#include "file2.h" result_type __device__ file1_func(int x); result_type_dynamic __device__ file2_func(int x) { if(x!=42) { const result_type r = file1_func(x); const result_type_dynamic rd { r.input, r.sum, true }; return rd; } else { const result_type_dynamic rd { x, x*x*x, false }; return rd; } }