Hi all,

I'm wondering if anyone has had success using Eigen in Visual Studio 2003 projects. I'm getting the following error:

[font=Courier]c:EigensrcCoreMathFunctions.h(41) : error C2785: 'NumTraits::Real Eigen::precision(void)' and 'Eigen::NumTraits::Real Eigen::precision(void)' have different return types
c:workMPLsrcThirdPartyEigensrcCoreMathFunctions.h(28) : see declaration of 'Eigen::precision'[/font]

It doesn't seem that templates are being handled correctly. Just wondering if there are any known workarounds other than swapping compilers?

Thanks,
Eugene

ehsu wrote:I'm wondering if anyone has had success using Eigen in Visual Studio 2003 projects. I'm getting the following error:

[font=Courier]c:EigensrcCoreMathFunctions.h(41) : error C2785: 'NumTraits::Real Eigen::precision(void)' and 'Eigen::NumTraits::Real Eigen::precision(void)' have different return types
c:workMPLsrcThirdPartyEigensrcCoreMathFunctions.h(28) : see declaration of 'Eigen::precision'[/font]

It doesn't seem that templates are being handled correctly. Just wondering if there are any known workarounds other than swapping compilers?

At least you could update compiler: MSVC 2005 works with Eigen, and MSVC 2008 even allows Eigen vectorization to happen.

I'm always grateful for patches letting MSVC 2003 be supported but I can't make it myself as I don't have a windows machine.

Cheers,
Benoit