diff --git a/gen_route_tests.rb b/gen_route_tests.rb
index b7cd17c..fbf7a20 100644
--- a/gen_route_tests.rb
+++ b/gen_route_tests.rb
@@ -39,7 +39,7 @@ END
 paths.each_index do |idx|
     path = paths.fetch(idx)
     puts "    m = r3_tree_match(n, \"#{path}\", NULL);"
-    puts "    ck_assert(m);"
+    puts "    ck_assert(m != NULL);"
     puts "    ck_assert(m->data == data#{idx});"
     puts "    ck_assert(m->endpoint > 0);"
 end
diff --git a/tests/check_routes.c b/tests/check_routes.c
index 20c9b31..60d6594 100644
--- a/tests/check_routes.c
+++ b/tests/check_routes.c
@@ -691,1347 +691,1347 @@ START_TEST (test_routes)
     r3_tree_compile(n, &err);
     ck_assert(err == NULL);
     m = r3_tree_match(n, "/foo/bar/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data0);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/bar/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data1);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/bar/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data2);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/bar/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data3);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/bar/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data4);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/bar/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data5);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/baz/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data6);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/baz/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data7);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/baz/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data8);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/baz/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data9);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/baz/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data10);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/baz/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data11);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/qux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data12);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/qux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data13);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/qux/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data14);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/qux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data15);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/qux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data16);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/qux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data17);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/quux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data18);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/quux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data19);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/quux/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data20);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/quux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data21);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/quux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data22);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/quux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data23);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/corge/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data24);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/corge/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data25);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/corge/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data26);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/corge/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data27);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/corge/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data28);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/corge/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data29);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/grault/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data30);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/grault/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data31);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/grault/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data32);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/grault/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data33);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/grault/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data34);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/grault/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data35);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/garply/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data36);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/garply/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data37);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/garply/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data38);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/garply/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data39);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/garply/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data40);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/foo/garply/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data41);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/foo/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data42);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/foo/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data43);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/foo/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data44);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/foo/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data45);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/foo/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data46);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/foo/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data47);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/baz/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data48);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/baz/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data49);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/baz/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data50);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/baz/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data51);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/baz/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data52);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/baz/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data53);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/qux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data54);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/qux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data55);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/qux/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data56);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/qux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data57);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/qux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data58);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/qux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data59);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/quux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data60);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/quux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data61);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/quux/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data62);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/quux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data63);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/quux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data64);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/quux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data65);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/corge/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data66);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/corge/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data67);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/corge/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data68);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/corge/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data69);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/corge/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data70);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/corge/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data71);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/grault/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data72);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/grault/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data73);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/grault/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data74);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/grault/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data75);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/grault/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data76);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/grault/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data77);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/garply/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data78);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/garply/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data79);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/garply/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data80);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/garply/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data81);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/garply/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data82);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/bar/garply/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data83);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/foo/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data84);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/foo/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data85);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/foo/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data86);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/foo/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data87);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/foo/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data88);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/foo/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data89);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/bar/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data90);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/bar/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data91);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/bar/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data92);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/bar/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data93);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/bar/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data94);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/bar/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data95);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/qux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data96);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/qux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data97);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/qux/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data98);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/qux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data99);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/qux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data100);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/qux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data101);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/quux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data102);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/quux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data103);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/quux/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data104);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/quux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data105);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/quux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data106);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/quux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data107);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/corge/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data108);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/corge/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data109);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/corge/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data110);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/corge/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data111);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/corge/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data112);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/corge/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data113);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/grault/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data114);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/grault/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data115);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/grault/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data116);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/grault/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data117);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/grault/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data118);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/grault/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data119);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/garply/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data120);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/garply/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data121);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/garply/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data122);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/garply/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data123);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/garply/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data124);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/baz/garply/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data125);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/foo/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data126);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/foo/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data127);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/foo/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data128);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/foo/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data129);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/foo/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data130);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/foo/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data131);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/bar/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data132);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/bar/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data133);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/bar/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data134);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/bar/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data135);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/bar/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data136);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/bar/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data137);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/baz/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data138);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/baz/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data139);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/baz/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data140);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/baz/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data141);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/baz/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data142);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/baz/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data143);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/quux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data144);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/quux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data145);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/quux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data146);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/quux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data147);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/quux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data148);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/quux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data149);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/corge/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data150);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/corge/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data151);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/corge/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data152);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/corge/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data153);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/corge/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data154);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/corge/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data155);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/grault/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data156);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/grault/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data157);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/grault/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data158);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/grault/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data159);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/grault/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data160);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/grault/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data161);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/garply/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data162);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/garply/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data163);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/garply/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data164);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/garply/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data165);