agar: Re-entrant Abstract Graph Algorithms

[ccan] / ccan / agar / test / trivial.c

diff --git a/ccan/agar/test/trivial.c b/ccan/agar/test/trivial.c
new file mode 100644 (file)
index 0000000..55a8199
--- /dev/null
+++ b/ccan/agar/test/trivial.c
@@ -0,0 +1,36 @@
+#include "config.h"
+
+#include <assert.h>
+
+#include <ccan/container_of/container_of.h>
+#include <ccan/ptrint/ptrint.h>
+
+#include <ccan/agar/agar.h>
+
+#include "simple-graphr.h"
+
+static const void *trivial_first_edge_r(const struct agar_graph *g,
+                                       const void *nr)
+{
+       assert(ptr2int(nr) == 1);
+       return NULL;
+}
+
+static const void *trivial_next_edge_r(const struct agar_graph *gr,
+                                      const void *nr, const void *edge)
+{
+       assert(0);
+}
+
+static int trivial_edge_info_r(const struct agar_graph *gr,
+                              const void *nr, const void *edge,
+                              struct agar_edge_info *eir)
+{
+       assert(0);
+}
+
+void trivial_graphr_init(struct trivial_graphr *tgr)
+{
+       agar_init_graph(&tgr->gr, trivial_first_edge_r, trivial_next_edge_r,
+                       trivial_edge_info_r);
+}