1 files changed, 19 insertions, 9 deletions

diff --git a/src/nvim/grid.c b/src/nvim/grid.c
index 2b73ff895d..46f8a59710 100644
--- a/src/nvim/grid.c
+++ b/src/nvim/grid.c
@@ -11,9 +11,19 @@
 //
 // The grid_*() functions write to the screen and handle updating grid->lines[].
 
+#include <assert.h>
+#include <limits.h>
+#include <stdlib.h>
+
 #include "nvim/arabic.h"
+#include "nvim/buffer_defs.h"
+#include "nvim/globals.h"
 #include "nvim/grid.h"
 #include "nvim/highlight.h"
+#include "nvim/log.h"
+#include "nvim/message.h"
+#include "nvim/option_defs.h"
+#include "nvim/types.h"
 #include "nvim/ui.h"
 #include "nvim/vim.h"
 
@@ -130,18 +140,18 @@ void grid_putchar(ScreenGrid *grid, int c, int row, int col, int attr)
 
 /// get a single character directly from grid.chars into "bytes[]".
 /// Also return its attribute in *attrp;
-void grid_getbytes(ScreenGrid *grid, int row, int col, char_u *bytes, int *attrp)
+void grid_getbytes(ScreenGrid *grid, int row, int col, char *bytes, int *attrp)
 {
-  size_t off;
-
   grid_adjust(&grid, &row, &col);
 
   // safety check
-  if (grid->chars != NULL && row < grid->rows && col < grid->cols) {
-    off = grid->line_offset[row] + (size_t)col;
-    *attrp = grid->attrs[off];
-    schar_copy((char *)bytes, grid->chars[off]);
+  if (grid->chars == NULL || row >= grid->rows || col >= grid->cols) {
+    return;
   }
+
+  size_t off = grid->line_offset[row] + (size_t)col;
+  *attrp = grid->attrs[off];
+  schar_copy(bytes, grid->chars[off]);
 }
 
 /// put string '*text' on the window grid at position 'row' and 'col', with
@@ -243,7 +253,7 @@ void grid_puts_len(ScreenGrid *grid, char *text, int textlen, int row, int col,
       ? utfc_ptr2len_len(ptr, (int)((text + len) - ptr))
       : utfc_ptr2len(ptr);
     u8c = len >= 0
-      ? utfc_ptr2char_len((char_u *)ptr, u8cc, (int)((text + len) - ptr))
+      ? utfc_ptr2char_len(ptr, u8cc, (int)((text + len) - ptr))
       : utfc_ptr2char(ptr, u8cc);
     mbyte_cells = utf_char2cells(u8c);
     if (p_arshape && !p_tbidi && ARABIC_CHAR(u8c)) {
@@ -254,7 +264,7 @@ void grid_puts_len(ScreenGrid *grid, char *text, int textlen, int row, int col,
         nc1 = NUL;
       } else {
         nc = len >= 0
-          ? utfc_ptr2char_len((char_u *)ptr + mbyte_blen, pcc,
+          ? utfc_ptr2char_len(ptr + mbyte_blen, pcc,
                               (int)((text + len) - ptr - mbyte_blen))
           : utfc_ptr2char(ptr + mbyte_blen, pcc);
         nc1 = pcc[0];