text: // Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
  // Copyright 2008-2016 National ICT Australia (NICTA)
  // 
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  // http://www.apache.org/licenses/LICENSE-2.0
  // 
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  // ------------------------------------------------------------------------
  
  
  #undef ARMA_HAVE_CXX11
  #undef ARMA_HAVE_CXX14
  #undef ARMA_HAVE_CXX17
  
  #if (__cplusplus >= 201103L)
    #define ARMA_HAVE_CXX11
  #endif
  
  #if (__cplusplus >= 201402L)
    #define ARMA_HAVE_CXX14
  #endif
  
  #if (__cplusplus >= 201703L)
    #define ARMA_HAVE_CXX17
  #endif
  
  
  // MS really can't get its proverbial shit together
  #if (defined(_MSVC_LANG) && (_MSVC_LANG >= 201402L))
    #undef  ARMA_HAVE_CXX11
    #undef  ARMA_HAVE_CXX14
    
    #define ARMA_HAVE_CXX11
    #define ARMA_HAVE_CXX14
  #endif
  
  
  // warn about ignored option used in old versions of Armadillo
  #if defined(ARMA_DONT_USE_CXX11)
    #pragma message ("WARNING: ARMA_DONT_USE_CXX11 ignored")
  #endif
  
  
  #if !defined(ARMA_HAVE_CXX11)
    #error "*** C++11 compiler required; enable C++11 mode in your compiler, or use an earlier version of Armadillo"
  #endif
  
  
  // for compatibility with earlier versions of Armadillo
  #undef  ARMA_USE_CXX11
  #define ARMA_USE_CXX11
  