class Position;
+namespace Eval {
+
+extern Color RootColor;
+
+extern void init();
extern Value evaluate(const Position& pos, Value& margin);
-extern std::string trace_evaluate(const Position& pos);
-extern void eval_init();
+extern std::string trace(const Position& pos);
-extern Color EvalRootColor;
+}
#endif // !defined(EVALUATE_H_INCLUDED)