id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
523	Remove redundant variables	Ian Culverwell	Ian Culverwell	"The nagfor compiler provides lots of useful information about redundant variables, like
{{{
NAG Fortran Compiler Release 5.2(721)
Warning: ../qc/ropp_qc_ion_bangle.f90, line 199: Unused dummy variable DIAG
         detected at ROPP_QC_ION_BANGLE@<end-of-statement>
}}}

Later versions provide more comprehensive checking, and include things like
{{{
NAG Fortran Compiler Release 5.3.1(907)
Questionable: ../qc/ropp_qc_omb.f90, line 135: Variable DUMMY set but never referenced
}}}

We should probably reduce the number of unused variable if possible  Caution is required, however.  For example, nagfor5.3 says
{{{
Warning: ../ropp/ropp_io_read_ncdf_get.f90, line 3465: Unused dummy variable FILE
Warning: ../ropp/ropp_io_read_ncdf_get.f90, line 3465: Unused local variable LDUM
Warning: ../ropp/ropp_io_read_ncdf_get.f90, line 3611: Unused dummy variable LDUMMY
}}}
The last of these is needed to let the operator overloading differentiate between '''ropp_io_read_ncdf_get_eumdata''' and '''ropp_io_read_ncdf_get_otherdata'''.

"	enhancement	closed	normal	9.1	ROPP (all)	9.0	fixed