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Re: Reading character variables through nc_get_var*_(text|schar|uchar)

Philippe Poilbarbe <Philippe.Poilbarbe@xxxxxx> writes:

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> Hello,<br>
> <br>
> I am a bit confused concerning the functions
> nc_get_var*_(text|schar|uchar)<br>
> Specially for my case nc_get_vara_text, nc_get_vara_uchar,
> nc_get_vara_schar.<br>
> <br>
> I thought they were all designed to read character variables returning
> the same<br>
> values in all cases (just casting the pointers).<br>
> <br>
> But when I use nc_get_vara_uchar I have the following error:<br>
> &laquo;Attempt to convert between text &amp; numbers&raquo;<br>
> <br>
> Are the uchar/schar variants of the functions for numbers or do I<br>
> miss something?<br>
> <br>
> Thanks.<br>
> Philippe<br>
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> CLS Space Oceanography Division<br>
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Howdy!

If you define a variable as NC_CHAR you must use the *_text functions
to read and write it.

If you define a variable as NC_BYTE you may use any of the numeric
read/write functions (i.e. _uchar, _schar, _short, etc.) The number
types can all be converted to other number types.

This is all explained here if you want more information:

http://www.unidata.ucar.edu/software/netcdf/docs/netcdf/Type-Conversion.html

Thanks!

Ed

-- 
Ed Hartnett  -- ed@xxxxxxxxxxxxxxxx

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