Re: [ublas] creating a zero vector

From: Michael Stevens (mail_at_[hidden])
Date: 2005-09-18 15:35:56

On Samstag 17 September 2005 20:30, ZhiQiang Chen wrote:
> Dear all,
>
> I found some weird error in the following code:
>
>  Vector vec(ZeroVec(N)); // error incurred when compiled
>  // Vector vec(ZeroVec(N +1 -1)); // works fine
>  // Vector vec(ZeroVec(5)); // works fine

Certainly weird.

> The error message is:
>
> warning: the address of `main()::Vector
>  vec1(boost::numeric::ublas::zero_vector<double>)', will always be `true'

Even more odd. WHere does 'vec1' come from.

> /tmp/cc2twKnI.o(.text+0x147): In function `main':
> : undefined reference to `vec1(boost::numeric::ublas::zero_vector<double>)'

> So is it a bug over there? or something I haven't understood.

Help us out here. Which compiler/platform? Which version of Boost?

Michael
-- 
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Michael Stevens Systems Engineering
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