patch 8.1.2120: some MB_ macros are more complicated than necessary
Problem: Some MB_ macros are more complicated than necessary. (Dominique
Pelle)
Solution: Simplify the macros. Expand inline.
diff --git a/src/diff.c b/src/diff.c
index 01125aa..ece7bf5 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -744,7 +744,7 @@
// xdiff doesn't support ignoring case, fold-case the text.
c = PTR2CHAR(s);
c = enc_utf8 ? utf_fold(c) : MB_TOLOWER(c);
- orig_len = MB_PTR2LEN(s);
+ orig_len = mb_ptr2len(s);
if (mb_char2bytes(c, cbuf) != orig_len)
// TODO: handle byte length difference
mch_memmove(ptr + len, s, orig_len);