Re: variadic args to C functions

Hello

I wrote lot of C VARIADIC functions - some examples are in core -
"format" function

   Schema   |   Name    | Result data type | Argument data types  |  Type
------------+-----------+------------------+----------------------+--------
 pg_catalog | concat    | text             | VARIADIC "any"       | normal
 pg_catalog | concat_ws | text             | text, VARIADIC "any" | normal
 pg_catalog | format    | text             | text, VARIADIC "any" | normal
(3 rows)

look to http://okbob.blogspot.cz/2010/11/new-version-of-pst-collection-is.html
source code (string functions)

Code should be same without differences between external and internal functions.

Regards

Pavel


2013/6/20 Alan Nilsson :
> Has anyone got any pointers on implementing a C function in an extension that takes variadic args?  I would like to do something like:
>
> select my_function(XXX,...);  where XXX will be between 1 and many integers.
>
> Possible?  I didn't see any examples in the contrib directory.
>
>
>
>
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