Re: [eigen] Visual C++ 2005 - error c2783 can't deduce template argument for type T |

[ Thread Index | Date Index | More lists.tuxfamily.org/eigen Archives ]

*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] Visual C++ 2005 - error c2783 can't deduce template argument for type T*From*: Benoît Jacob <jacob@xxxxxxxxxxxxxxx>*Date*: Mon, 3 Nov 2008 12:59:56 +0100

It's not released, it's in beta and there are a couple of source-incompatible changes to come soon; but nevertheless we warmly recommend using eigen2 instead of eigen1 for any new project. Cheers, Benoit On Friday 31 October 2008 23:03:21 Mark B wrote: > Oh.. thanks for the info... i thought i saw on the website that eigen > 2 was not yet released... I"ll have to go back and check that :D > > Mark > > On Fri, Oct 31, 2008 at 10:33 AM, Benoît Jacob <jacob@xxxxxxxxxxxxxxx> wrote: > > Oooh I see... you're talking about Eigen 1 !! > > > > Just FYI Eigen 2 is in beta right now, and for a long time now all effort > > has been focused on it. Eigen 2 supports Visual C++. I don't remember > > exactly what was the status of Eigen 1 support with Visual C++, so this > > issue might not be the only one. > > > > Maybe you might want to switch to Eigen 2 anyway? It has many advantages > > over Eigen 1, including full Visual C++ support, although I don't know > > how well Visual C++ performs (the quality of the C++ compiler matters a > > lot for Eigen 2). > > > > Cheers, > > Benoit > > > > On Friday 31 October 2008 17:45:22 Mark B wrote: > >> Vector3d test; > >> test.isZero(); > >> > >> That should reproduce the problem in Visual C++ 2005 Express Edition. > >> Here is the error: > >> > >> 1>h:\collision\eigen\vectorbase.h(579) : error C2783: 'T > >> Eigen::Util::epsilon(void)' : could not deduce template argument for > >> 'T' > >> 1> h:\collision\eigen\util.h(79) : see declaration of > >> 'Eigen::Util::epsilon' > >> 1> h:\collision\eigen\vectorbase.h(609) : while compiling class > >> template member function 'bool > >> Eigen::VectorBase<T,Derived>::isZero(const T &) const' > >> 1> with > >> 1> [ > >> 1> T=double, > >> 1> Derived=Eigen::Vector<double,3> > >> 1> ] > >> 1> h:\collision\eigen\vector.h(99) : see reference to class > >> template instantiation 'Eigen::VectorBase<T,Derived>' being compiled > >> 1> with > >> 1> [ > >> 1> T=double, > >> 1> Derived=Eigen::Vector<double,3> > >> 1> ] > >> 1> h:\collision\collmodel.h(9) : see reference to class > >> template instantiation 'Eigen::Vector<T,Size>' being compiled > >> 1> with > >> 1> [ > >> 1> T=double, > >> 1> Size=3 > >> 1> ] > >> > >> On Fri, Oct 31, 2008 at 4:38 AM, Benoît Jacob <jacob@xxxxxxxxxxxxxxx> wrote: > >> > Hi, > >> > > >> > Could you paste the exact source code causing this error and compiler > >> > output? > >> > > >> > By the way, Vector3d is a typedef for Matrix<double, 3, 1>. There is > >> > no separate Vector class template, vectors are a special case of > >> > matrices. > >> > > >> > Cheers, > >> > Benoit > >> > > >> > On Friday 31 October 2008 07:25:39 Mark B wrote: > >> >> Hi. When trying to call some_vector.isZero() (when the type of > >> >> some_vector is Vector3d, which I would imagine is Vector<double, 3>) > >> >> I get the error c2783 can't deduce template argument for type T. Any > >> >> idea why? Should be an easy thing to deduce (the error output even > >> >> says for class 'vector<double, 3>' so obviously it knows the type > >> >> should be double :P) Thanks, > >> >> > >> >> Mark > >> >> > >> >> --- > >> > >> --- > > > > --- > > --- ---

**Messages sorted by:**[ date | thread ]- Next by Date:
**[eigen] copyright / license question** - Next by thread:
**[eigen] copyright / license question**

Mail converted by MHonArc 2.6.19+ | http://listengine.tuxfamily.org/ |