[Dune] arithmetic operators for FieldVector<K,1>

[Oliver Sander]

My scalar codes compile when operator+ is removed from FieldVector<K,1>.
It does seem redundant and I vote for its removal.

--
Oliver

************************************************************************
* Oliver Sander                ** email: sander at mi.fu-berlin.de        *
* Freie Universität Berlin     ** phone: + 49 (30) 838 75217           *
* Institut für Mathematik II   ** URL  : page.mi.fu-berlin.de/~sander  *
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* 14195 Berlin, Germany        ** Member of MATHEON (www.matheon.de)   *
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On Thu, 7 Dec 2006, Sven Marnach wrote:

> Hi all,
>
> I hit the same issue independently and I agree with Carsten.
>
> Carsten Graeser schrieb am Di, 05. Dez 2006, um 12:29:34 +0100:
>> The only point I can see is, that the operator only use '+=' and
>> not '+' of K. So if you use a type K that does not implement '+' in the
>> present version FieldVector<K,1> has operator '+'. But K is assumed
>> to be compatible with double and why should FieldVector<K,1> have '+'
>> if K has not ?
>
> Moreover, the operator + of FieldVector<K,1> can be used _only_ if K
> doesn't have an operator +; otherwise there would be an ambiguity.  So
> this operator is really useless!
>
> Greetings,
>    Sven
>
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