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/garply/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data166);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/qux/garply/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data167);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/foo/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data168);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/foo/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data169);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/foo/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data170);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/foo/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data171);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/foo/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data172);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/foo/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data173);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/bar/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data174);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/bar/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data175);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/bar/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data176);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/bar/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data177);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/bar/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data178);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/bar/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data179);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/baz/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data180);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/baz/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data181);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/baz/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data182);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/baz/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data183);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/baz/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data184);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/baz/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data185);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/qux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data186);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/qux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data187);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/qux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data188);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/qux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data189);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/qux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data190);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/qux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data191);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/corge/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data192);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/corge/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data193);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/corge/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data194);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/corge/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data195);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/corge/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data196);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/corge/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data197);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/grault/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data198);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/grault/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data199);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/grault/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data200);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/grault/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data201);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/grault/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data202);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/grault/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data203);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/garply/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data204);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/garply/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data205);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/garply/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data206);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/garply/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data207);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/garply/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data208);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/quux/garply/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data209);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/foo/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data210);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/foo/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data211);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/foo/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data212);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/foo/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data213);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/foo/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data214);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/foo/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data215);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/bar/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data216);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/bar/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data217);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/bar/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data218);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/bar/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data219);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/bar/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data220);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/bar/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data221);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/baz/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data222);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/baz/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data223);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/baz/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data224);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/baz/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data225);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/baz/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data226);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/baz/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data227);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/qux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data228);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/qux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data229);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/qux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data230);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/qux/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data231);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/qux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data232);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/qux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data233);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/quux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data234);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/quux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data235);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/quux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data236);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/quux/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data237);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/quux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data238);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/quux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data239);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/grault/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data240);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/grault/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data241);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/grault/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data242);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/grault/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data243);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/grault/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data244);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/grault/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data245);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/garply/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data246);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/garply/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data247);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/garply/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data248);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/garply/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data249);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/garply/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data250);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/corge/garply/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data251);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/foo/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data252);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/foo/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data253);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/foo/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data254);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/foo/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data255);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/foo/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data256);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/foo/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data257);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/bar/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data258);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/bar/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data259);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/bar/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data260);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/bar/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data261);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/bar/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data262);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/bar/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data263);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/baz/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data264);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/baz/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data265);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/baz/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data266);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/baz/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data267);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/baz/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data268);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/baz/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data269);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/qux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data270);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/qux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data271);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/qux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data272);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/qux/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data273);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/qux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data274);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/qux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data275);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/quux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data276);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/quux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data277);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/quux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data278);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/quux/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data279);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/quux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data280);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/quux/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data281);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/corge/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data282);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/corge/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data283);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/corge/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data284);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/corge/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data285);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/corge/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data286);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/corge/garply", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data287);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/garply/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data288);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/garply/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data289);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/garply/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data290);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/garply/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data291);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/garply/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data292);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/grault/garply/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data293);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/foo/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data294);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/foo/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data295);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/foo/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data296);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/foo/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data297);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/foo/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data298);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/foo/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data299);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/bar/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data300);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/bar/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data301);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/bar/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data302);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/bar/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data303);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/bar/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data304);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/bar/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data305);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/baz/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data306);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/baz/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data307);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/baz/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data308);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/baz/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data309);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/baz/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data310);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/baz/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data311);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/qux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data312);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/qux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data313);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/qux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data314);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/qux/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data315);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/qux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data316);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/qux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data317);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/quux/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data318);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/quux/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data319);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/quux/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data320);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/quux/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data321);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/quux/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data322);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/quux/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data323);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/corge/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data324);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/corge/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data325);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/corge/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data326);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/corge/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data327);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/corge/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data328);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/corge/grault", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data329);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/grault/foo", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data330);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/grault/bar", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data331);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/grault/baz", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data332);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/grault/qux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data333);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/grault/quux", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data334);
     ck_assert(m->endpoint > 0);
     m = r3_tree_match(n, "/garply/grault/corge", NULL);
-    ck_assert(m);
+    ck_assert(m != NULL);
     ck_assert(m->data == data335);
     ck_assert(m->endpoint > 0);