Change @dircategory from "GNU programming tools" to "Software development".

[bison.git] / src / relation.h

diff --git a/src/relation.h b/src/relation.h
index f79174c2487f744863f746c21eabefc3130cd5e5..5b8a8b2782d2153a7ef57674fda34ac5015ae658 100644 (file)
--- a/src/relation.h
+++ b/src/relation.h
@@ -25,24 +25,26 @@
 /* Performing operations on graphs coded as list of adjacency.
 
    If GRAPH is a relation, then GRAPH[Node] is a list of adjacent
-   nodes, ended with -1.  */
+   nodes, ended with END_NODE.  */
 
-typedef short int relation_node;
+#define END_NODE ((relation_node) -1)
+
+typedef size_t relation_node;
 typedef relation_node *relation_nodes;
 typedef relation_nodes *relation;
 
 
 /* Report a relation R that has SIZE vertices.  */
-void relation_print (relation r, size_t size, FILE *out);
+void relation_print (relation r, relation_node size, FILE *out);
 
 /* Compute the transitive closure of the FUNCTION on the relation R
    with SIZE vertices.
 
    If R (NODE-1, NODE-2) then on exit FUNCTION[NODE - 1] was extended
    (unioned) with FUNCTION[NODE - 2].  */
-void relation_digraph (relation r, size_t size, bitsetv *function);
+void relation_digraph (relation r, relation_node size, bitsetv *function);
 
 /* Destructively transpose *R_ARG, of size N.  */
-void relation_transpose (relation *R_arg, int n);
+void relation_transpose (relation *R_arg, relation_node n);
 
 #endif /* ! RELATION_H_ */