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-rw-r--r--src/errmsg.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/errmsg.cpp b/src/errmsg.cpp
index bef4d7548d..01c3ee8429 100644
--- a/src/errmsg.cpp
+++ b/src/errmsg.cpp
@@ -123,6 +123,7 @@ ErrorMsg *err_msg_create_with_line(Buf *path, size_t line, size_t column,
size_t end_line = line + 1;
size_t line_end_offset = (end_line >= line_offsets->length) ? buf_len(source) : line_offsets->at(line + 1);
size_t len = (line_end_offset + 1 > line_start_offset) ? (line_end_offset - line_start_offset - 1) : 0;
+ if (len == SIZE_MAX) len = 0;
buf_init_from_mem(&err_msg->line_buf, buf_ptr(source) + line_start_offset, len);