From e008a015b6ef5e7c3d44a656742f986026c2ea29 Mon Sep 17 00:00:00 2001
From: Matt Borland <matt@mattborland.com>
Date: Fri, 22 Dec 2023 08:28:07 -0500
Subject: [PATCH] Remove use of Boost.Bind

---
 CMakeLists.txt                             |  1 -
 examples/stepper_details.cpp               |  3 +-
 include/boost/numeric/odeint/util/bind.hpp | 74 ++--------------------
 test/resizing.cpp                          |  1 -
 test/runge_kutta_concepts.cpp              |  1 -
 test/runge_kutta_controlled_concepts.cpp   |  1 -
 test/runge_kutta_error_concepts.cpp        |  1 -
 7 files changed, 5 insertions(+), 77 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1c9440a3..fd2899cd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,6 @@ target_include_directories(boost_numeric_odeint INTERFACE include)
 target_link_libraries(boost_numeric_odeint
   INTERFACE
     Boost::assert
-    Boost::bind
     Boost::compute
     Boost::config
     Boost::core
diff --git a/examples/stepper_details.cpp b/examples/stepper_details.cpp
index 05d3404c..0368f8b4 100644
--- a/examples/stepper_details.cpp
+++ b/examples/stepper_details.cpp
@@ -15,7 +15,6 @@
 
 #include <iostream>
 #include <array>
-#include <boost/bind.hpp>
 #include <boost/numeric/odeint.hpp>
 
 using namespace std;
@@ -130,7 +129,7 @@ int main( int argc , char **argv )
 
         //[ symplectic_stepper_detail_system_class_example
         harm_osc h;
-        rkn.do_step( make_pair( boost::bind( &harm_osc::f1 , h , _1 , _2 ) , boost::bind( &harm_osc::f2 , h , _1 , _2 ) ) ,
+        rkn.do_step( make_pair( detail::bind( &harm_osc::f1 , h , _1 , _2 ) , detail::bind( &harm_osc::f2 , h , _1 , _2 ) ) ,
                 x , t , dt );
         //]
     }
diff --git a/include/boost/numeric/odeint/util/bind.hpp b/include/boost/numeric/odeint/util/bind.hpp
index 1201afab..b0a9af74 100644
--- a/include/boost/numeric/odeint/util/bind.hpp
+++ b/include/boost/numeric/odeint/util/bind.hpp
@@ -17,85 +17,19 @@
 #ifndef BOOST_NUMERIC_ODEINT_UTIL_BIND_HPP_INCLUDED
 #define BOOST_NUMERIC_ODEINT_UTIL_BIND_HPP_INCLUDED
 
-
-#include <boost/numeric/odeint/config.hpp>
-
-
-#if BOOST_NUMERIC_ODEINT_CXX11 
-    #include <functional>
-#else
-#define BOOST_BIND_NO_PLACEHOLDERS
-#include <boost/bind.hpp>
-#endif
-
-namespace boost {
-namespace numeric {
-namespace odeint {
-namespace detail {
-
-#if BOOST_NUMERIC_ODEINT_CXX11 
-
-using ::std::bind;
-using namespace ::std::placeholders;
-
-
-#else
-
-// unnamed namespace to avoid multiple declarations (#138)
-namespace {
-using ::boost::bind;
-boost::arg<1> _1;
-boost::arg<2> _2;
-}
-// using ::boost::bind;
-// using ::_1;
-// using ::_2;
-
-#endif
-
-}
-}
-}
-}
-
-
-
-
-
-/*
-
-// the following is the suggested way. Unfortunately it does not work with all compilers.
-
-#ifdef BOOST_NO_CXX11_HDR_FUNCTIONAL
-#include <boost/bind.hpp>
-#else
 #include <functional>
-#endif
-
 
 namespace boost {
 namespace numeric {
 namespace odeint {
 namespace detail {
 
-    
-#ifdef BOOST_NO_CXX11_HDR_FUNCTIONAL
-
-using ::boost::bind;
-using ::_1;
-using ::_2;
-
-#else
-
 using ::std::bind;
 using namespace ::std::placeholders;
 
-#endif
-
-
-}
-}
-}
-}*/
+} //namespace detail
+} //namespace odeint
+} //namespace numeric
+} //namespace boost
 
 #endif // BOOST_NUMERIC_ODEINT_UTIL_BIND_HPP_INCLUDED
diff --git a/test/resizing.cpp b/test/resizing.cpp
index 2dede6e9..f263927e 100644
--- a/test/resizing.cpp
+++ b/test/resizing.cpp
@@ -26,7 +26,6 @@
 #include <cmath>
 
 #include <array>
-#include <boost/bind.hpp>
 #include <boost/utility.hpp>
 #include <boost/type_traits/integral_constant.hpp>
 
diff --git a/test/runge_kutta_concepts.cpp b/test/runge_kutta_concepts.cpp
index 8fa073f7..70c97168 100644
--- a/test/runge_kutta_concepts.cpp
+++ b/test/runge_kutta_concepts.cpp
@@ -34,7 +34,6 @@
 #include <boost/test/unit_test.hpp>
 
 #include <boost/ref.hpp>
-#include <boost/bind.hpp>
 #include <boost/utility.hpp>
 #include <boost/type_traits/add_reference.hpp>
 
diff --git a/test/runge_kutta_controlled_concepts.cpp b/test/runge_kutta_controlled_concepts.cpp
index 8a1e9b0f..4cd8d3bc 100644
--- a/test/runge_kutta_controlled_concepts.cpp
+++ b/test/runge_kutta_controlled_concepts.cpp
@@ -34,7 +34,6 @@
 #include <boost/test/unit_test.hpp>
 
 #include <boost/ref.hpp>
-#include <boost/bind.hpp>
 #include <boost/utility.hpp>
 #include <boost/type_traits/add_reference.hpp>
 
diff --git a/test/runge_kutta_error_concepts.cpp b/test/runge_kutta_error_concepts.cpp
index 5afe589e..3779c3e9 100644
--- a/test/runge_kutta_error_concepts.cpp
+++ b/test/runge_kutta_error_concepts.cpp
@@ -34,7 +34,6 @@
 #include <boost/test/unit_test.hpp>
 
 #include <boost/ref.hpp>
-#include <boost/bind.hpp>
 #include <boost/utility.hpp>
 #include <boost/type_traits/add_reference.hpp>