diff options
| -rw-r--r-- | src/marker.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/marker.c b/src/marker.c index b58051a8c2b..0b2e1bf5c6b 100644 --- a/src/marker.c +++ b/src/marker.c @@ -332,6 +332,10 @@ buf_bytepos_to_charpos (struct buffer *b, ptrdiff_t bytepos) if (best_above == best_above_byte) return bytepos; + /* Check bytepos is not in the middle of a character. */ + eassert (bytepos >= BUF_Z_BYTE (b) + || CHAR_HEAD_P (BUF_FETCH_BYTE (b, bytepos))); + best_below = BEG; best_below_byte = BEG_BYTE; |