Hi Jonathan Thanks for your help. Best regards David > -----Original Message----- > From: Jonathan Wakely [mailto:jwakely.gcc@xxxxxxxxx] > Sent: 04 November 2013 16:18 > To: David Aldrich > Cc: gcc-help@xxxxxxxxxxx > Subject: Re: Template linker errors with gcc 4.6.3 > > On 4 November 2013 16:08, David Aldrich wrote: > > Hi > > > >> Are your function templates defined in the headers that EVD.cpp includes? > > > > Yes, EVD.cpp includes: > > > > #include "Matrix.h" > > > > and Matrix.h contains: > > > > template<class T> class Matrix : public MatrixBase { > > public: > > <snip> > > static Matrix<T> eye( unsigned a_size, T a_scalingFactor=1.0 ) > DONT_INLINE; > > <snip> > > } > > Then that's the problem. As I said, function templates must be defined in every > file that uses them, or explicitly instantiated. > > I don't know why your code worked previously, it looks invalid (if you don't have > explicit instantiations in some other file.) > > > Click > https://www.mailcontrol.com/sr/1pCGxKPEo37GX2PQPOmvUsaHTTHE2WHLTel > TN!QmeCuZUHdHHxw+UX7EPQCPtTRzD80j2WpbjaKzR1Lppn2zgQ== to report > this email as spam.
