From e68480f2fc508ce73cad331ce4e8439e07d25702 Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Mon, 1 Sep 2025 22:00:02 +0300
Subject: use <> as expansion characters

+ I kind of like the 'symmetry' of <> being 'self' and <param> being
  some parameter, but having to type lots of extra <*> is a bit
  annoying, and might also be an issue for C++. Still, enough
  functionality for a hashmap example
---
 example_hashmap/new/main.c |  5 ++++-
 example_hashmap/new/map.h  | 22 +++++++++++-----------
 2 files changed, 15 insertions(+), 12 deletions(-)

(limited to 'example_hashmap')

diff --git a/example_hashmap/new/main.c b/example_hashmap/new/main.c
index 4846ab5..db575c6 100644
--- a/example_hashmap/new/main.c
+++ b/example_hashmap/new/main.c
@@ -1,6 +1,9 @@
 #include <assert.h>
 #include <stdio.h>
 
+/* provide generic any that matches anything/everything */
+typedef any {}
+
 #include "map.h"
 
 #define foreach(name, i, s) \
@@ -9,7 +12,7 @@
 /* int wrapper, provides cmp/hash for a generic integer type
  * (here a trait like is_integer would be ideal but oh well) */
 typedef intw[any I]() {
-	typedef I <>;
+	typedef <I> <>;
 
 	size_t <>_hash(<> *a)
 	{
diff --git a/example_hashmap/new/map.h b/example_hashmap/new/map.h
index e993139..e892011 100644
--- a/example_hashmap/new/map.h
+++ b/example_hashmap/new/map.h
@@ -17,8 +17,8 @@
  * supported so just go with this for now */
 typedef map[any K, any D]() {
 	struct <>_tuple {
-		K key;
-		D data;
+		<K> key;
+		<D> data;
 	};
 
 	typedef struct <>_tuple *<>_iter;
@@ -64,9 +64,9 @@ typedef map[any K, any D]() {
 		free(root->buckets);
 	}
 
-	D *<>_insert(<>* root, K key, D data)
+	<D> *<>_insert(<>* root, <K> key, <D> data)
 	{
-		size_t hash = <key>_hash(&key);
+		size_t hash = <K>_hash(&key);
 		/* look through buckets in order */
 		for (size_t b = 0; b < root->count; ++b) {
 			struct <>_bucket *bucket = root->buckets[b];
@@ -84,7 +84,7 @@ typedef map[any K, any D]() {
 			}
 
 			/* there already exists a node like this */
-			if (node->hash == hash && <key>_cmp(&node->t.key, &key) == 0)
+			if (node->hash == hash && <K>_cmp(&node->t.key, &key) == 0)
 				return &node->t.data;
 		}
 
@@ -122,12 +122,12 @@ typedef map[any K, any D]() {
 		return &node->t.data;
 	}
 
-	D *<>_find(<> *root, K key)
+	<D> *<>_find(<> *root, <K> key)
 	{
 		if (root->len == 0)
 			return NULL;
 
-		size_t hash = <key>_hash(&key);
+		size_t hash = <K>_hash(&key);
 		for (size_t b = 0; b < root->count; ++b) {
 			struct <>_bucket *bucket = root->buckets[b];
 			size_t idx = NGC_BUCKET_IDX(hash, root->pow2, b);
@@ -136,7 +136,7 @@ typedef map[any K, any D]() {
 			if (node->hash != hash)
 				continue;
 
-			if (<key>_cmp(&node->t.key, key) != 0)
+			if (<K>_cmp(&node->t.key, &key) != 0)
 				continue;
 
 			return &node->t.data;
@@ -145,7 +145,7 @@ typedef map[any K, any D]() {
 		return NULL;
 	}
 
-	void <>_remove_found(<> *root, D *data)
+	void <>_remove_found(<> *root, <D> *data)
 	{
 		struct <>_tuple *tuple = NGC_CONTAINER_OF(data, struct <>_tuple, data);
 		struct <>_node *node = NGC_CONTAINER_OF(tuple, struct <>_node, t);
@@ -153,9 +153,9 @@ typedef map[any K, any D]() {
 		root->len--;
 	}
 
-	void <>_remove(<> *root, K key)
+	void <>_remove(<> *root, <K> key)
 	{
-		D *found = <>_find(root, key);
+		<D> *found = <>_find(root, key);
 		if (!found)
 			return;
 
-- 
cgit v1.2.3