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From:Dustin Moore Date:March 19 2008 4:58am
Subject:Re: Problem Handling Null Values
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On Tue, 2008-03-18 at 01:18 -0600, Warren Young wrote:
> 1. if (!["Unit_id"].is_null()) ...

Worked perfect for me.  I don't really understand why I can't get the
others to work, but I just need a solution right now, so I happy with
what I have.

> > I used the [] operator instead of the at() function and received:
> > 	error: no match for ‘operator[]’ in ‘result[0]’
> It may be a side effect of the fact that the previously suggested code 
> doesn't compile.  If you still can't use this feature after taking one 
> of the alternatives above, it would seem you have some compiler 
> limitation.  I've tested this here on my CentOS 5.1 system (g++ 4.1.2), 
> and it *does* work.  I've made it part of the examples, so it will get 
> further tested on other compilers before the next release.

My compiler is:
	gcc version 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)

I am using Eclipse as my IDE, so maybe that is the issue.  I don't know.

Thanks for all your help,


Problem Handling Null ValuesDustin Moore17 Mar
  • Re: Problem Handling Null ValuesWarren Young17 Mar
  • Re: Problem Handling Null ValuesWarren Young17 Mar
    • Re: Problem Handling Null ValuesDustin Moore18 Mar
      • Re: Problem Handling Null ValuesWarren Young18 Mar
        • Re: Problem Handling Null ValuesDustin Moore19 Mar
          • Re: Problem Handling Null ValuesWarren Young19 Mar