From 20ce6fa81cd9f55dca3212699d5949f8ebe7d95b Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Sat, 30 Aug 2025 00:01:15 +0300
Subject: add hashmap example

+ Doesn't quite work yet because <type> expansion isn't implemented
  yet
---
 example_hashmap/old/conts.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 example_hashmap/old/conts.h

(limited to 'example_hashmap/old/conts.h')

diff --git a/example_hashmap/old/conts.h b/example_hashmap/old/conts.h
new file mode 100644
index 0000000..fb0094b
--- /dev/null
+++ b/example_hashmap/old/conts.h
@@ -0,0 +1,14 @@
+#ifndef CONTS_H
+#define CONTS_H
+
+#define CONTS_JOIN2(a, b) a##_##b
+#define CONTS_JOIN(a, b) CONTS_JOIN2(a, b)
+
+#define CONTAINER_OF(ptr, type, member) \
+	(type *)((char *)(ptr) - offsetof(type, member))
+
+#define foreach(name, i, s)\
+	for (CONTS_JOIN(name, iter) i = CONTS_JOIN(name, begin)(s);\
+			!CONTS_JOIN(name, end)(s, i);\
+			i = CONTS_JOIN(name, next)(i))
+#endif /* CONTS_H */
-- 
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