diff -r 74c6582adabb -r f74e4fc496a2 tests/test_list.c
--- a/tests/test_list.c	Fri Dec 19 14:14:22 2025 +0100
+++ b/tests/test_list.c	Fri Dec 19 14:15:54 2025 +0100
@@ -539,6 +539,13 @@
     }
 }
 
+static int test_ccmp_int(const void *l, const void *r, void *c) {
+    int *z = c;
+    // return bullshit to make the test fail when c was not passed correctly
+    if (z == NULL || *z != 1337) return -1;
+    return cx_cmp_int(l, r);
+}
+
 typedef struct node {
     struct node *next;
     struct node *prev;
@@ -1468,7 +1475,7 @@
         CX_TEST_ASSERT(cxListSize(list) == 0);
         CX_TEST_ASSERT(list->collection.allocator == cxDefaultAllocator);
         CX_TEST_ASSERT(list->collection.simple_cmp == NULL);
-        CX_TEST_ASSERT(list->collection.advanced_cmp == cx_acmp_memcmp);
+        CX_TEST_ASSERT(list->collection.advanced_cmp == cx_ccmp_memcmp);
         CX_TEST_ASSERT(list->collection.cmp_data == &list->collection.elem_size);
         CX_TEST_ASSERT(!list->collection.store_pointer);
     }
@@ -1526,7 +1533,7 @@
         CX_TEST_ASSERT(cxListSize(list) == 0);
         CX_TEST_ASSERT(list->collection.allocator == cxDefaultAllocator);
         CX_TEST_ASSERT(list->collection.simple_cmp == NULL);
-        CX_TEST_ASSERT(list->collection.advanced_cmp == cx_acmp_memcmp);
+        CX_TEST_ASSERT(list->collection.advanced_cmp == cx_ccmp_memcmp);
         CX_TEST_ASSERT(list->collection.cmp_data == &list->collection.elem_size);
         CX_TEST_ASSERT(!list->collection.store_pointer);
     }
@@ -2653,11 +2660,24 @@
     const size_t len = 47; \
     int *testdata = int_test_data_added_to_list(list, isptrlist, len); \
     CxList *other = otherctr; \
+    cxSetCompareFunc(list, cx_cmp_int); \
     cxSetCompareFunc(other, cx_cmp_int); \
     for (size_t i = 0; i < len; i++) cxListAdd(other, &testdata[i]); \
     CX_TEST_CALL_SUBROUTINE(test_list_verify_compare, list, other); \
     cxListFree(other); \
     free(testdata); \
+}) \
+roll_out_test_combos(compare2_##suffix, { \
+    const size_t len = 47; \
+    int *testdata = int_test_data_added_to_list(list, isptrlist, len); \
+    CxList *other = otherctr; \
+    int z = 1337; \
+    cxSetAdvancedCompareFunc(list, test_ccmp_int, &z); \
+    cxSetAdvancedCompareFunc(other, test_ccmp_int, &z); \
+    for (size_t i = 0; i < len; i++) cxListAdd(other, &testdata[i]); \
+    CX_TEST_CALL_SUBROUTINE(test_list_verify_compare, list, other); \
+    cxListFree(other); \
+    free(testdata); \
 })
 
 roll_out_compare_tests(
@@ -3520,6 +3540,14 @@
     cx_test_register(suite, test_list_parl_compare_arl);
     cx_test_register(suite, test_list_parl_compare_pll);
     cx_test_register(suite, test_list_parl_compare_parl);
+    cx_test_register(suite, test_list_arl_compare2_ll);
+    cx_test_register(suite, test_list_arl_compare2_arl);
+    cx_test_register(suite, test_list_arl_compare2_pll);
+    cx_test_register(suite, test_list_arl_compare2_parl);
+    cx_test_register(suite, test_list_parl_compare2_ll);
+    cx_test_register(suite, test_list_parl_compare2_arl);
+    cx_test_register(suite, test_list_parl_compare2_pll);
+    cx_test_register(suite, test_list_parl_compare2_parl);
     cx_test_register(suite, test_list_arl_simple_destr);
     cx_test_register(suite, test_list_parl_simple_destr);
     cx_test_register(suite, test_list_arl_advanced_destr);
@@ -3657,6 +3685,14 @@
     cx_test_register(suite, test_list_pll_compare_arl);
     cx_test_register(suite, test_list_pll_compare_pll);
     cx_test_register(suite, test_list_pll_compare_parl);
+    cx_test_register(suite, test_list_ll_compare2_ll);
+    cx_test_register(suite, test_list_ll_compare2_arl);
+    cx_test_register(suite, test_list_ll_compare2_pll);
+    cx_test_register(suite, test_list_ll_compare2_parl);
+    cx_test_register(suite, test_list_pll_compare2_ll);
+    cx_test_register(suite, test_list_pll_compare2_arl);
+    cx_test_register(suite, test_list_pll_compare2_pll);
+    cx_test_register(suite, test_list_pll_compare2_parl);
     cx_test_register(suite, test_list_ll_simple_destr);
     cx_test_register(suite, test_list_pll_simple_destr);
     cx_test_register(suite, test_list_ll_advanced_destr);
@@ -3767,6 +3803,14 @@
     cx_test_register(suite, test_list_pkvl_compare_arl);
     cx_test_register(suite, test_list_pkvl_compare_pll);
     cx_test_register(suite, test_list_pkvl_compare_parl);
+    cx_test_register(suite, test_list_kvl_compare2_ll);
+    cx_test_register(suite, test_list_kvl_compare2_arl);
+    cx_test_register(suite, test_list_kvl_compare2_pll);
+    cx_test_register(suite, test_list_kvl_compare2_parl);
+    cx_test_register(suite, test_list_pkvl_compare2_ll);
+    cx_test_register(suite, test_list_pkvl_compare2_arl);
+    cx_test_register(suite, test_list_pkvl_compare2_pll);
+    cx_test_register(suite, test_list_pkvl_compare2_parl);
     cx_test_register(suite, test_list_kvl_simple_destr);
     cx_test_register(suite, test_list_pkvl_simple_destr);
     cx_test_register(suite, test_list_kvl_advanced_destr);