Index: placement.h
===================================================================
--- placement.h	(revision 35080)
+++ placement.h	(revision 35081)
@@ -16,3 +16,6 @@
 
 /* Iterate all subcircuits in data and build ctx->subcs hash */
 void pcb_placement_build(pcb_placement_t *ctx, pcb_data_t *data);
+
+/* return subc's prototype or NULL */
+#define pcb_placement_get(ctx, subc)    htscp_get((ctx)->subcs, (subc))