From 9f33e64643e284b461084338e783ce43d20e0852 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Wed, 12 Apr 2023 08:59:19 +0200
Subject: [PATCH] avoid warning

---
 Mesh_3/include/CGAL/Mesh_3/generate_label_weights.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Mesh_3/include/CGAL/Mesh_3/generate_label_weights.h b/Mesh_3/include/CGAL/Mesh_3/generate_label_weights.h
index 912d7155e9d..bb40aaa0af8 100644
--- a/Mesh_3/include/CGAL/Mesh_3/generate_label_weights.h
+++ b/Mesh_3/include/CGAL/Mesh_3/generate_label_weights.h
@@ -139,7 +139,7 @@ void convert_itk_to_image_3(itk::Image<Image_word_type, 3>* const itk_img,
             itk_img->GetBufferPointer() + size,
             img_ptr);
 
-  if(filename != "")
+  if(!std::string(filename).empty())
     _writeImage(img, filename);
 }
 #endif