From 947b06566a58b888ded37026f95cc53874adede1 Mon Sep 17 00:00:00 2001
From: Carson Fleming <cflems@cflems.net>
Date: Sun, 1 Feb 2026 13:03:23 -0500
Subject: distinguish read-only vs readwrite foreach

---
 map.c | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

(limited to 'map.c')

diff --git a/map.c b/map.c
index 42882d0..41ab5ed 100644
--- a/map.c
+++ b/map.c
@@ -163,8 +163,8 @@ void* map_remove(map_t* map, const void* key) {
     return rv;
 }
 
-void map_foreach(map_t* map, foreach_func_t foreach_func, void* data) {
-    for (size_t i = 0; i < map->__num_buckets; i++) {
+void map_foreach_readonly(map_t* map, foreach_func_t foreach_func, void* data) {
+    for (size_t i = 0; i < map->size; i++) {
         struct __map_entry* entry = &map->__buckets[i];
         while (entry->next != NULL) {
             foreach_func(entry->key, entry->value, data);
@@ -172,3 +172,29 @@ void map_foreach(map_t* map, foreach_func_t foreach_func, void* data) {
         }
     }
 }
+
+void map_foreach_readwrite(
+    map_t* map,
+    foreach_func_t foreach_func,
+    void* data
+) {
+    void** keys = malloc(map->size * sizeof(void*));
+    void** vals = malloc(map->size * sizeof(void*));
+    size_t idx = 0;
+
+    for (size_t i = 0; i < map->__num_buckets; i++) {
+        struct __map_entry* entry = &map->__buckets[i];
+        while (entry->next != NULL) {
+            keys[idx] = entry->key;
+            vals[idx++] = entry->value;
+            entry = entry->next;
+        }
+    }
+
+    for (size_t i = 0; i < idx; i++) {
+        foreach_func(keys[i], vals[i], data);
+    }
+
+    free(keys);
+    free(vals);
+}
-- 
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