# Backport a compile fix from CGAL 5.5.5 to CGAL 4.14
# https://trac.macports.org/ticket/73166
# https://github.com/CGAL/cgal/issues/8313

--- CGAL-4.14.3/include/CGAL/boost/graph/iterator.h.orig	2020-02-22 13:04:12
+++ CGAL-4.14.3/include/CGAL/boost/graph/iterator.h	2025-12-23 12:28:16
@@ -222,18 +222,6 @@
   {}
 
 #ifndef DOXYGEN_RUNNING
-  // design patter: "safe bool"
-  // will be replaced by explicit operator bool with C++11
-  typedef void (Halfedge_around_source_iterator::*bool_type)() const;
-
-  void this_type_does_not_support_comparisons() const {}
-
-  operator bool_type() const
-  {
-    return (! (this->base() == NULL)) ?
-      &Halfedge_around_source_iterator::this_type_does_not_support_comparisons : 0;
-  }
-
   bool operator==( const Self& i) const {
     CGAL_assertion( anchor == anchor);
     return  ( g == i.g) && ( pos == i.pos) && ( winding == i.winding);
@@ -322,18 +310,6 @@
   {}
 
 #ifndef DOXYGEN_RUNNING
-  // design patter: "safe bool"
-  // will be replaced by explicit operator bool with C++11
-  typedef void (Halfedge_around_target_iterator::*bool_type)() const;
-
-  void this_type_does_not_support_comparisons() const {}
-
-  operator bool_type() const
-  {
-    return (! (this->base() == NULL)) ?
-      &Halfedge_around_target_iterator::this_type_does_not_support_comparisons : 0;
-  }
-
   bool operator==( const Self& i) const {
     CGAL_assertion( anchor == anchor);
     return  ( g == i.g) && ( pos == i.pos) && ( winding == i.winding);
@@ -421,18 +397,6 @@
   pointer           operator -> ( )       { return &pos; }
   const value_type* operator -> ( ) const { return &pos; }
 
-  // design patter: "safe bool"
-  // will be replaced by explicit operator bool with C++11
-  typedef void (Halfedge_around_face_iterator::*bool_type)() const;
-
-  void this_type_does_not_support_comparisons() const {}
-
-  operator bool_type() const
-  {
-    return (! (this->base() == NULL)) ?
-      &Halfedge_around_face_iterator::this_type_does_not_support_comparisons : 0;
-  }
-
   bool operator==( const Self& i) const {
     CGAL_assertion( anchor == anchor);
     return  ( g == i.g) && ( pos == i.pos) && ( winding == i.winding);