boost/serialization/detail/get_data.hpp

   1 // (C) Copyright 2005 Matthias Troyer
   2 // Use, modification and distribution is subject to the Boost Software
   3 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //  See http://www.boost.org for updates, documentation, and revision history.
   7
   8 #ifndef BOOST_SERIALIZATION_DETAIL_GET_DATA_HPP
   9 #define BOOST_SERIALIZATION_DETAIL_GET_DATA_HPP
  10
  11 // MS compatible compilers support #pragma once
  12 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
  13 # pragma once
  14 #endif
  15
  16 #if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
  17 #define STD _STLP_STD
  18 #else
  19 #define STD std
  20 #endif
  21
  22
  23 #include <vector>
  24 #include <valarray>
  25
  26 namespace boost { namespace serialization { namespace detail {
  27
  28 template <class T, class Allocator>
  29 T* get_data(STD::vector<T,Allocator>& v)
  30 {
  31   return v.empty() ? 0 : &(v[0]);
  32 }
  33
  34 template <class T, class Allocator>
  35 T* get_data(STD::vector<T,Allocator> const & v)
  36 {
  37   return get_data(const_cast<STD::vector<T,Allocator>&>(v));
  38 }
  39
  40
  41 template <class T>
  42 T* get_data(STD::valarray<T>& v)
  43 {
  44   return v.size()==0 ? 0 : &(v[0]);
  45 }
  46
  47 template <class T>
  48 const T* get_data(STD::valarray<T> const& v)
  49 {
  50   return get_data(const_cast<STD::valarray<T>&>(v));
  51 }
  52
  53 } } } //namespace boost::serialization::detail
  54
  55 #endif // BOOST_SERIALIZATION_DETAIL_GET_DATA_HPP