Lame initializer_list and its rules

Bleh.c++

    SeparableKernelFilter( std::initializer_list<float> kx, std::initializer_list<float> ky ) 
    : SeparableKernelFilter( std::move( kx ), std::move( ky ), dummy ) {
    		
    }
    template <typename Tx, typename Ty>
    SeparableKernelFilter ( Tx&& xkern, Ty&& ykern, dummy_t = dummy ) {
    	for ( auto& x : xkern ) {
    		xkernel.push_back( static_cast<float>( x ) );
    	}
    	for ( auto& y : ykern ) {
    		ykernel.push_back( static_cast<float>( y ) );
    	}
    }