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From: Jaakko Jarvi (jajarvi_at_[hidden])
Date: 2003-07-09 14:09:04

Where we've used enable_if, it has been very common that the condition
is not just a single traits lookup, but rather a logical expression,

template <class T, class U>
typename enable_if<is_matrix<T>::value && is_vector<U>::value,...>::type
operator*(const T& t, const U& u);

So definitely, this version of enable_if is needed.

  Jaakko & Jeremiah

In our last exciting episode Thomas Witt wrote:
> User-Agent: KMail/1.5

> I doubt that the _c version are needed frequently enough to warrant the extra
> types.

> Thomas

> --
> Dipl.-Ing. Thomas Witt
> Institut fuer Verkehrswesen, Eisenbahnbau und -betrieb, Universitaet Hannover
> voice: +49(0) 511 762 - 4273, fax: +49(0) 511 762-3001

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