patch 8.0.0520: using a function pointer while the function is known commit https://github.com/vim/vim/commit/ace95989ed81929a84e205b26d0972cb9d6b4b19 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 29 17:30:27 2017 +0200 patch 8.0.0520: using a function pointer while the function is known Problem: Using a function pointer instead of the actual function, which we know. Solution: Change mb_ functions to utf_ functions when already checked for Unicode. (Dominique Pelle, closes #1582)

--- a/src/message.c
+++ b/src/message.c
@@ -315,7 +315,7 @@ trunc_string(
 	for (;;)
 	{
 	    do
-		half = half - (*mb_head_off)(s, s + half - 1) - 1;
+		half = half - utf_head_off(s, s + half - 1) - 1;
 	    while (half > 0 && utf_iscomposing(utf_ptr2char(s + half)));
 	    n = ptr2cells(s + half);
 	    if (len + n > room || half == 0)