On Fri, May 04, 2007 at 02:18:31PM +0200, Zdenek Kotala wrote:
> Is the reason for keeping this in a code? Another kind of construct is:
>
> #define PG_RETURN_NULL() \
> do { fcinfo->isnull = true; return (Datum) 0; } while (0)
This is a standard way of getting multiple statements into a macro. If
the compiler complains, too bad, there isn't a standard alternative.
> for(;;) { ... break;} see e.g
> http://doxygen.postgresql.org/postgres_8c-source.html#l00198
So that within the loop you can use continue to start it again.
> or
> why is there while ... break instead if?
> http://doxygen.postgresql.org/comment_8c-source.html#l00221
Not sure about this one. It's not wrong, but it is unusual. Maybe
someone wanted to make it so that in the future it would handle
multiple cases?
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.