| #include <cstdlib> |
| #include <iostream> |
| #include <sstream> |
| |
| using namespace std; |
| |
| void build_code(int max_args) |
| { |
| stringstream ss; |
| ss << "#define NLOHMANN_JSON_EXPAND( x ) x" << endl; |
| ss << "#define NLOHMANN_JSON_GET_MACRO("; |
| for (int i = 0 ; i < max_args ; i++) |
| ss << "_" << i + 1 << ", "; |
| ss << "NAME,...) NAME" << endl; |
| |
| ss << "#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \\" << endl; |
| for (int i = max_args ; i > 1 ; i--) |
| ss << "NLOHMANN_JSON_PASTE" << i << ", \\" << endl; |
| ss << "NLOHMANN_JSON_PASTE1)(__VA_ARGS__))" << endl; |
| |
| ss << "#define NLOHMANN_JSON_PASTE2(func, v1) func(v1)" << endl; |
| for (int i = 3 ; i <= max_args ; i++) |
| { |
| ss << "#define NLOHMANN_JSON_PASTE" << i << "(func, "; |
| for (int j = 1 ; j < i -1 ; j++) |
| ss << "v" << j << ", "; |
| ss << "v" << i-1 << ") NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE" << i-1 << "(func, "; |
| for (int j = 2 ; j < i-1 ; j++) |
| ss << "v" << j << ", "; |
| ss << "v" << i-1 << ")" << endl; |
| } |
| |
| cout << ss.str() << endl; |
| } |
| |
| int main(int argc, char** argv) |
| { |
| int max_args = 64; |
| build_code(max_args); |
| |
| return 0; |
| } |
| |