id_table.h: include guard

nobu · nobu · commit e9edce8ebbf9 · 2015-09-17T08:24:54.000Z
* id_table.h (RUBY_ID_TABLE_H): add include guard.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51887 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
diff --git a/id_table.h b/id_table.h
@@ -1,3 +1,5 @@
+#ifndef RUBY_ID_TABLE_H
+#define RUBY_ID_TABLE_H 1
 #include "ruby/ruby.h"
 
 struct rb_id_table;
@@ -24,3 +26,5 @@ typedef enum rb_id_table_iterator_result rb_id_table_foreach_func_t(ID id, VALUE
 typedef enum rb_id_table_iterator_result rb_id_table_foreach_values_func_t(VALUE val, void *data);
 void rb_id_table_foreach(struct rb_id_table *tbl, rb_id_table_foreach_func_t *func, void *data);
 void rb_id_table_foreach_values(struct rb_id_table *tbl, rb_id_table_foreach_values_func_t *func, void *data);
+
+#endif	/* RUBY_ID_TABLE_H */
