+#define COUNTER_LIST \
+ CTR(commodities_loaded) \
+ CTR(trades_loaded) \
+ CTR(quantities_loaded) \
+ CTR(routes_considered) \
+ CTR(routes_eliminated) \
+ CTR(routes_valued) \
+ CTR(subroute_tails_valued) \
+ CTR(subroutes_valued) \
+ CTR(subroutes_nonempty)
+#define CTR(x) extern int ctr_##x;
+ COUNTER_LIST
+#undef CTR
+