Using header-only-version with Eigen failed to compile about optim

[titovmaxim]

I'm sure what aa.cpp is but it seems you have a mixture of wrappers: 'arma' is used inside you aa.cpp file and 'Eigen' wrapper is enabled by -D compiler option. Probably you should use then Eigen insted of 'arma' in your aa.cpp.

[lshok]

Thx for the reply, Titovmaxim,
Indeed, my test main function used armadillo lib. The printed error message reflect this. However, I further commented all the code, except the include the "optim.hpp" file, it still could not pass the compiling. Maybe I should not include optim.hpp, but more specific header?

[titovmaxim]

I guess you have to define a correct macro to include a proper wrapper. Now you use -DOPTIM_ENABLE_EIGEN_WRAPPERS, which add an Eigen support to Optim library. Then in your code you use Armadilo, which leads to troubles.

I would suggest either to change compiler option to -DOPTIM_ENABLE_ARMA_WRAPPERS or just remove it at all and use #define OPTIM_ENABLE_ARMA_WRAPPERS prior to include optim.hpp.

[kthohr]

Don't mix Armadillo and Eigen.