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Adding the Tuple library files

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[SVN r10828]
This commit is contained in:
Jaakko Järvi
2001-08-10 11:45:43 +00:00
commit adeeed1f6d
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// tuple_basic.hpp -----------------------------------------------------
// Copyright (C) 1999, 2000 Jaakko J<>rvi (jaakko.jarvi@cs.utu.fi)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.
// For more information, see http://www.boost.org
// Outside help:
// This and that, Gary Powell.
// Fixed return types for get_head/get_tail
// ( and other bugs ) per suggestion of Jens Maurer
// simplified element type accessors + bug fix (Jeremy Siek)
// Several changes/additions according to suggestions by Doug Gregor,
// William Kempf, Vesa Karvonen, John Max Skaller, Ed Brey, Beman Davis,
// David Abrahams.
// -----------------------------------------------------------------
#ifndef BOOST_TUPLE_BASIC_HPP
#define BOOST_TUPLE_BASIC_HPP
#include <utility> // needed for the assignment from pair to tuple
#include "boost/type_traits/cv_traits.hpp"
namespace boost {
// -- null_type --------------------------------------------------------
struct null_type {};
// a helper function to provide a const null_type type temporary
namespace detail {
namespace tuples {
inline const null_type cnull_type() { return null_type(); }
} // end tuples
} // end detail
// - cons forward declaration -----------------------------------------------
template <class HT, class TT>
struct cons;
// - tuple forward declaration -----------------------------------------------
template <
class T0 = null_type, class T1 = null_type, class T2 = null_type,
class T3 = null_type, class T4 = null_type, class T5 = null_type,
class T6 = null_type, class T7 = null_type, class T8 = null_type,
class T9 = null_type>
class tuple;
// tuple_length forward declaration
template<class T> struct tuple_length;
namespace detail {
namespace tuples {
// -- generate error template, referencing to non-existing members of this
// template is used to produce compilation errors intentionally
template<class T>
class generate_error;
// tuple default argument wrappers ---------------------------------------
// Work for non-reference types, intentionally not for references
template <class T>
struct default_arg {
// Non-class temporaries cannot have qualifiers.
// To prevent f to return for example const int, we remove cv-qualifiers
// from all temporaries.
static typename boost::remove_cv<T>::type f() { return T(); }
};
template <class T>
struct default_arg<T&> {
static T& f() {
return generate_error<T>::no_default_values_for_reference_types;
}
};
// - cons getters --------------------------------------------------------
// called: element<N>::get<RETURN_TYPE>(aTuple)
template< int N >
struct element {
template<class RET, class HT, class TT >
inline static RET get(const cons<HT, TT>& t)
{
return element<N-1>::template get<RET>(t.tail);
}
template<class RET, class HT, class TT >
inline static RET get(cons<HT, TT>& t)
{
return element<N-1>::template get<RET>(t.tail);
}
};
template<>
struct element<0> {
template<class RET, class HT, class TT>
inline static RET get(const cons<HT, TT>& t)
{
return t.head;
}
template<class RET, class HT, class TT>
inline static RET get(cons<HT, TT>& t)
{
return t.head;
}
};
} // end of namespace tuples
} // end of namespace detail
// -cons type accessors ----------------------------------------
// typename tuple_element<N,T>::type gets the type of the
// Nth element ot T, first element is at index 0
// -------------------------------------------------------
template<int N, class T>
struct tuple_element
{
private:
typedef typename T::tail_type Next;
public:
typedef typename tuple_element<N-1, Next>::type type;
};
template<class T>
struct tuple_element<0,T>
{
typedef typename T::head_type type;
};
// -get function templates -----------------------------------------------
// Usage: get<N>(aTuple)
// -- some traits classes for get functions
// access traits lifted from detail namespace to be part of the interface,
// (Joel de Guzman's suggestion). Rationale: get functions are part of the
// interface, so should the way to express their return types be.
template <class T> struct tuple_access_traits {
typedef const T& const_type;
typedef T& non_const_type;
typedef const typename boost::remove_cv<T>::type& parameter_type;
// used as the tuple constructors parameter types
// Rationale: non-reference tuple element types can be cv-qualified.
// It should be possible to initialize such types with temporaries,
// and when binding temporaries to references, the reference must
// be non-volatile and const. 8.5.3. (5)
};
template <class T> struct tuple_access_traits<T&> {
typedef T& const_type;
typedef T& non_const_type;
typedef T& parameter_type;
};
// get function for non-const cons-lists, returns a reference to the element
template<int N, class HT, class TT>
inline typename tuple_access_traits<
typename tuple_element<N, cons<HT, TT> >::type
>::non_const_type
get(cons<HT, TT>& c) {
return detail::tuples::element<N>::template
get<
typename tuple_access_traits<
typename tuple_element<N, cons<HT, TT> >::type
>::non_const_type>(c);
}
// get function for const cons-lists, returns a const reference to
// the element. If the element is a reference, returns the reference
// as such (that is, can return a non-const reference)
template<int N, class HT, class TT>
inline typename tuple_access_traits<
typename tuple_element<N, cons<HT, TT> >::type
>::const_type
get(const cons<HT, TT>& c) {
return detail::tuples::element<N>::template
get<
typename tuple_access_traits<
typename tuple_element<N, cons<HT, TT> >::type
>::const_type>(c);
}
// -- the cons template --------------------------------------------------
template <class HT, class TT>
struct cons {
typedef HT head_type;
typedef TT tail_type;
head_type head;
tail_type tail;
typename tuple_access_traits<head_type>::non_const_type get_head() { return head; }
typename tuple_access_traits<tail_type>::non_const_type get_tail() { return tail; }
typename tuple_access_traits<head_type>::const_type get_head() const { return head; }
typename tuple_access_traits<tail_type>::const_type get_tail() const { return tail; }
template <class T1, class T2, class T3, class T4, class T5,
class T6, class T7, class T8, class T9, class T10>
cons( T1& t1, T2& t2, T3& t3, T4& t4, T5& t5,
T6& t6, T7& t7, T8& t8, T9& t9, T10& t10 )
: head (t1) , tail (t2, t3, t4, t5, t6, t7, t8, t9, t10, detail::tuples::cnull_type()) {}
template <class HT2, class TT2>
cons( const cons<HT2, TT2>& u ) : head(u.head), tail(u.tail) {}
template <class HT2, class TT2>
cons& operator=( const cons<HT2, TT2>& u ) {
head=u.head; tail=u.tail; return *this;
}
// must define assignment operator explicitly, implicit version is
// illformed if HT is a reference (12.8. (12))
cons& operator=(const cons& u) {
head = u.head; tail = u.tail; return *this;
