Some relevant changes:
Fixed miswriting of netCDF header when exiting define
mode. Because the header was always written correctly
later, this was only a problem if there was another
reader of the netCDF file.
Fixed explicit synchronizing between netCDF writer and
readers via the nc_sync(), nf_sync(), and ncsync()
functions.
Fixed a number of bugs related to attempts to support
shrinking the header in netCDF files when attributes
are rewritten or deleted. Also fixed the problem that
nc__endef() did not work as intended in reserving
extra space in the file header, since the extra space
would be compacted again on calling nc_close().
Fixed the "redef bug" that occurred when nc_enddef()
or nf_enddef() is called after nc_redef() or
nf_redef(), the file is growing such that the new
beginning of a record variable is in the next "chunk",
and the size of at least one record variable exceeds
the chunk size (see netcdf.3 man page for a
description of this tuning parameter and how to set
it). This bug resulted in corruption of some values
in other variables than the one being added.
The "__" tuning functions for the Fortran interface,
nf__create, nf__open, and nf__enddef, are now
documented in the Fortran interface man pages.
Changed the extension of C++ files from ".cc" to ".cpp".
Renamed the C++ interface header file "netcdfcpp.h"
instead of "netcdf.hh", changing "netcdf.hh" to
include "netcdfcpp.h" for backward compatibility.
Fixed bug in ncdump using same CDL header name when
called with multiple files.
Added new NULL data type NC_NAT (Not A Type) to
facilitate checking whether a variable object has had
its type defined yet, for example when working with
packed values.
Fixed use of compile-time macro NO_NETCDF_2 so it
really doesn't include old netCDF-2 interfaces, as
intended.
Fixed C++ friend declarations to conform to C++ standard.
