patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts commit https://github.com/vim/vim/commit/c799fe206e61f2e2c1231bc46cbe4bb354f3da69 Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 28 23:08:19 2019 +0200 patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts Problem: Alloc() returning "char_u *" causes a lot of type casts. Solution: Have it return "void *". (Mike Williams) Define ALLOC_ONE() to check the simple allocations.

--- a/src/change.c
+++ b/src/change.c
@@ -286,7 +286,7 @@ f_listener_add(typval_T *argvars, typval
 	    return;
     }
 
-    lnr = (listener_T *)alloc_clear(sizeof(listener_T));
+    lnr = ALLOC_CLEAR_ONE(listener_T);
     if (lnr == NULL)
     {
 	free_callback(callback, partial);