}
template <class T1, class T2>
cons& operator=( const std::pair<T1, T2>& u ) {
BOOST_STATIC_ASSERT(tuple_length<cons>::value == 2); // check length = 2
head = u.first; tail.head = u.second; return *this;
}
// get member functions (non-const and const)
template <int N>
typename tuple_access_traits<
typename tuple_element<N, cons<HT, TT> >::type
>::non_const_type
get() {
return boost::get<N>(*this); // delegate to non-member get
}
template <int N>
typename tuple_access_traits<
typename tuple_element<N, cons<HT, TT> >::type
>::const_type
get() const {
return boost::get<N>(*this); // delegate to non-member get
}
};
template <class HT>
struct cons<HT, null_type> {
typedef HT head_type;
typedef null_type tail_type;
head_type head;
typename tuple_access_traits<head_type>::non_const_type get_head() { return head; }
null_type get_tail() { return null_type(); }
typename tuple_access_traits<head_type>::const_type get_head() const { return head; }
const null_type get_tail() const { return null_type(); }
template<class T1>
cons( T1& t1, const null_type&, const null_type&, const null_type&, const null_type&,
const null_type&, const null_type&, const null_type&, const null_type&, const null_type&)
: head (t1) {}
template <class HT2>
cons( const cons<HT2, null_type>& u ) : head(u.head) {}
template <class HT2>
cons& operator=(const cons<HT2, null_type>& u ) { head = u.head; return *this; }
// must define assignment operator explicitely, implicit version
// is illformed if HT is a reference
cons& operator=(const cons& u) { head = u.head; return *this; }
template <int N>
typename tuple_access_traits<
typename tuple_element<N, cons>::type
>::non_const_type
get() {
return boost::get<N>(*this);
}
template <int N>
typename tuple_access_traits<
typename tuple_element<N, cons>::type
>::const_type
get() const {
return boost::get<N>(*this);
}
};
// templates for finding out the length of the tuple -------------------
template<class T>
struct tuple_length {
BOOST_STATIC_CONSTANT(int, value = 1 + tuple_length<typename T::tail_type>::value);
};
template<>
struct tuple_length<null_type> {
BOOST_STATIC_CONSTANT(int, value = 0);
};
namespace detail {
namespace tuples {
// Tuple to cons mapper --------------------------------------------------
template <class T0, class T1, class T2, class T3, class T4,
class T5, class T6, class T7, class T8, class T9>
struct map_tuple_to_cons
{
typedef cons<T0,
typename map_tuple_to_cons<T1, T2, T3, T4, T5,
T6, T7, T8, T9, null_type>::type
> type;
};
template <class T0>
struct map_tuple_to_cons<T0, null_type, null_type, null_type, null_type, null_type, null_type, null_type, null_type, null_type>
{
typedef cons<T0, null_type> type;
};
// The empty tuple is a null_type
template <>
struct map_tuple_to_cons<null_type, null_type, null_type, null_type, null_type, null_type, null_type, null_type, null_type, null_type>
{
typedef null_type type;
};
} // end tuples
} // end detail
// -------------------------------------------------------------------
// -- tuple ------------------------------------------------------
template <class T0, class T1, class T2, class T3, class T4,
class T5, class T6, class T7, class T8, class T9>
class tuple :
public detail::tuples::map_tuple_to_cons<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>::type
{
public:
typedef typename
detail::tuples::map_tuple_to_cons<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>::type inherited;
typedef typename inherited::head_type head_type;
typedef typename inherited::tail_type tail_type;
// tuple_access_traits<T>::parameter_type takes non-reference types as const T&
explicit tuple(
typename tuple_access_traits<T0>::parameter_type t0
= detail::tuples::default_arg<T0>::f(),
typename tuple_access_traits<T1>::parameter_type t1
= detail::tuples::default_arg<T1>::f(),
typename tuple_access_traits<T2>::parameter_type t2
= detail::tuples::default_arg<T2>::f(),
typename tuple_access_traits<T3>::parameter_type t3
= detail::tuples::default_arg<T3>::f(),
typename tuple_access_traits<T4>::parameter_type t4
= detail::tuples::default_arg<T4>::f(),
typename tuple_access_traits<T5>::parameter_type t5
= detail::tuples::default_arg<T5>::f(),
typename tuple_access_traits<T6>::parameter_type t6
= detail::tuples::default_arg<T6>::f(),
typename tuple_access_traits<T7>::parameter_type t7
= detail::tuples::default_arg<T7>::f(),
typename tuple_access_traits<T8>::parameter_type t8
= detail::tuples::default_arg<T8>::f(),
typename tuple_access_traits<T9>::parameter_type t9
= detail::tuples::default_arg<T9>::f())
: inherited(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9) {}
template<class U1, class U2>
tuple(const cons<U1, U2>& p) : inherited(p) {}
template <class U1, class U2>
tuple& operator=(const cons<U1, U2>& k) {
inherited::operator=(k);
return *this;
}
template <class U1, class U2>
tuple& operator=(const std::pair<U1, U2>& k) {
BOOST_STATIC_ASSERT(tuple_length<tuple>::value == 2);// check_length = 2
this->head = k.first;
this->tail.head = k.second;
return *this;
}
};
// Swallows any assignment (by Doug Gregor)
namespace detail {
namespace tuples {
struct swallow_assign {
template<typename T>
swallow_assign& operator=(const T&) {
return *this;
}
};
} // namespace tuples
} // namespace detail
// "ignore" allows tuple positions to be ignored when using "tie".
namespace {
detail::tuples::swallow_assign ignore;
}
// ---------------------------------------------------------------------------
// The call_traits for make_tuple
// Honours the reference_wrapper class.
// Must be instantiated with plain or const plain types (not with references)
// from template<class T> foo(const T& t) : make_tuple_traits<const T>::type
// from template<class T> foo(T& t) : make_tuple_traits<T>::type
// Conversions:
// T -> T,
// references -> compile_time_error
// reference_wrapper<T> -> T&
// const reference_wrapper<T> -> T&
// array -> const ref array
template<class T>
struct make_tuple_traits {
typedef T type;
// commented away, see below (JJ)
// typedef typename IF<
// boost::is_function<T>::value,
// T&,
// T>::RET type;
};
// The is_function test was there originally for plain function types,
// which can't be stored as such (we must either store them as references or
// pointers). Such a type could be formed if make_tuple was called with a
// reference to a function.
// But this would mean that a const qualified function type was formed in
// the make_tuple function and hence make_tuple can't take a function
// reference as a parameter, and thus T can't be a function type.
// So is_function test was removed.
// (14.8.3. says that type deduction fails if a cv-qualified function type
// is created. (It only applies for the case of explicitly specifying template
// args, though?)) (JJ)
template<class T>
struct make_tuple_traits<T&> {
typedef typename
detail::tuples::generate_error<T&>::
do_not_use_with_reference_type error;
};
// Arrays can't be stored as plain types; convert them to references.
