text: //
  //  Copyright (c) 2000-2002
  //  Joerg Walter, Mathias Koch
  //
  //  Distributed under the Boost Software License, Version 1.0. (See
  //  accompanying file LICENSE_1_0.txt or copy at
  //  http://www.boost.org/LICENSE_1_0.txt)
  //
  //  The authors gratefully acknowledge the support of
  //  GeNeSys mbH & Co. KG in producing this work.
  //
  
  #ifndef _BOOST_UBLAS_CONFIG_
  #define _BOOST_UBLAS_CONFIG_
  
  #include <cassert>
  #include <cstddef>
  #include <algorithm>
  #include <limits>
  
  #include <boost/config.hpp>
  #include <boost/static_assert.hpp>
  #include <boost/noncopyable.hpp>
  #include <boost/mpl/if.hpp>
  #include <boost/mpl/and.hpp>
  #include <boost/type_traits/is_same.hpp>
  #include <boost/type_traits/is_convertible.hpp>
  #include <boost/type_traits/is_const.hpp>
  #include <boost/type_traits/remove_reference.hpp>
  
  // C++11
  #if defined(__cplusplus) && __cplusplus >= 201103L
  
  #define BOOST_UBLAS_CPP_GE_2011
  
  #elif BOOST_MSVC >= 1800
  
  #define BOOST_UBLAS_CPP_GE_2011
  
  #else
  
  #undef BOOST_UBLAS_CPP_GE_2011 // Make sure no one defined it
  
  #endif
  
  // Microsoft Visual C++
  #if defined (BOOST_MSVC) && ! defined (BOOST_STRICT_CONFIG)
  
  // Version 7.1
  #if BOOST_MSVC == 1310
  // One of these workarounds is needed for MSVC 7.1 AFAIK
  // (thanks to John Maddock and Martin Lauer).
  #if !(defined(BOOST_UBLAS_NO_NESTED_CLASS_RELATION) || defined(BOOST_UBLAS_MSVC_NESTED_CLASS_RELATION))
  #define BOOST_UBLAS_NO_NESTED_CLASS_RELATION
  #endif
  
  #endif
  
  #endif
  
  
  // GNU Compiler Collection
  #if defined (__GNUC__) && ! defined (BOOST_STRICT_CONFIG)
  
  #if __GNUC__ >= 4 || (__GNUC__ >= 3 && __GNUC_MINOR__ >= 4)
  // Specified by ABI definition see GCC bug id 9982
  #define BOOST_UBLAS_USEFUL_ARRAY_PLACEMENT_NEW
  #endif
  
  #if __GNUC__ < 3
  #define BOOST_UBLAS_UNSUPPORTED_COMPILER 1
  #endif
  
  #endif
  
  
  // Intel Compiler
  #if defined (BOOST_INTEL) && ! defined (BOOST_STRICT_CONFIG)
  
  #if defined (BOOST_INTEL_LINUX) && (BOOST_INTEL_LINUX >= 800)
  // By inspection of compiler results
  #define BOOST_UBLAS_USEFUL_ARRAY_PLACEMENT_NEW
  #endif
  
  #if (BOOST_INTEL < 700)
  #define BOOST_UBLAS_UNSUPPORTED_COMPILER 1
  #endif
  
  // Define swap for index_pair and triple.
  #if (BOOST_INTEL <= 800)
  namespace boost { namespace numeric { namespace ublas {
      template<class C, class IC>
      class indexed_iterator;
  
      template<class V>
      class index_pair;
      template<class M>
      class index_triple;
  }}}
  
  namespace std {
      template<class V>
      inline
      void swap (boost::numeric::ublas::index_pair<V> i1, boost::numeric::ublas::index_pair<V> i2) {
          i1.swap (i2);
      }
      template<class M>
      inline
      void swap (boost::numeric::ublas::index_triple<M> i1, boost::numeric::ublas::index_triple<M> i2) {
          i1.swap (i2);
      }
      // iter_swap also needed for ICC on Itanium?
      template<class C, class IC>
      inline
      void iter_swap (boost::numeric::ublas::indexed_iterator<C, IC> it1,
                      boost::numeric::ublas::indexed_iterator<C, IC> it2) {
          swap (*it1, *it2);
      }
  }
  #endif
  
  #endif
  
  
  // Comeau compiler - thanks to Kresimir Fresl
  #if defined (__COMO__) && ! defined (BOOST_STRICT_CONFIG)
  
  // Missing std::abs overloads for float types in <cmath> are in <cstdlib>
  #if defined(__LIBCOMO__) && (__LIBCOMO_VERSION__ <= 31)
  #include <cstdlib>
  #endif
  
  #endif
  
  // PGI compiler
  #ifdef __PGIC__
  #define BOOST_UBLAS_UNSUPPORTED_COMPILER 0
  #endif
  
  //  HP aCC C++ compiler
  #if defined (__HP_aCC) && ! defined (BOOST_STRICT_CONFIG)
  #  if (__HP_aCC >= 60000 )
  #    define BOOST_UBLAS_USEFUL_ARRAY_PLACEMENT_NEW
  #endif
  #endif
  
  
  //  SGI MIPSpro C++ compiler
  #if defined (__sgi) && ! defined (BOOST_STRICT_CONFIG)
  
  // Missing std::abs overloads for float types in <cmath> are in <cstdlib>
  // This test should be library version specific.
  #include <cstdlib>
  
  #if __COMPILER_VERSION >=650
  // By inspection of compiler results - thanks to Peter Schmitteckert
  #define BOOST_UBLAS_USEFUL_ARRAY_PLACEMENT_NEW
  #endif
  
  #endif
  
  
  // Metrowerks Codewarrior
  #if defined (__MWERKS__) && ! defined (BOOST_STRICT_CONFIG)
  
