From ea62c316aeae88a2e142dab2ed405cc875b3b28e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Sun, 23 Apr 2023 22:35:45 +0200
Subject: [PATCH] boost::lambda -> c++11 lambda

---
 AABB_tree/include/CGAL/AABB_tree.h                   | 5 ++---
 Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h | 6 +-----
 2 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/AABB_tree/include/CGAL/AABB_tree.h b/AABB_tree/include/CGAL/AABB_tree.h
index 0016d4ecc09..3f49779b6ac 100644
--- a/AABB_tree/include/CGAL/AABB_tree.h
+++ b/AABB_tree/include/CGAL/AABB_tree.h
@@ -27,7 +27,6 @@
 #include <CGAL/AABB_tree/internal/Has_nested_type_Shared_data.h>
 #include <CGAL/AABB_tree/internal/Primitive_helper.h>
 #include <boost/optional.hpp>
-#include <boost/lambda/lambda.hpp>
 
 #ifdef CGAL_HAS_THREADS
 #include <CGAL/mutex.h>
@@ -326,7 +325,7 @@ public:
     boost::optional< typename Intersection_and_primitive_id<Ray>::Type >
     first_intersection(const Ray& query) const
     {
-      return first_intersection(query, boost::lambda::constant(false));
+      return first_intersection(query, [](Primitive_id){ return false; });
     }
     /// \endcond
 
@@ -351,7 +350,7 @@ public:
     boost::optional<Primitive_id>
     first_intersected_primitive(const Ray& query) const
     {
-      return first_intersected_primitive(query, boost::lambda::constant(false));
+      return first_intersected_primitive(query, [](Primitive_id){ return false; });
     }
     /// \endcond
     ///@}
diff --git a/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h b/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h
index 4c6dacd7802..6c380f054f2 100644
--- a/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h
+++ b/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h
@@ -33,8 +33,6 @@
 #include <algorithm>
 #include <iterator>
 
-#include <boost/lambda/lambda.hpp>
-#include <boost/lambda/bind.hpp>
 #include <boost/format.hpp>
 #include <boost/math/constants/constants.hpp>
 
@@ -329,7 +327,7 @@ private:
       typename FT_list::iterator pos = std::find_if(
         big_moves_.begin(),
         big_moves_.end(),
-        boost::lambda::_1 < new_sq_move );
+        [&](const FT& v) { return v< new_sq_move; } );
 
       big_moves_.insert(pos, new_sq_move);
     }
@@ -343,8 +341,6 @@ private:
 
   bool check_convergence() const
   {
-    namespace bl = boost::lambda;
-
     FT sum(0);
     for(typename FT_list::const_iterator it = big_moves_.begin();
         it != big_moves_.end();