+// Explicit instantiations.
+template
+void combine_two_samples<float>(float w1, float w2, float pos1, float pos2, unsigned size,
+ float *offset, float *total_weight, float *sum_sq_error);
+
+template
+void combine_two_samples<fp16_int_t>(float w1, float w2, float pos1, float pos2, unsigned size,
+ fp16_int_t *offset, fp16_int_t *total_weight, float *sum_sq_error);
+