  // 8.x
  #if __MWERKS__ <= 0x3003
  #define BOOST_UBLAS_UNSUPPORTED_COMPILER 1
  #endif
  
  #endif
  
  
  // Detect other compilers with serious defects - override by defineing BOOST_UBLAS_UNSUPPORTED_COMPILER=0
  #ifndef BOOST_UBLAS_UNSUPPORTED_COMPILER
  #if defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING) || defined(BOOST_NO_SFINAE) || defined(BOOST_NO_STDC_NAMESPACE)
  #define BOOST_UBLAS_UNSUPPORTED_COMPILER 1
  #endif
  #endif
  
  // Cannot continue with an unsupported compiler
  #if defined(BOOST_UBLAS_UNSUPPORTED_COMPILER) && (BOOST_UBLAS_UNSUPPORTED_COMPILER != 0)
  #error Your compiler and/or configuration is unsupported by this verions of uBLAS. Define BOOST_UBLAS_UNSUPPORTED_COMPILER=0 to override this message. Boost 1.32.0 includes uBLAS with support for many older compilers.
  #endif
  
  
  
  // Enable performance options in RELEASE mode
  #if defined (NDEBUG) || defined (BOOST_UBLAS_NDEBUG)
  
  #ifndef BOOST_UBLAS_INLINE
  #define BOOST_UBLAS_INLINE inline
  #endif
  
  // Do not check sizes!
  #define BOOST_UBLAS_USE_FAST_SAME
  
  // NO runtime error checks with BOOST_UBLAS_CHECK macro
  #ifndef BOOST_UBLAS_CHECK_ENABLE
  #define BOOST_UBLAS_CHECK_ENABLE 0
  #endif
  
  // NO type compatibility numeric checks
  #ifndef BOOST_UBLAS_TYPE_CHECK
  #define BOOST_UBLAS_TYPE_CHECK 0
  #endif
  
  
  // Disable performance options in DEBUG mode
  #else
  
  #ifndef BOOST_UBLAS_INLINE
  #define BOOST_UBLAS_INLINE
  #endif
  
  // Enable runtime error checks with BOOST_UBLAS_CHECK macro. Check bounds etc
  #ifndef BOOST_UBLAS_CHECK_ENABLE
  #define BOOST_UBLAS_CHECK_ENABLE 1
  #endif
  
  // Type compatibiltity numeric checks
  #ifndef BOOST_UBLAS_TYPE_CHECK
  #define BOOST_UBLAS_TYPE_CHECK 1
  #endif
  
  #endif
  
  
  /*
   * Type compatibility checks
   *  Control type compatibility numeric runtime checks for non dense matrices.
   *  Require additional storage and complexity
   */
  #if BOOST_UBLAS_TYPE_CHECK
  template <class Dummy>
  struct disable_type_check
  {
      static bool value;
  };
  template <class Dummy>
  bool disable_type_check<Dummy>::value = false;
  #endif
  #ifndef BOOST_UBLAS_TYPE_CHECK_EPSILON
  #define BOOST_UBLAS_TYPE_CHECK_EPSILON (type_traits<real_type>::type_sqrt (std::numeric_limits<real_type>::epsilon ()))
  #endif
  #ifndef BOOST_UBLAS_TYPE_CHECK_MIN
  #define BOOST_UBLAS_TYPE_CHECK_MIN (type_traits<real_type>::type_sqrt ( (std::numeric_limits<real_type>::min) ()))
  #endif
  
  
  /*
   * General Configuration
   */
  
  // Proxy shortcuts overload the alreadly heavily over used operator ()
  //#define BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
  
  // In order to simplify debugging is is possible to simplify expression template
  // so they are restricted to a single operation
  // #define BOOST_UBLAS_SIMPLE_ET_DEBUG
  
  // Use invariant hoisting.
  // #define BOOST_UBLAS_USE_INVARIANT_HOISTING
  
  // Use Duff's device in element access loops
  // #define BOOST_UBLAS_USE_DUFF_DEVICE
  
  // Choose evaluation method for dense vectors and matrices
  #if !(defined(BOOST_UBLAS_USE_INDEXING) || defined(BOOST_UBLAS_USE_ITERATING))
  #define BOOST_UBLAS_USE_INDEXING
  #endif
  // #define BOOST_UBLAS_ITERATOR_THRESHOLD 0
  
  // Use indexed iterators - unsupported implementation experiment
  // #define BOOST_UBLAS_USE_INDEXED_ITERATOR
  
  // Alignment of bounded_array type
  #ifndef BOOST_UBLAS_BOUNDED_ARRAY_ALIGN
  #define BOOST_UBLAS_BOUNDED_ARRAY_ALIGN
  #endif
  
  // Enable different sparse element proxies
  #ifndef BOOST_UBLAS_NO_ELEMENT_PROXIES
  // Sparse proxies prevent reference invalidation problems in expressions such as:
  // a [1] = a [0] = 1        Thanks to Marc Duflot for spotting this.
  // #define BOOST_UBLAS_STRICT_MAP_ARRAY
  #define BOOST_UBLAS_STRICT_VECTOR_SPARSE
  #define BOOST_UBLAS_STRICT_MATRIX_SPARSE
  // Hermitian matrices use element proxies to allow assignment to conjugate triangle
  #define BOOST_UBLAS_STRICT_HERMITIAN
  #endif
  
  // Define to configure special settings for reference returning members
  // #define BOOST_UBLAS_REFERENCE_CONST_MEMBER
  // #define BOOST_UBLAS_PROXY_CONST_MEMBER
  
  
  // Include type declerations and functions
  #include <boost/numeric/ublas/fwd.hpp>
  #include <boost/numeric/ublas/detail/definitions.hpp>
  
  
  #endif
  