// All arrays are converted to const. This is because make_tuple takes its
// parameters as const T& and thus the knowledge of the potential
// non-constness of actual argument is lost.
template<class T, int n> struct make_tuple_traits <T[n]> {
typedef const T (&type)[n];
};
template<class T, int n>
struct make_tuple_traits<const T[n]> {
typedef const T (&type)[n];
};
template<class T, int n> struct make_tuple_traits<volatile T[n]> {
typedef const volatile T (&type)[n];
};
template<class T, int n>
struct make_tuple_traits<const volatile T[n]> {
typedef const volatile T (&type)[n];
};
template<class T>
struct make_tuple_traits<reference_wrapper<T> >{
typedef T& type;
};
template<class T>
struct make_tuple_traits<const reference_wrapper<T> >{
typedef T& type;
};
namespace detail {
namespace tuples {
// a helper traits to make the make_tuple functions shorter (Vesa Karvonen's
// suggestion)
template <
class T0 = null_type, class T1 = null_type, class T2 = null_type,
class T3 = null_type, class T4 = null_type, class T5 = null_type,
class T6 = null_type, class T7 = null_type, class T8 = null_type,
class T9 = null_type
>
struct make_tuple_mapper {
typedef
tuple<typename make_tuple_traits<T0>::type,
typename make_tuple_traits<T1>::type,
typename make_tuple_traits<T2>::type,
typename make_tuple_traits<T3>::type,
typename make_tuple_traits<T4>::type,
typename make_tuple_traits<T5>::type,
typename make_tuple_traits<T6>::type,
typename make_tuple_traits<T7>::type,
typename make_tuple_traits<T8>::type,
typename make_tuple_traits<T9>::type> type;
};
} // end tuples
} // end detail
// -make_tuple function templates -----------------------------------
//tuple<> inline make_tuple() {
// return tuple<>();
//}
template<class T0>
boost::detail::tuples::make_tuple_mapper<T0>::type
inline make_tuple(const T0& t0) {
return boost::detail::tuples::make_tuple_mapper<T0>::type(t0);
}
template<class T0, class T1>
boost::detail::tuples::make_tuple_mapper<T0, T1>::type
inline make_tuple(const T0& t0, const T1& t1) {
return boost::detail::tuples::make_tuple_mapper<T0, T1>::type(t0, t1);
}
template<class T0, class T1, class T2>
boost::detail::tuples::make_tuple_mapper<T0, T1, T2>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2) {
return boost::detail::tuples::make_tuple_mapper<T0, T1, T2>::type(t0, t1, t2);
}
template<class T0, class T1, class T2, class T3>
boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2, const T3& t3) {
return boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3>::type
(t0, t1, t2, t3);
}
template<class T0, class T1, class T2, class T3, class T4>
boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3, T4>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2, const T3& t3,
const T4& t4) {
return boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3, T4>::type
(t0, t1, t2, t3, t4);
}
template<class T0, class T1, class T2, class T3, class T4, class T5>
boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3, T4, T5>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2, const T3& t3,
const T4& t4, const T5& t5) {
return boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3, T4, T5>::type
(t0, t1, t2, t3, t4, t5);
}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6>
boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3, T4, T5, T6>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2, const T3& t3,
const T4& t4, const T5& t5, const T6& t6) {
return boost::detail::tuples::make_tuple_mapper
<T0, T1, T2, T3, T4, T5, T6>::type
(t0, t1, t2, t3, t4, t5, t6);
}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6,
class T7>
boost::detail::tuples::make_tuple_mapper<T0, T1, T2, T3, T4, T5, T6, T7>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2, const T3& t3,
const T4& t4, const T5& t5, const T6& t6, const T7& t7) {
return boost::detail::tuples::make_tuple_mapper
<T0, T1, T2, T3, T4, T5, T6, T7>::type
(t0, t1, t2, t3, t4, t5, t6, t7);
}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6,
class T7, class T8>
boost::detail::tuples::make_tuple_mapper
<T0, T1, T2, T3, T4, T5, T6, T7, T8>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2, const T3& t3,
const T4& t4, const T5& t5, const T6& t6, const T7& t7,
const T8& t8) {
return boost::detail::tuples::make_tuple_mapper
<T0, T1, T2, T3, T4, T5, T6, T7, T8>::type
(t0, t1, t2, t3, t4, t5, t6, t7, t8);
}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6,
class T7, class T8, class T9>
boost::detail::tuples::make_tuple_mapper
<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>::type
inline make_tuple(const T0& t0, const T1& t1, const T2& t2, const T3& t3,
const T4& t4, const T5& t5, const T6& t6, const T7& t7,
const T8& t8, const T9& t9) {
return boost::detail::tuples::make_tuple_mapper
<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>::type
(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9);
}
// Tie function templates -------------------------------------------------
template<class T1>
tuple<T1&> inline tie(T1& t1) {
return tuple<T1&> (t1);
}
template<class T1, class T2>
tuple<T1&, T2&> inline tie(T1& t1, T2& t2) {
return tuple<T1&, T2&> (t1, t2);
}
template<class T1, class T2, class T3>
tuple<T1&, T2&, T3&> inline tie(T1& t1, T2& t2, T3& t3) {
return tuple<T1&, T2&, T3&> (t1, t2, t3);
}
template<class T1, class T2, class T3, class T4>
tuple<T1&, T2&, T3&, T4&> inline tie(T1& t1, T2& t2, T3& t3, T4& t4) {
return tuple<T1&, T2&, T3&, T4&> (t1, t2, t3, t4);
}
template<class T1, class T2, class T3, class T4, class T5>
tuple<T1&, T2&, T3&, T4&, T5&>
inline tie(T1& t1, T2& t2, T3& t3, T4& t4, T5& t5) {
return tuple<T1&, T2&, T3&, T4&, T5&> (t1, t2, t3, t4, t5);
}
template<class T1, class T2, class T3, class T4, class T5, class T6>
tuple<T1&, T2&, T3&, T4&, T5&, T6&>
inline tie(T1& t1, T2& t2, T3& t3, T4& t4, T5& t5, T6& t6) {
return tuple<T1&, T2&, T3&, T4&, T5&, T6&> (t1, t2, t3, t4, t5, t6);
}
template<class T1, class T2, class T3, class T4, class T5, class T6, class T7>
tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&>
inline tie(T1& t1, T2& t2, T3& t3, T4& t4, T5& t5, T6& t6, T7& t7) {
return tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&> (t1, t2, t3, t4, t5, t6, t7);
}
template<class T1, class T2, class T3, class T4, class T5, class T6, class T7,
class T8>
tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&, T8&>
inline tie(T1& t1, T2& t2, T3& t3, T4& t4, T5& t5, T6& t6, T7& t7, T8& t8) {
return tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&, T8&>
(t1, t2, t3, t4, t5, t6, t7, t8);
}
template<class T1, class T2, class T3, class T4, class T5, class T6, class T7,
class T8, class T9>
tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&, T8&, T9&>
inline tie(T1& t1, T2& t2, T3& t3, T4& t4, T5& t5, T6& t6, T7& t7, T8& t8,
T9& t9) {
return tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&, T8&, T9&>
(t1, t2, t3, t4, t5, t6, t7, t8, t9);
}
template<class T1, class T2, class T3, class T4, class T5, class T6, class T7,
class T8, class T9, class T10>
tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&, T8&, T9&, T10&>
inline tie(T1& t1, T2& t2, T3& t3, T4& t4, T5& t5, T6& t6, T7& t7, T8& t8,
T9& t9, T10& t10) {
return tuple<T1&, T2&, T3&, T4&, T5&, T6&, T7&, T8&, T9&, T10&>
(t1, t2, t3, t4, t5, t6, t7, t8, t9, t10);
}
} // end of namespace boost
#endif // BOOST_TUPLE_BASIC_HPP

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// - tuple_basic_no_partial_spec.hpp -----------------------------------------
// Copyright (C) 1999, 2000 Jaakko J<>rvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2001 Doug Gregor (gregod@rpi.edu)
// Copyright (C) 2001 Gary Powell (gary.powell@sierra.com)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.
// For more information, see http://www.boost.org or http://lambda.cs.utu.fi
// Revision History
// 14 02 01 Remove extra ';'. Also, fixed 10-parameter to make_tuple. (DG)
// 10 02 01 Fixed "null_type" constructors.
