NF_INT2_IS_C_INT
cstatus = nc_get_var1_int(cncid, cvarid, cndexptr, cival)
#elif NF_INT2_IS_C_LONG
cstatus = nc_get_var1_long(cncid, cvarid, cndexptr, cival)
#endif
ival = cival
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_get_var1_int2
!--------------------------------- nf_get_var1_int -------------------------
Function nf_get_var1_int(ncid, varid, ndex, ival) RESULT(status)
! Read in 32 bit integer variable from location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Integer, Intent(OUT) :: ival
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer(CINT) :: cival
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_INT_IS_C_INT
cstatus = nc_get_var1_int(cncid, cvarid, cndexptr, cival)
#elif NF_INT_IS_C_LONG
cstatus = nc_get_var1_long(cncid, cvarid, cndexptr, cival)
#endif
ival = cival
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_get_var1_int
!--------------------------------- nf_get_var1_real ------------------------
Function nf_get_var1_real(ncid, varid, ndex, rval) RESULT(status)
! Read in a 32 bit real variable to location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Real(NFREAL), Intent(OUT) :: rval
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims)
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
#if NF_REAL_IS_C_DOUBLE
cstatus = nc_get_var1_double(cncid, cvarid, cndexptr, rval)
#else
cstatus = nc_get_var1_float(cncid, cvarid, cndexptr, rval)
#endif
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_get_var1_real
!--------------------------------- nf_get_var1_double ----------------------
Function nf_get_var1_double(ncid, varid, ndex, dval) RESULT(status)
! Read in a 64 bit real variable to location vector ndex in dataset
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Real(RK8), Intent(OUT) :: dval
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims) ! get varid dimension
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
cstatus = nc_get_var1_double(cncid, cvarid, cndexptr, dval)
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_get_var1_double
!--------------------------------- nf_get_var1 -------------------------------
Function nf_get_var1(ncid, varid, ndex, values) RESULT(status)
! Read in values of any type. We use a C interop character string to
! hold values. Therefore, an explicit interface to nf_get_var1 should
! not be defined in the calling program to avoid rigid TKR conflict
! Just declare it external
USE netcdf_nc_interfaces
Implicit NONE
Integer, Intent(IN) :: ncid, varid
Integer, Intent(IN) :: ndex(*)
Character(KIND=C_CHAR), Intent(OUT), TARGET :: values(*)
Integer :: status
Integer(C_INT) :: cncid, cvarid, cndims, cstat1, cstatus
Type(C_PTR) :: cndexptr, cvaluesptr
Integer :: ndims
Integer(C_SIZE_T), ALLOCATABLE, TARGET :: cndex(:)
cncid = ncid
cvarid = varid - 1 ! Subtract one to get C varid
cstat1 = nc_inq_varndims(cncid, cvarid, cndims) ! get varid dimension
cndexptr = C_NULL_PTR
ndims = cndims
If (cstat1 == NC_NOERR) Then
If (ndims > 0) Then ! reverse array order and subtract 1 to get C index
ALLOCATE(cndex(ndims))
cndex(1:ndims) = ndex(ndims:1:-1) - 1
cndexptr = C_LOC(cndex)
EndIf
EndIf
cstatus = nc_get_var1(cncid, cvarid, cndexptr, values)
status = cstatus
! Make sure there are no dangling pointers or allocated arrays
cndexptr = C_NULL_PTR
If (ALLOCATED(cndex)) DEALLOCATE(cndex)
End Function nf_get_var1
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