[Boost-bugs] [Boost C++ Libraries] #13021: Odeint: Eigen upgrade to v 3.3.3 breaks compatibility

Subject: [Boost-bugs] [Boost C++ Libraries] #13021: Odeint: Eigen upgrade to v 3.3.3 breaks compatibility
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-05-10 18:25:08

#13021: Odeint: Eigen upgrade to v 3.3.3 breaks compatibility
-------------------------+----------------------------------
 Reporter:  speku.gmt@…  |       Type:  Bugs
   Status:  new          |  Milestone:  To Be Determined
Component:  None         |    Version:  Boost 1.64.0
 Severity:  Problem      |   Keywords:  odeint eigen include
-------------------------+----------------------------------
 In order to combine odeint with the Eigen library I use, among other
 things,
 #include "boost/numeric/odeint/external/eigen/eigen.hpp"

 This used to work perfectly with Eigen version 3.2 , but fails after an
 upgrade of the Eigen libraries to  version 3.3.3. The code does not
 compile, generating a large amount of error messages, beginning with:
 {{{
 In file included from
 /usr/include/boost/numeric/odeint/external/eigen/eigen.hpp:22:0,
                  from minimal.cpp:3:
 /usr/include/boost/numeric/odeint/external/eigen/eigen_algebra.hpp:35:37:
 error: ‘scalar_add_op’ in namespace ‘Eigen::internal’ does not name a
 template type
 (...)
 }}}
 A minimal reproducible example is:
 {{{
 #include <Eigen/Dense>
 #include <boost/numeric/odeint.hpp>
 #include "boost/numeric/odeint/external/eigen/eigen.hpp"
 int main() {}
 }}}
 This code does not compile with Eigen 3.3.3. The only functioning
 workaround I found was downgrading to Eigen 3.3.2.

 I noticed the problem while using Boost version 1.58.0, ubuntu 16.04, g++
 version 5.4.0.
 Upgraded to Boost version 1.64.0; to no avail. The error messages differ
 after the Boost upgrade but the problem persists.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/13021>
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