# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1761475833 -3600
# Node ID 5732947cbcc2bcfedfaca308d6bf91db86b6250e
# Parent  e8089a590b71197e85faf350e8f5a9de81b956ae
default NULL allocator to cxDefaultAllocator

diff -r e8089a590b71 -r 5732947cbcc2 docs/Writerside/topics/allocator.h.md
--- a/docs/Writerside/topics/allocator.h.md	Sat Oct 25 21:33:56 2025 +0200
+++ b/docs/Writerside/topics/allocator.h.md	Sun Oct 26 11:50:33 2025 +0100
@@ -191,6 +191,8 @@
 The `source` pointer is never `NULL` and points to the source object.
 The optional `data` pointer can be used to pass additional state.
 
+All allocations should be performed by the specified allocator, which is guaranteed to be not `NULL`.
+
 A very basic clone function that performs a deep copy of a struct with two strings is shown below.
 
 ```C
diff -r e8089a590b71 -r 5732947cbcc2 src/list.c
--- a/src/list.c	Sat Oct 25 21:33:56 2025 +0200
+++ b/src/list.c	Sun Oct 26 11:50:33 2025 +0100
@@ -806,7 +806,8 @@
 }
 
 int cxListClone(CxList *dst, const CxList *src, cx_clone_func clone_func,
-    const CxAllocator *clone_allocator, void *data) {
+        const CxAllocator *clone_allocator, void *data) {
+    if (clone_allocator == NULL) clone_allocator = cxDefaultAllocator;
 
     // remember the original size
     size_t orig_size = dst->collection.size;
@@ -861,4 +862,4 @@
     }
 
     return 0;
-}
\ No newline at end of file
+}
diff -r e8089a590b71 -r 5732947cbcc2 src/map.c
--- a/src/map.c	Sat Oct 25 21:33:56 2025 +0200
+++ b/src/map.c	Sun Oct 26 11:50:33 2025 +0100
@@ -142,6 +142,7 @@
 
 int cxMapClone(CxMap *dst, const CxMap *src, cx_clone_func clone_func,
         const CxAllocator *clone_allocator, void *data) {
+    if (clone_allocator == NULL) clone_allocator = cxDefaultAllocator;
     CxMapIterator src_iter = cxMapIterator(src);
     if (cxCollectionStoresPointers(dst)) {
         for (size_t i = 0; i < cxMapSize(src); i++) {
@@ -177,6 +178,8 @@
 
 int cxMapDifference(CxMap *dst, const CxMap *minuend, const CxMap *subtrahend,
         cx_clone_func clone_func, const CxAllocator *clone_allocator, void *data) {
+    if (clone_allocator == NULL) clone_allocator = cxDefaultAllocator;
+
     const bool map_was_not_empty = cxMapSize(dst) > 0;
     CxMapIterator src_iter = cxMapIterator(minuend);
     if (cxCollectionStoresPointers(dst)) {