[misc] Remove warnings about String.set

The `a.[i] <- x` notation is deprecated and we were getting a couple
of warnings.

2 files changed, 8 insertions, 8 deletions

diff --git a/kernel/cemitcodes.ml b/kernel/cemitcodes.ml
index a0a13174ff..f2c3b402b3 100644
--- a/kernel/cemitcodes.ml
+++ b/kernel/cemitcodes.ml
@@ -106,10 +106,10 @@ let extend_label_table needed =
 
 let backpatch (pos, orig) =
   let displ = (!out_position - orig) asr 2 in
-  !out_buffer.[pos]   <- Char.unsafe_chr displ;
-  !out_buffer.[pos+1] <- Char.unsafe_chr (displ asr 8);
-  !out_buffer.[pos+2] <- Char.unsafe_chr (displ asr 16);
-  !out_buffer.[pos+3] <- Char.unsafe_chr (displ asr 24)
+  Bytes.set !out_buffer  pos    @@ Char.unsafe_chr displ;
+  Bytes.set !out_buffer (pos+1) @@ Char.unsafe_chr (displ asr 8);
+  Bytes.set !out_buffer (pos+2) @@ Char.unsafe_chr (displ asr 16);
+  Bytes.set !out_buffer (pos+3) @@ Char.unsafe_chr (displ asr 24)
 
 let define_label lbl =
   if lbl >= Array.length !label_table then extend_label_table lbl;
diff --git a/tools/coqdoc/index.ml b/tools/coqdoc/index.ml
index c9cb676e98..34108eff42 100644
--- a/tools/coqdoc/index.ml
+++ b/tools/coqdoc/index.ml
@@ -205,17 +205,17 @@ let prepare_entry s = function
       while !j <= l do
 	if not !quoted then begin
 	  (match s.[!j] with
-	  | '_' -> ntn.[!k] <- ' '; incr k
-	  | 'x' -> ntn.[!k] <- '_'; incr k
+	  | '_' -> Bytes.set ntn !k ' '; incr k
+	  | 'x' -> Bytes.set ntn !k '_'; incr k
 	  | '\'' -> quoted := true
 	  | _ -> assert false)
 	end
 	else
 	  if s.[!j] = '\'' then
 	    if (!j = l || s.[!j+1] = '_') then quoted := false
-	    else (incr j; ntn.[!k] <- s.[!j]; incr k)
+	    else (incr j; Bytes.set ntn !k s.[!j]; incr k)
 	  else begin
-	    ntn.[!k] <- s.[!j];
+	    Bytes.set ntn !k s.[!j];
 	    incr k
 	  end;
 	incr j