c++ - error: expected initializer before '<' token -

i'm trying have magma backend eigen in same way support mkl. while doing bump error above. relevant snippets below:

template <> /*error in line >>>>>*/ inline void assign_scalar_eig2magma<magmadoublecomplex,dcomplex>(magmadoublecomplex& magmascalar, const dcomplex& eigenscalar) {   magmascalar.x=eigenscalar.real();   magmascalar.y=eigenscalar.imag(); } 

and magmadoublecomplex defined in magma_types.h:

// ======================================== // define types specific implementation (cuda, opencl, mic) // define macros deal complex numbers #if have_cublas     #include <cublas.h>      typedef cudastream_t   magma_queue_t;     typedef cudaevent_t    magma_event_t;     typedef int            magma_device_t;      typedef cudoublecomplex magmadoublecomplex;     typedef cufloatcomplex  magmafloatcomplex; 

as far can see magmadoublecomplex declared doesn't seem issue here ...

update: indeed mistake, here template definition "mkl" , should "magma".

template<typename magmatype, typename eigentype> static inline void assign_scalar_eig2mkl(magmatype& magmascalar, const eigentype& eigenscalar) {   magmascalar=eigenscalar; }