// Implemented comparison operators globally.
// Hide element_type_ref and element_type_const_ref.
// (DG).
// 09 02 01 Extended to tuples of length 10. Changed comparison for
// operator<()
// to the same used by std::pair<>, added cnull_type() (GP)
// 03 02 01 Initial Version from original tuple.hpp code by JJ. (DG)
// -----------------------------------------------------------------
#ifndef BOOST_TUPLE_BASIC_NO_PARTIAL_SPEC_HPP
#define BOOST_TUPLE_BASIC_NO_PARTIAL_SPEC_HPP
#include "boost/type_traits.hpp"
#if defined BOOST_MSVC
#pragma warning(disable:4518) // storage-class or type specifier(s) unexpected here; ignored
#pragma warning(disable:4181) // qualifier applied to reference type ignored
#pragma warning(disable:4227) // qualifier applied to reference type ignored
#endif
namespace boost {
// null_type denotes the end of a list built with "cons"
struct null_type
{
null_type() {}
null_type(const null_type&, const null_type&) {}
};
// a helper function to provide a const null_type type temporary
inline const null_type cnull_type() { return null_type(); }
namespace detail {
namespace tuples {
// Takes a pointer and routes all assignments to whatever it points to
template<typename T>
struct assign_to_pointee
{
public:
explicit assign_to_pointee(T* p) : ptr(p) {}
template<typename Other>
assign_to_pointee& operator=(const Other& other)
{
*ptr = other;
return *this;
}
private:
T* ptr;
};
// Swallows any assignment
struct swallow_assign
{
template<typename T>
swallow_assign& operator=(const T&)
{
return *this;
}
};
} // end of namespace tuples
} // end of namespace detail
// cons builds a heterogenous list of types
template<typename Head, typename Tail = null_type>
struct cons
{
typedef cons self_type;
typedef Head head_type;
typedef Tail tail_type;
head_type head;
tail_type tail;
typename boost::add_reference<head_type>::type get_head() { return head; }
typename boost::add_reference<tail_type>::type get_tail() { return tail; }
typename boost::add_reference<const head_type>::type get_head() const { return head; }
typename boost::add_reference<const tail_type>::type get_tail() const { return tail; }
template<typename Other>
explicit cons(const Other& other) : head(other.head), tail(other.tail)
{
}
#if defined BOOST_MSVC
explicit cons(const head_type& h /* = head_type() */, // causes MSVC 6.5 to barf.
const tail_type& t = tail_type()) :
head(h), tail(t)
{
}
#else
explicit cons(const head_type& h = head_type(),
const tail_type& t = tail_type()) :
head(h), tail(t)
{
}
#endif
template<typename Other>
cons& operator=(const Other& other)
{
head = other.head;
tail = other.tail;
return *this;
}
};
namespace detail {
namespace tuples {
// Determines if the parameter is null_type
template<typename T> struct is_null_type { enum { RET = 0 }; };
template<> struct is_null_type<null_type> { enum { RET = 1 }; };
/* Build a cons structure from the given Head and Tail. If both are null_type,
return null_type. */
template<typename Head, typename Tail>
struct build_cons
{
private:
enum { tail_is_null_type = is_null_type<Tail>::RET };
public:
typedef cons<Head, Tail> RET;
};
template<>
struct build_cons<null_type, null_type>
{
typedef null_type RET;
};
// Map the N elements of a tuple into a cons list
template<
typename T1,
typename T2 = null_type,
typename T3 = null_type,
typename T4 = null_type,
typename T5 = null_type,
typename T6 = null_type,
typename T7 = null_type,
typename T8 = null_type,
typename T9 = null_type,
typename T10 = null_type
>
struct map_tuple_to_cons
{
typedef typename detail::tuples::build_cons<T10, null_type >::RET cons10;
typedef typename detail::tuples::build_cons<T9, cons10>::RET cons9;
typedef typename detail::tuples::build_cons<T8, cons9>::RET cons8;
typedef typename detail::tuples::build_cons<T7, cons8>::RET cons7;
typedef typename detail::tuples::build_cons<T6, cons7>::RET cons6;
typedef typename detail::tuples::build_cons<T5, cons6>::RET cons5;
typedef typename detail::tuples::build_cons<T4, cons5>::RET cons4;
typedef typename detail::tuples::build_cons<T3, cons4>::RET cons3;
typedef typename detail::tuples::build_cons<T2, cons3>::RET cons2;
typedef typename detail::tuples::build_cons<T1, cons2>::RET cons1;
};
// Workaround the lack of partial specialization in some compilers
template<int N>
struct _element_type
{
template<typename Tuple>
struct inner
{
private:
typedef typename Tuple::tail_type tail_type;
typedef _element_type<N-1> next_elt_type;
public:
typedef typename _element_type<N-1>::template inner<tail_type>::RET RET;
};
};
template<>
struct _element_type<0>
{
template<typename Tuple>
struct inner
{
typedef typename Tuple::head_type RET;
};
};
} // detail
} // tuples
// Return the Nth type of the given Tuple
template<int N, typename Tuple>
struct tuple_element
{
private:
typedef detail::tuples::_element_type<N> nth_type;
public:
typedef typename nth_type::template inner<Tuple>::RET RET;
typedef RET type;
};
namespace detail {
namespace tuples {
// Return a reference to the Nth type of the given Tuple
template<int N, typename Tuple>
struct tuple_element_ref
{
private:
typedef typename tuple_element<N, Tuple>::RET elt_type;
public:
typedef typename add_reference<elt_type>::type RET;
typedef RET type;
};
// Return a const reference to the Nth type of the given Tuple
template<int N, typename Tuple>
struct tuple_element_const_ref
{
private:
typedef typename tuple_element<N, Tuple>::RET elt_type;
public:
typedef typename add_reference<const elt_type>::type RET;
typedef RET type;
};
}
}
// Get length of this tuple
template<typename Tuple>
struct tuple_length
{
enum { value = 1 + tuple_length<typename Tuple::tail_type>::value };
};
template<>
struct tuple_length<null_type>
{
enum { value = 0 };
};
// Reference the Nth element in a tuple and retrieve it with "get"
template<int N>
struct element
{
template<typename Tuple>
static inline
typename detail::tuples::tuple_element_ref<N, Tuple>::RET
get(Tuple& t)
{
return element<N-1>::get(t.tail);
}
template<typename Tuple>
static inline
typename detail::tuples::tuple_element_const_ref<N, Tuple>::RET
get(const Tuple& t)
{
return element<N-1>::get(t.tail);
}
};
template<>
struct element<0>
{
template<typename Tuple>
static inline
typename add_reference<typename Tuple::head_type>::type
get(Tuple& t)
{
return t.head;
}
template<typename Tuple>
static inline
typename add_reference<const typename Tuple::head_type>::type
get(const Tuple& t)
{
return t.head;
}
};
// tuple class
template<
typename T1,
typename T2 = null_type,
typename T3 = null_type,
typename T4 = null_type,
typename T5 = null_type,
typename T6 = null_type,
typename T7 = null_type,
typename T8 = null_type,
typename T9 = null_type,
typename T10 = null_type
>
class tuple :
public detail::tuples::map_tuple_to_cons<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>::cons1
{
private:
typedef detail::tuples::map_tuple_to_cons<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> mapped_tuple;
typedef typename mapped_tuple::cons10 cons10;
typedef typename mapped_tuple::cons9 cons9;
typedef typename mapped_tuple::cons8 cons8;
typedef typename mapped_tuple::cons7 cons7;
typedef typename mapped_tuple::cons6 cons6;
typedef typename mapped_tuple::cons5 cons5;
typedef typename mapped_tuple::cons4 cons4;
typedef typename mapped_tuple::cons3 cons3;
typedef typename mapped_tuple::cons2 cons2;
typedef typename mapped_tuple::cons1 cons1;
public:
typedef tuple self_type;
explicit tuple(const T1& t1 = T1(),
const T2& t2 = T2(),
const T3& t3 = T3(),
const T4& t4 = T4(),
