1 files changed, 55 insertions, 0 deletions
diff --git a/misc/examples/complex.c b/misc/examples/complex.c
new file mode 100644
index 00000000..dd2f951a
--- /dev/null
+++ b/misc/examples/complex.c
@@ -0,0 +1,55 @@
+
+// Define similar c++ data types:
+//
+// using FloatStack = std::stack<float>;
+// using StackList = std::stack<FloatStack>;
+// using ListMap = std::unordered_map<int, std::forward_list<StackList>>;
+// using MapMap = std::unordered_map<std::string, ListMap>;
+
+#include <stc/cstr.h>
+
+
+#define i_type FloatStack
+#define i_val float
+#include <stc/cstack.h>
+
+#define i_type StackList
+#define i_valclass FloatStack  // "class" picks up _clone, _drop
+#define i_opt c_no_cmp         // no FloatStack_cmp()
+#include <stc/clist.h>
+
+#define i_type ListMap
+#define i_key int
+#define i_valclass StackList   // "class" picks up _clone, _drop
+#include <stc/cmap.h>
+
+#define i_type MapMap
+#define i_key_str
+#define i_valclass ListMap
+#include <stc/cmap.h>
+
+
+int main()
+{
+    c_auto (MapMap, mmap)
+    {
+        FloatStack stack = FloatStack_with_size(10, 0);
+
+        // Put in some data in the structures
+        stack.data[3] = 3.1415927f;
+        printf("stack size: %" c_ZU "\n", FloatStack_size(&stack));
+
+        StackList list = StackList_init();
+        StackList_push_back(&list, stack);
+
+        ListMap lmap = ListMap_init();
+        ListMap_insert(&lmap, 42, list);
+        MapMap_insert(&mmap, cstr_from("first"), lmap);
+
+        // Access the data entry
+        const ListMap* lmap_p = MapMap_at(&mmap, "first");
+        const StackList* list_p = ListMap_at(lmap_p, 42);
+        const FloatStack* stack_p = StackList_back(list_p);
+        printf("value is: %f\n", *FloatStack_at(stack_p, 3)); // pi
+    }
+}