Re: [netcdfgroup] NcFile close() member function?

• To: Taylor Binnington <tbinnington@xxxxxxxxx>
• Subject: Re: [netcdfgroup] NcFile close() member function?
• From: Russ Rew <russ@xxxxxxxxxxxxxxxx>
• Date: Tue, 29 Jan 2013 14:22:22 -0700

Hi Taylor,

You were the first to point out what was an unfortunate error in the
documentation for the netcdf-cxx4 release.  The 

  http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-cxx4/

directory actually contained a copy of the legacy netcdf-cxx
documentation, so not just the close method but much of the documentation
in that directory referred to the old release.  That directory is now a
link pointing to

  http://www.unidata.ucar.edu/software/netcdf/docs/cxx4/

where the netcdf-cxx4 documentation is maintained.

However, to partly answer your question, there is no close() method in
the netcdf-cxx4 package that corresponds to the manual close() method in
the legacy C++ API.  I'm forwarding this note to Lynton Appel, the
developer of the netcdf-cxx4 package, in case he can suggest a way to do
what you need.

--Russ

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> Hello,
> I have (I think...) a very simple question. I'm using the netCDF C++
> libraries (version 4.2.1, --has-c++4 -> yes). I am unsure how to close
> files, manually (before the destructor is called). According to this URL:
> 
> http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-cxx4/Class-NcFile.h=
> tml
> 
> there should be a close(void) member function. Here is a test file
> 
> #include <iostream>
> #include <netcdf>
> using namespace std;
> using namespace netCDF;
> using namespace netCDF::exceptions;
> 
> int main()
> {
> NcFile ncfile(file.nc, NcFile::read);
> ncfile.close();
> return 0;
> }
> 
> I get the error
> 
> error: =91class netCDF::NcFile=92 has no member named =91close=92
> 
> Am I misusing this method? How can I clear that memory (at the end of a
> loop) so that I can open several files in sequence with the same handle
> 'ncfile'? Thank you!
> 
> --=20
> Taylor Binnington
> 
> --20cf30780c10aa77ce04d472aa51
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> 
> <div dir=3D"ltr"><div style>Hello,</div><div style>I have (I think...) a ve=
> ry simple question. I&#39;m using the netCDF C++ libraries (version 4.2.1, =
> --has-c++4 -&gt; yes). I am unsure how to close files, manually (before the=
>  destructor is called). According to this URL:</div>
> 
> <div><br></div><a href=3D"http://www.unidata.ucar.edu/software/netcdf/docs/=
> netcdf-cxx4/Class-NcFile.html">http://www.unidata.ucar.edu/software/netcdf/=
> docs/netcdf-cxx4/Class-NcFile.html</a><div><br></div><div style>there shoul=
> d be a close(void) member function. Here is a test file</div>
> 
> <div style><br></div><div style><div>#include &lt;iostream&gt;</div><div>#i=
> nclude &lt;netcdf&gt;<br></div><div>using namespace std;<br></div><div>usin=
> g namespace netCDF;<br></div><div>using namespace netCDF::exceptions;</div>
> 
> <div><br></div></div><div style>int main()=A0</div><div style>{</div><div s=
> tyle>NcFile ncfile(<a href=3D"http://file.nc";>file.nc</a>, NcFile::read);</=
> div><div style>ncfile.close();</div><div style>return 0;</div><div style>}<=
> /div>
> 
> <div style><br></div><div style>I get the error<br></div><div><br></div><di=
> v>error: =91class netCDF::NcFile=92 has no member named =91close=92</div><d=
> iv><br></div><div>Am I misusing this method? How can I clear that memory (a=
> t the end of a loop) so that I can open several files in sequence with the =
> same handle &#39;ncfile&#39;? Thank you!<br clear=3D"all">
> 
> <div><br></div>-- <br><div dir=3D"ltr">Taylor Binnington<br><div><br><div><=
> /div></div></div>
> </div></div>
> 
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> 
> 
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    • From: Taylor Binnington

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  • [netcdfgroup] NcFile close() member function?
    • From: Taylor Binnington