const T5& t5 = T5(),
const T6& t6 = T6(),
const T7& t7 = T7(),
const T8& t8 = T8(),
const T9& t9 = T9(),
const T10& t10 = T10()) :
cons1(t1, cons2(t2, cons3(t3, cons4(t4, cons5(t5, cons6(t6,cons7(t7,cons8(t8,cons9(t9,cons10(t10))))))))))
{
}
template<typename Other>
explicit tuple(const Other& other) : cons1(other)
{
}
template<typename Other>
self_type& operator=(const Other& other)
{
this->head = other.head;
this->tail = other.tail;
return *this;
}
};
// Retrieve the Nth element in the typle
template<int N, typename Tuple>
typename detail::tuples::tuple_element_ref<N, Tuple>::RET
get(Tuple& t)
{
return element<N>::get(t);
}
// Retrieve the Nth element in the typle
template<int N, typename Tuple>
typename detail::tuples::tuple_element_const_ref<N, Tuple>::RET
get(const Tuple& t)
{
return element<N>::get(t);
}
// Make a tuple
template<typename T1>
inline
tuple<T1>
make_tuple(const T1& t1)
{
return tuple<T1>(t1);
}
// Make a tuple
template<typename T1, typename T2>
inline
tuple<T1, T2>
make_tuple(const T1& t1, const T2& t2)
{
return tuple<T1, T2>(t1, t2);
}
// Make a tuple
template<typename T1, typename T2, typename T3>
inline
tuple<T1, T2, T3>
make_tuple(const T1& t1, const T2& t2, const T3& t3)
{
return tuple<T1, T2, T3>(t1, t2, t3);
}
// Make a tuple
template<typename T1, typename T2, typename T3, typename T4>
inline
tuple<T1, T2, T3, T4>
make_tuple(const T1& t1, const T2& t2, const T3& t3, const T4& t4)
{
return tuple<T1, T2, T3, T4>(t1, t2, t3, t4);
}
// Make a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5>
inline
tuple<T1, T2, T3, T4, T5>
make_tuple(const T1& t1, const T2& t2, const T3& t3, const T4& t4, const T5& t5)
{
return tuple<T1, T2, T3, T4, T5>(t1, t2, t3, t4, t5);
}
// Make a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
inline
tuple<T1, T2, T3, T4, T5, T6>
make_tuple(const T1& t1, const T2& t2, const T3& t3, const T4& t4, const T5& t5, const T6& t6)
{
return tuple<T1, T2, T3, T4, T5, T6>(t1, t2, t3, t4, t5, t6);
}
// Make a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
inline
tuple<T1, T2, T3, T4, T5, T6, T7>
make_tuple(const T1& t1, const T2& t2, const T3& t3, const T4& t4, const T5& t5, const T6& t6, const T7& t7)
{
return tuple<T1, T2, T3, T4, T5, T6, T7>(t1, t2, t3, t4, t5, t6, t7);
}
// Make a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
inline
tuple<T1, T2, T3, T4, T5, T6, T7, T8>
make_tuple(const T1& t1, const T2& t2, const T3& t3, const T4& t4, const T5& t5, const T6& t6, const T7& t7, const T8& t8)
{
return tuple<T1, T2, T3, T4, T5, T6, T7, T8>(t1, t2, t3, t4, t5, t6, t7, t8);
}
// Make a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
inline
tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9>
make_tuple(const T1& t1, const T2& t2, const T3& t3, const T4& t4, const T5& t5, const T6& t6, const T7& t7, const T8& t8, const T9& t9)
{
return tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9>(t1, t2, t3, t4, t5, t6, t7, t8, t9);
}
// Make a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9, typename T10>
inline
tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>
make_tuple(const T1& t1, const T2& t2, const T3& t3, const T4& t4, const T5& t5, const T6& t6, const T7& t7, const T8& t8, const T9& t9, const T10& t10)
{
return tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(t1, t2, t3, t4, t5, t6, t7, t8, t9, t10);
}
// Tie variables into a tuple
template<typename T1>
inline
tuple<detail::tuples::assign_to_pointee<T1> >
tie(T1& t1)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1));
}
// Tie variables into a tuple
template<typename T1, typename T2>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2> >
tie(T1& t1, T2& t2)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3> >
tie(T1& t1, T2& t2, T3& t3)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3>,
detail::tuples::assign_to_pointee<T4> >
tie(T1& t1, T2& t2, T3& t3, T4& t4)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3),
detail::tuples::assign_to_pointee<T4>(&t4));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3>,
detail::tuples::assign_to_pointee<T4>,
detail::tuples::assign_to_pointee<T5> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3),
detail::tuples::assign_to_pointee<T4>(&t4),
detail::tuples::assign_to_pointee<T5>(&t5));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3>,
detail::tuples::assign_to_pointee<T4>,
detail::tuples::assign_to_pointee<T5>,
detail::tuples::assign_to_pointee<T6> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3),
detail::tuples::assign_to_pointee<T4>(&t4),
detail::tuples::assign_to_pointee<T6>(&t5),
detail::tuples::assign_to_pointee<T5>(&t6));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3>,
detail::tuples::assign_to_pointee<T4>,
detail::tuples::assign_to_pointee<T5>,
detail::tuples::assign_to_pointee<T6>,
detail::tuples::assign_to_pointee<T7> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6, T7 &t7)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3),
detail::tuples::assign_to_pointee<T4>(&t4),
detail::tuples::assign_to_pointee<T5>(&t5),
detail::tuples::assign_to_pointee<T6>(&t6),
detail::tuples::assign_to_pointee<T7>(&t7));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3>,
detail::tuples::assign_to_pointee<T4>,
detail::tuples::assign_to_pointee<T5>,
detail::tuples::assign_to_pointee<T6>,
detail::tuples::assign_to_pointee<T7>,
detail::tuples::assign_to_pointee<T8> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6, T7 &t7, T8 &t8)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3),
detail::tuples::assign_to_pointee<T4>(&t4),
detail::tuples::assign_to_pointee<T5>(&t5),
detail::tuples::assign_to_pointee<T6>(&t6),
detail::tuples::assign_to_pointee<T7>(&t7),
detail::tuples::assign_to_pointee<T8>(&t8));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3>,
detail::tuples::assign_to_pointee<T4>,
detail::tuples::assign_to_pointee<T5>,
detail::tuples::assign_to_pointee<T6>,
detail::tuples::assign_to_pointee<T7>,
detail::tuples::assign_to_pointee<T8>,
detail::tuples::assign_to_pointee<T9> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6, T7 &t7, T8 &t8, T9 &t9)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3),
detail::tuples::assign_to_pointee<T4>(&t4),
detail::tuples::assign_to_pointee<T5>(&t5),
detail::tuples::assign_to_pointee<T6>(&t6),
detail::tuples::assign_to_pointee<T7>(&t7),
detail::tuples::assign_to_pointee<T8>(&t8),
detail::tuples::assign_to_pointee<T9>(&t9));
}
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9, typename T10>
inline
tuple<detail::tuples::assign_to_pointee<T1>,
detail::tuples::assign_to_pointee<T2>,
detail::tuples::assign_to_pointee<T3>,
detail::tuples::assign_to_pointee<T4>,
detail::tuples::assign_to_pointee<T5>,
detail::tuples::assign_to_pointee<T6>,
detail::tuples::assign_to_pointee<T7>,
detail::tuples::assign_to_pointee<T8>,
detail::tuples::assign_to_pointee<T9>,
detail::tuples::assign_to_pointee<T10> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6, T7 &t7, T8 &t8, T9 &t9, T10 &t10)
{
return make_tuple(detail::tuples::assign_to_pointee<T1>(&t1),
detail::tuples::assign_to_pointee<T2>(&t2),
detail::tuples::assign_to_pointee<T3>(&t3),
detail::tuples::assign_to_pointee<T4>(&t4),
detail::tuples::assign_to_pointee<T5>(&t5),
detail::tuples::assign_to_pointee<T6>(&t6),
detail::tuples::assign_to_pointee<T7>(&t7),
detail::tuples::assign_to_pointee<T8>(&t8),
detail::tuples::assign_to_pointee<T9>(&t9),
detail::tuples::assign_to_pointee<T10>(&t10));
}
// "ignore" allows tuple positions to be ignored when using "tie".
