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replaced "clone" with "derived" in CRTP (more usual, more flexible, more clear in its intent, and avoids copying the object twice on compilers that don't optimise return by value)

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Mathew Sutcliffe
2013-04-30 00:09:32 +01:00
parent ba70a150e0
commit a05b85135c
5 changed files with 55 additions and 29 deletions
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15
src/blackmisc/pqphysicalquantity.h
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@@ -60,12 +60,21 @@ protected:
}
/*!
* \brief Polymorphic clone as concrete class
* \brief Easy access to derived class (CRTP template parameter)
* \return
*/
PQ clone() const
PQ const* derived() const
{
return static_cast<PQ const &>(*this);
return static_cast<PQ const *>(this);
}
/*!
* \brief Easy access to derived class (CRTP template parameter)
* \return
*/
PQ* derived()
{
return static_cast<PQ *>(this);
}
/*!