epoc32/include/stdapis/boost/multi_array/extent_gen.hpp
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100
branchSymbian3
changeset 4 837f303aceeb
permissions -rw-r--r--
Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed.
     1 // Copyright 2002 The Trustees of Indiana University.
     2 
     3 // Use, modification and distribution is subject to the Boost Software 
     4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
     5 // http://www.boost.org/LICENSE_1_0.txt)
     6 
     7 //  Boost.MultiArray Library
     8 //  Authors: Ronald Garcia
     9 //           Jeremy Siek
    10 //           Andrew Lumsdaine
    11 //  See http://www.boost.org/libs/multi_array for documentation.
    12 
    13 #ifndef BOOST_EXTENT_GEN_RG071801_HPP
    14 #define BOOST_EXTENT_GEN_RG071801_HPP
    15 
    16 #include "boost/multi_array/extent_range.hpp"
    17 #include "boost/multi_array/range_list.hpp"
    18 #include "boost/multi_array/types.hpp"
    19 #include "boost/array.hpp"
    20 #include <algorithm>
    21 
    22 namespace boost {
    23 namespace detail {
    24 namespace multi_array {
    25 
    26 
    27 template <std::size_t NumRanges>
    28 class extent_gen {
    29 public:
    30   typedef boost::detail::multi_array::index index;
    31   typedef boost::detail::multi_array::size_type size_type;
    32   typedef extent_range<index,size_type> range;
    33 private:
    34   typedef typename range_list_generator<range,NumRanges>::type range_list;
    35 public:
    36   template <std::size_t Ranges>
    37   struct gen_type {
    38     typedef extent_gen<Ranges> type;
    39   };
    40 
    41   range_list ranges_;
    42 
    43   extent_gen() { }
    44 
    45   // Used by operator[] to expand extent_gens
    46   extent_gen(const extent_gen<NumRanges-1>& rhs,
    47             const range& a_range)
    48   {
    49     std::copy(rhs.ranges_.begin(),rhs.ranges_.end(),ranges_.begin());
    50     *ranges_.rbegin() = a_range;
    51   }
    52 
    53   extent_gen<NumRanges+1>
    54   operator[](const range& a_range)
    55   {
    56     return extent_gen<NumRanges+1>(*this,a_range);    
    57   }
    58 
    59   extent_gen<NumRanges+1>
    60   operator[](index idx)
    61   {
    62     return extent_gen<NumRanges+1>(*this,range(0,idx));    
    63   }    
    64 
    65   static extent_gen<0> extents() {
    66     return extent_gen<0>();
    67   }
    68 };
    69 
    70 } // namespace multi_array
    71 } // namespace detail
    72 } // namespace boost
    73 
    74 
    75 #endif // BOOST_EXTENT_GEN_RG071801_HPP