namespace {
detail::tuples::swallow_assign ignore;
}
} // namespace boost
#endif // BOOST_TUPLE_BASIC_NO_PARTIAL_SPEC_HPP

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// -- reference_wrappers - Boost Tuple Library -----------------------------
// Copyright (C) 1999, 2000 Jaakko J<>rvi (jaakko.jarvi@cs.utu.fi)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.
//
// For more information, see http://www.boost.org
// -----------------------------------------------------------------
#ifndef BOOST_TUPLE_REFERENCE_WRAPPERS_HPP
#define BOOST_TUPLE_REFERENCE_WRAPPERS_HPP
namespace boost {
// reference wrappers -------------------------------------------------------
// These wrappers are handle classes that hold references to objects.
// reference_wrapper is used to specify that a tuple element should be
// a reference to the wrapped object - rather than a copy of it.
// The wrapper acts as a disguise for passing non-const reference
// parameters via a reference to const parameter.
template<class T>
class reference_wrapper {
T& x;
public:
explicit
reference_wrapper(T& t) : x(t) {}
operator T&() const { return x; }
};
// store as a reference to T
template<class T>
inline const reference_wrapper<T> ref(T& t) {
return reference_wrapper<T>(t);
}
// store as a reference to const T
template<class T>
inline const reference_wrapper<const T> cref(const T& t) {
return reference_wrapper<const T>(t);
}
} // end of namespace boost
#endif // BOOST_TUPLE_REFERENCE_WRAPPERS_HPP

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// tuple.hpp - Boost Tuple Library --------------------------------------
// Copyright (C) 1999, 2000 Jaakko J<>rvi (jaakko.jarvi@cs.utu.fi)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.
// For more information, see http://www.boost.org
// -----------------------------------------------------------------
#ifndef BOOST_TUPLE_HPP
#define BOOST_TUPLE_HPP
#include "boost/config.hpp"
#include "boost/static_assert.hpp"
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
// The MSVC version
#include "boost/tuple/detail/tuple_basic_no_partial_spec.hpp"
#else
// other compilers
#include "boost/tuple/reference_wrappers.hpp"
#include "boost/tuple/detail/tuple_basic.hpp"
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
#endif // BOOST_TUPLE_HPP

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// tuple_comparison.hpp -----------------------------------------------------
//
// Copyright (C) 2001 Jaakko J<>rvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2001 Gary Powell (gary.powell@sierra.com)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.
//
// For more information, see http://www.boost.org
//
// (The idea and first impl. of comparison operators was from Doug Gregor)
// -----------------------------------------------------------------
#ifndef BOOST_TUPLE_COMPARISON_HPP
#define BOOST_TUPLE_COMPARISON_HPP
#include "boost/tuple/tuple.hpp"
// -------------------------------------------------------------
// equality and comparison operators
//
// == and != compare tuples elementwise
// <, >, <= and >= use lexicographical ordering
//
// Any operator between tuples of different length fails at compile time
// No dependencies between operators are assumed
// (i.e. !(a<b) does not imply a>=b, a!=b does not imply a==b etc.
// so any weirdnesses of elementary operators are respected).
//
// -------------------------------------------------------------
namespace boost {
inline bool operator==(const null_type&, const null_type&) { return true; }
inline bool operator>=(const null_type&, const null_type&) { return true; }
inline bool operator<=(const null_type&, const null_type&) { return true; }
inline bool operator!=(const null_type&, const null_type&) { return false; }
inline bool operator<(const null_type&, const null_type&) { return false; }
inline bool operator>(const null_type&, const null_type&) { return false; }
namespace detail {
namespace tuples {
// comparison operators check statically the length of its operands and
// delegate the comparing task to the following functions. Hence
// the static check is only made once (should help the compiler).
// These functions assume tuples to be of the same length.
