How to get array size from a pointer?

[Keith Thompson]

Re: How to get array size from a pointer?

CBFalconer <cbfalconer@yah oo.comwrites:

Richard Bos wrote:

>lawrence.jones@ siemens.com wrote:
>>

... snip ...

>>

>>Even programmers *with* database experience. Oracle, for
>>example, continues to treat empty string values and nulls
>>identically , although they have warned (forever) that that
>>could change some time in the future.

>>
>Now, I'm not much of an SQL expert, certainly not compared to
>the people at Oracle, but... isn't that illegal?

>
No, it isn't. First, they can certainly design their own functions
in any fashion they wish. Second, even if implementing C standard
functions, this is simply imposing a definition for 'undefined
behavior' on THEIR system.

I think Richard's question was about SQL, not about C.

In the interest of redirecting the question to a more appropriate
place, <http://en.wikipedia.or g/wiki/Sql_nullseems to provide an
answer; see 9.1, "Common mistakes".

--
Keith Thompson (The_Other_Keit h) kst-u@mib.org <http://www.ghoti.net/~kst>
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