wrongly calling _init1<T>()

Submitted by cDc

Assigned to Nobody

Link to original bugzilla bug (#1393)
Version: 3.3 (current stable)

Description

Created attachment 776
code to reproduce the error

Not able to use a custom structure, that exposes an operator to access it as an Eigen matrix, as a Eigen type. Please see the simple example attached.

The compilation failes with VC2015 with the following message:

1>d:\pro\lib\eigen\eigen\src\core\matrix.h(296): error C2664: 'void Eigen::PlainObjectBase<Eigen::Matrix<double,3,1,0,3,1>>::_init1<T>(const double *)': cannot convert argument 1 from 'const TPoint3<TYPE>' to 'Eigen::EigenBase<Derived>::Index'  
1>          with  
1>          [  
1>              T=TPoint3<TYPE>  
1>          ]  
1>          and  
1>          [  
1>              Derived=Eigen::Matrix<double,3,1,0,3,1>  
1>          ]  
1>  d:\pro\lib\eigen\eigen\src\core\matrix.h(296): note: No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called  
1>  d:\pro\src\consoleapplication1\consoleapplication1.cpp(22): note: see reference to function template instantiation 'Eigen::Matrix<double,3,1,0,3,1>::Matrix<TPoint3<TYPE>>(const T &)' being compiled  
1>          with  
1>          [  
1>              T=TPoint3<TYPE>  
1>          ]  
1>  d:\pro\src\consoleapplication1\consoleapplication1.cpp(22): note: see reference to function template instantiation 'Eigen::Matrix<double,3,1,0,3,1>::Matrix<TPoint3<TYPE>>(const T &)' being compiled  
1>          with  
1>          [  
1>              T=TPoint3<TYPE>  
1>          ]  

Attachment 776, "code to reproduce the error":
ConsoleApplication1.cpp

Blocking

#558 (closed)