From 96730f80cbc3b2d5aec2967a61f16bb2f02853e6 Mon Sep 17 00:00:00 2001
From: Matthias Melcher <github@matthiasm.com>
Date: Fri, 1 Dec 2023 16:53:21 +0100
Subject: Adds some possible NULL references and small fixes

---
 src/Fl_Text_Buffer.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/Fl_Text_Buffer.cxx')

diff --git a/src/Fl_Text_Buffer.cxx b/src/Fl_Text_Buffer.cxx
index caf4b3839..3bb8a10f0 100644
--- a/src/Fl_Text_Buffer.cxx
+++ b/src/Fl_Text_Buffer.cxx
@@ -1406,11 +1406,11 @@ int Fl_Text_Buffer::insert_(int pos, const char *text, int insertedLength)
 /*
  Remove a string from the buffer.
  Unicode safe. Start and end must be at a character boundary.
+ Start must be less than end.
  */
 void Fl_Text_Buffer::remove_(int start, int end)
 {
-  /* if the gap is not contiguous to the area to remove, move it there */
-
+  if (start >= end) return;
   if (mCanUndo) {
     if (mUndo->undoat == end && mUndo->undocut) {
       // continue to remove text at the same cursor position
-- 
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