Missing types in C header files

Tony Griffiths writes:

I've done a search of all the header files in my installation (and also
all the source files that I compiled), and cannot find the definition of
the PGFunction type. Does anyone have any idea of where I can find this
definition, or of why it might be missing.

fmgr.h

--
Peter Eisentraut peter_e@gmx.net

Tony Griffiths wrote:

Hi,
I'm trying to start to program with the PostgreSQL's geometric primitive
types, and have started to write some code using them (PostgreSQL
version 7.1.3, installed from source). However when I
include the file utils/geo_decls.h I get an error starting that the type
PGFunction (found in a file included from geo_decls.h) cannot be found.

I've done a search of all the header files in my installation (and also
all the source files that I compiled), and cannot find the definition of
the PGFunction type. Does anyone have any idea of where I can find this
definition, or of why it might be missing.

Hmm. I'm not sure (having not integrated client-side handling of these
types using Postgres' own definition of the structures) but I think that
these definitions are not intended for you to use directly. There is a
set of include files intended for client-side programs, and perhaps this
data type needs to be mentioned there. Or perhaps we make no provision
for that (yet) and you are on your own. Perhaps someone else will speak
up on The Right Way To Do This?

- Thomas

I've looked in fmgr.h and there is no definition of this type there - it
uses the type, but does not define it.

Peter Eisentraut wrote:

Tony Griffiths writes:

I've done a search of all the header files in my installation (and also
all the source files that I compiled), and cannot find the definition of
the PGFunction type. Does anyone have any idea of where I can find this
definition, or of why it might be missing.

fmgr.h

--
Peter Eisentraut peter_e@gmx.net

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--
Tony

---------------------------------
Dr. Tony Griffiths
Research Fellow
Information Management Group,
Department of Computer Science,
The University of Manchester,
Oxford Road,
Manchester M13 9PL,
United Kingdom

Tel. +44 (0) 161 275 6139
Fax +44 (0) 161 275 6236
email tony.griffiths@cs.man.ac.uk
---------------------------------

I've found the mistake - as usual it's down to me! I didn't realise that
I had to include postgres.h before including geo_decls.h All now
compiles ok.

Tony

Tony Griffiths wrote:

Tony Griffiths <tony.griffiths@cs.man.ac.uk> writes:

I've looked in fmgr.h and there is no definition of this type there - it
uses the type, but does not define it.

Eh?

typedef Datum (*PGFunction) (FunctionCallInfo fcinfo);

Looks like a definition to me ...

regards, tom lane