template<class T1, class T2>
inline bool eq(const T1& lhs, const T2& rhs) {
return lhs.get_head() == rhs.get_head() &&
eq(lhs.get_tail(), rhs.get_tail());
}
template<>
inline bool eq<null_type,null_type>(const null_type&, const null_type&) { return true; }
template<class T1, class T2>
inline bool neq(const T1& lhs, const T2& rhs) {
return lhs.get_head() != rhs.get_head() ||
neq(lhs.get_tail(), rhs.get_tail());
}
template<>
inline bool neq<null_type,null_type>(const null_type&, const null_type&) { return true; }
template<class T1, class T2>
inline bool lt(const T1& lhs, const T2& rhs) {
return lhs.get_head() < rhs.get_head() ||
!(rhs.get_head() < lhs.get_head()) &&
lt(lhs.get_tail(), rhs.get_tail());
}
template<>
inline bool lt<null_type,null_type>(const null_type&, const null_type&) { return false; }
template<class T1, class T2>
inline bool gt(const T1& lhs, const T2& rhs) {
return lhs.get_head() > rhs.get_head() ||
!(rhs.get_head() > lhs.get_head()) &&
gt(lhs.get_tail(), rhs.get_tail());
}
template<>
inline bool gt<null_type,null_type>(const null_type&, const null_type&) { return false; }
template<class T1, class T2>
inline bool lte(const T1& lhs, const T2& rhs) {
return lhs.get_head() <= rhs.get_head() &&
( !(rhs.get_head() <= lhs.get_head()) ||
lte(lhs.get_tail(), rhs.get_tail()));
}
template<>
inline bool lte<null_type,null_type>(const null_type&, const null_type&) { return true; }
template<class T1, class T2>
inline bool gte(const T1& lhs, const T2& rhs) {
return lhs.get_head() >= rhs.get_head() &&
( !(rhs.get_head() >= lhs.get_head()) ||
gte(lhs.get_tail(), rhs.get_tail()));
}
template<>
inline bool gte<null_type,null_type>(const null_type&, const null_type&) { return true; }
} // end of namespace tuples
} // end of namespace detail
// equal ----
template<class T1, class T2, class S1, class S2>
inline bool operator==(const cons<T1, T2>& lhs, const cons<S1, S2>& rhs)
{
// check that tuple_lengths are equal
BOOST_STATIC_ASSERT(tuple_length<T2>::value == tuple_length<S2>::value);
return detail::tuples::eq(lhs, rhs);
}
// not equal -----
template<class T1, class T2, class S1, class S2>
inline bool operator!=(const cons<T1, T2>& lhs, const cons<S1, S2>& rhs)
{
// check that tuple_lengths are equal
BOOST_STATIC_ASSERT(tuple_length<T2>::value == tuple_length<S2>::value);
return detail::tuples::neq(lhs, rhs);
}
// <
template<class T1, class T2, class S1, class S2>
inline bool operator<(const cons<T1, T2>& lhs, const cons<S1, S2>& rhs)
{
// check that tuple_lengths are equal
BOOST_STATIC_ASSERT(tuple_length<T2>::value == tuple_length<S2>::value);
return detail::tuples::lt(lhs, rhs);
}
// >
template<class T1, class T2, class S1, class S2>
inline bool operator>(const cons<T1, T2>& lhs, const cons<S1, S2>& rhs)
{
// check that tuple_lengths are equal
BOOST_STATIC_ASSERT(tuple_length<T2>::value == tuple_length<S2>::value);
return detail::tuples::gt(lhs, rhs);
}
// <=
template<class T1, class T2, class S1, class S2>
inline bool operator<=(const cons<T1, T2>& lhs, const cons<S1, S2>& rhs)
{
// check that tuple_lengths are equal
BOOST_STATIC_ASSERT(tuple_length<T2>::value == tuple_length<S2>::value);
return detail::tuples::lte(lhs, rhs);
}
// >=
template<class T1, class T2, class S1, class S2>
inline bool operator>=(const cons<T1, T2>& lhs, const cons<S1, S2>& rhs)
{
// check that tuple_lengths are equal
BOOST_STATIC_ASSERT(tuple_length<T2>::value == tuple_length<S2>::value);
return detail::tuples::gte(lhs, rhs);
}
} // end of namespace boost
#endif // BOOST_TUPLE_COMPARISON_HPP

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// tuple_io.hpp --------------------------------------------------------------
// Copyright (C) 2001 Jaakko J<>rvi (jaakko.jarvi@cs.utu.fi)
// 2001 Gary Powell (gary.powell@sierra.com)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.
// For more information, see http://www.boost.org
// ----------------------------------------------------------------------------
#ifndef BOOST_TUPLE_IO_HPP
#define BOOST_TUPLE_IO_HPP
// add to boost/config.hpp
// for now
# if defined __GNUC__
# if (__GNUC__ == 2 && __GNUC_MINOR__ <= 97)
#define BOOST_NO_TEMPLATED_STREAMS
#endif
#endif // __GNUC__
#if defined BOOST_NO_TEMPLATED_STREAMS
#include <iostream>
#else
#include <istream>
#include <ostream>
#endif
#include "boost/tuple/tuple.hpp"
namespace boost {
namespace detail {
namespace tuples {
class format_info {
public:
enum manipulator_type { open, close, delimiter };
BOOST_STATIC_CONSTANT(int, number_of_manipulators = delimiter + 1);
private:
static const int stream_index[number_of_manipulators];
format_info(const format_info&);
format_info();
public:
#if defined (BOOST_NO_TEMPLATED_STREAMS)
static char get_manipulator(std::ios& i, manipulator_type m) {
char c = static_cast<char>(i.iword(stream_index[m]));
// parentheses and space are the default manipulators
if (!c) {
switch(m) {
case open : c = '('; break;
case close : c = ')'; break;
case delimiter : c = ' '; break;
}
}
return c;
}
static void set_manipulator(std::ios& i, manipulator_type m, char c) {
i.iword(stream_index[m]) = static_cast<long>(c);
}
#else
template<class CharType, class CharTrait>
static CharType get_manipulator(std::basic_ios<CharType, CharTrait>& i,
manipulator_type m) {
// The manipulators are stored as long.
// A valid instanitation of basic_stream allows CharType to be any POD,
// hence, the static_cast may fail (it fails if long is not convertible
// to CharType
CharType c = static_cast<CharType>(i.iword(stream_index[m]) );
// parentheses and space are the default manipulators
if (!c) {
switch(m) {
case open : c = i.widen('('); break;
case close : c = i.widen(')'); break;
case delimiter : c = i.widen(' '); break;
}
}
return c;
}
template<class CharType, class CharTrait>
static void set_manipulator(std::basic_ios<CharType, CharTrait>& i,
manipulator_type m, CharType c) {
// The manipulators are stored as long.
// A valid instanitation of basic_stream allows CharType to be any POD,
// hence, the static_cast may fail (it fails if CharType is not
// convertible long.
i.iword(stream_index[m]) = static_cast<long>(c);
}
#endif // BOOST_NO_TEMPLATED_STREAMS
};
template<class CharType>
class tuple_manipulator {
const format_info::manipulator_type mt;
CharType f_c;
public:
explicit tuple_manipulator(format_info::manipulator_type m, const char c = 0)
: mt(m), f_c(c) {}
#if defined (BOOST_NO_TEMPLATED_STREAMS)
void set(std::ios &io) const {
format_info::set_manipulator(io, mt, f_c);
}
#else
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template<class CharType2, class CharTrait>
void set(std::basic_ios<CharType2, CharTrait> &io) const {
format_info::set_manipulator(io, mt, f_c);
}
#else
template<class CharTrait>
void set(std::basic_ios<CharType, CharTrait> &io) const {
format_info::set_manipulator(io, mt, f_c);
}
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
#endif // BOOST_NO_TEMPLATED_STREAMS
};
} // end of namespace tuples
} // end of namespace detail
#if defined (BOOST_NO_TEMPLATED_STREAMS)
inline std::ostream&
operator<<(std::ostream& o, const detail::tuples::tuple_manipulator<char>& m) {
m.set(o);
return o;
}
inline std::istream&
operator>>(std::istream& i, const detail::tuples::tuple_manipulator<char>& m) {
m.set(i);
return i;
}
#else
template<class CharType, class CharTrait>
inline std::basic_ostream<CharType, CharTrait>&
operator<<(std::basic_ostream<CharType, CharTrait>& o, const detail::tuples::tuple_manipulator<CharType>& m) {
m.set(o);
return o;
}
template<class CharType, class CharTrait>
inline std::basic_istream<CharType, CharTrait>&
operator>>(std::basic_istream<CharType, CharTrait>& i, const detail::tuples::tuple_manipulator<CharType>& m) {
m.set(i);
return i;
}
#endif // BOOST_NO_TEMPLATED_STREAMS
template<class CharType>
inline detail::tuples::tuple_manipulator<CharType> set_open(const CharType c) {
return detail::tuples::tuple_manipulator<CharType>(detail::tuples::format_info::open, c);
}
template<class CharType>
inline detail::tuples::tuple_manipulator<CharType> set_close(const CharType c) {
return detail::tuples::tuple_manipulator<CharType>(detail::tuples::format_info::close, c);
}
template<class CharType>
inline detail::tuples::tuple_manipulator<CharType> set_delimiter(const CharType c) {
return detail::tuples::tuple_manipulator<CharType>(detail::tuples::format_info::delimiter, c);
}
// -------------------------------------------------------------
// printing tuples to ostream in format (a b c)
// parentheses and space are defaults, but can be overriden with manipulators
// set_open, set_close and set_delimiter
namespace detail {
namespace tuples {
// Note: The order of the print functions is critical
// to let a conforming compiler find and select the correct one.
