Thread

How do I construct a varlena?

Oliver Elphick <olly@lfix.co.uk> — 1998-08-04T10:07:54Z

Can you tell me, please, how to construct a varlena (to be returned by
a function).

I see it is declared as an int and a 1-byte array; I don't know how to
assign a longer string in place of that 1-byte array; the compiler
complains about incompatible types, whatever I do.

Thank you.

-- 
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
               PGP key from public servers; key ID 32B8FAA1
                 ========================================
     "And not only so, but we glory in tribulations also; 
      knowing that tribulation worketh patience; And  
      patience, experience; and experience, hope."          
                                        Romans 5:3,4

Re: [HACKERS] How do I construct a varlena?

Maarten Boekhold <maartenb@dutepp2.et.tudelft.nl> — 1998-08-04T14:28:21Z

On Tue, 4 Aug 1998, Oliver Elphick wrote:

> Can you tell me, please, how to construct a varlena (to be returned by
> a function).
> 
> I see it is declared as an int and a 1-byte array; I don't know how to
> assign a longer string in place of that 1-byte array; the compiler
> complains about incompatible types, whatever I do.

If I'm correct:

	malloc(sizeof(VARLENA) + l);

where 'l' is the length of the string you want to put in (without the
trailing '\0').

Maarten

_____________________________________________________________________________
| TU Delft, The Netherlands, Faculty of Information Technology and Systems  |
|                   Department of Electrical Engineering                    |
|           Computer Architecture and Digital Technique section             |
|                          M.Boekhold@et.tudelft.nl                         |
-----------------------------------------------------------------------------