| 17 | }; |
| 18 | size_t ndim () const { return kernel_->get_ndim(); }; |
| 19 | size_t size () const { return kernel_->size(); }; |
| 20 | double value (const double* x1, const double* x2) const { return kernel_->value(x1, x2); }; |
| 21 | void gradient (const double* x1, const double* x2, const unsigned* which, double* grad) const { |
| 22 | return kernel_->gradient(x1, x2, which, grad); |