#if defined (BOOST_NO_TEMPLATED_STREAMS)
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template<class T1>
inline std::ostream& print(std::ostream& o, const cons<T1, null_type>& t) {
return o << t.head;
}
#endif // BOOST_NO_TEMPLATED_STREAMS
inline std::ostream& print(std::ostream& o, const null_type&) { return o; }
template<class T1, class T2>
inline std::ostream&
print(std::ostream& o, const cons<T1, T2>& t) {
const char d = format_info::get_manipulator(o, format_info::delimiter);
o << t.head;
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
if (tuple_length<T2>::value == 0)
return o;
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
o << d;
return print(o, t.tail );
}
#else
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template<class CharType, class CharTrait, class T1>
inline std::basic_ostream<CharType, CharTrait>&
print(std::basic_ostream<CharType, CharTrait>& o, const cons<T1, null_type>& t) {
return o << t.head;
}
#endif // !BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
template<class CharType, class CharTrait>
inline std::basic_ostream<CharType, CharTrait>&
print(std::basic_ostream<CharType, CharTrait>& o, const null_type&) {
return o;
}
template<class CharType, class CharTrait, class T1, class T2>
inline std::basic_ostream<CharType, CharTrait>&
print(std::basic_ostream<CharType, CharTrait>& o, const cons<T1, T2>& t) {
const CharType d = format_info::get_manipulator(o, format_info::delimiter);
o << t.head;
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
if (tuple_length<T2>::value == 0)
return o;
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
o << d;
return print(o, t.tail);
}
#endif // BOOST_NO_TEMPLATED_STREAMS
} // namespace tuples
} // namespace detail
#if defined (BOOST_NO_TEMPLATED_STREAMS)
template<class T1, class T2>
inline std::ostream& operator<<(std::ostream& o, const cons<T1, T2>& t) {
if (!o.good() ) return o;
const char l =
detail::tuples::format_info::get_manipulator(o, detail::tuples::format_info::open);
const char r =
detail::tuples::format_info::get_manipulator(o, detail::tuples::format_info::close);
o << l;
detail::tuples::print(o, t);
o << r;
return o;
}
#else
template<class CharType, class CharTrait, class T1, class T2>
inline std::basic_ostream<CharType, CharTrait>&
operator<<(std::basic_ostream<CharType, CharTrait>& o,
const cons<T1, T2>& t) {
if (!o.good() ) return o;
const CharType l =
detail::tuples::format_info::get_manipulator(o, detail::tuples::format_info::open);
const CharType r =
detail::tuples::format_info::get_manipulator(o, detail::tuples::format_info::close);
o << l;
detail::tuples::print(o, t);
o << r;
return o;
}
#endif // BOOST_NO_TEMPLATED_STREAMS
// -------------------------------------------------------------
// input stream operators
namespace detail {
namespace tuples {
#if defined (BOOST_NO_TEMPLATED_STREAMS)
inline std::istream&
extract_and_check_delimiter(
std::istream& is, format_info::manipulator_type del)
{
const char d = format_info::get_manipulator(is, del);
const bool is_delimiter = (!isspace(d) );
char c;
if (is_delimiter) {
is >> c;
if (c!=d) {
is.setstate(std::ios::failbit);
}
}
return is;
}
// Note: The order of the read functions is critical to let a
// (conforming?) compiler find and select the correct one.
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template<class T1>
inline std::istream &
read (std::istream &is, cons<T1, null_type>& t1) {
if (!is.good()) return is;
return is >> t1.head ;
}
#else
inline std::istream& read(std::istream& i, const null_type&) { return i; }
#endif // !BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
template<class T1, class T2>
inline std::istream&
read(std::istream &is, cons<T1, T2>& t1) {
if (!is.good()) return is;
is >> t1.head;
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
if (tuple_length<T2>::value == 0)
return is;
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
extract_and_check_delimiter(is, format_info::delimiter);
return read(is, t1.tail);
}
} // end namespace tuples
} // end namespace detail
inline std::istream&
operator>>(std::istream &is, null_type&) {
if (!is.good() ) return is;
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::open);
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::close);
return is;
}
template<class T1, class T2>
inline std::istream&
operator>>(std::istream& is, cons<T1, T2>& t1) {
if (!is.good() ) return is;
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::open);
detail::tuples::read(is, t1);
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::close);
return is;
}
#else
template<class CharType, class CharTrait>
inline std::basic_istream<CharType, CharTrait>&
extract_and_check_delimiter(
std::basic_istream<CharType, CharTrait> &is, format_info::manipulator_type del)
{
const CharType d = format_info::get_manipulator(is, del);
const bool is_delimiter = (!isspace(d) );
CharType c;
if (is_delimiter) {
is >> c;
if (c!=d) {
is.setstate(std::ios::failbit);
}
}
return is;
}
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template<class CharType, class CharTrait, class T1>
inline std::basic_istream<CharType, CharTrait> &
read (std::basic_istream<CharType, CharTrait> &is, cons<T1, null_type>& t1) {
if (!is.good()) return is;
return is >> t1.head;
}
#else
template<class CharType, class CharTrait>
inline std::basic_istream<CharType, CharTrait>&
read(std::basic_istream<CharType, CharTrait>& i, const null_type&) { return i; }
#endif // !BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
template<class CharType, class CharTrait, class T1, class T2>
inline std::basic_istream<CharType, CharTrait>&
read(std::basic_istream<CharType, CharTrait> &is, cons<T1, T2>& t1) {
if (!is.good()) return is;
is >> t1.head;
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
if (tuple_length<T2>::value == 0)
return is;
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
extract_and_check_delimiter(is, format_info::delimiter);
return read(is, t1.tail);
}
} // end namespace tuples
} // end namespace detail
template<class CharType, class CharTrait>
inline std::basic_istream<CharType, CharTrait>&
operator>>(std::basic_istream<CharType, CharTrait> &is, null_type&) {
if (!is.good() ) return is;
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::open);
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::close);
return is;
}
template<class CharType, class CharTrait, class T1, class T2>
inline std::basic_istream<CharType, CharTrait>&
operator>>(std::basic_istream<CharType, CharTrait>& is, cons<T1, T2>& t1) {
if (!is.good() ) return is;
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::open);
detail::tuples::read(is, t1);
detail::tuples::extract_and_check_delimiter(is, detail::tuples::format_info::close);
return is;
}
#endif // BOOST_NO_TEMPLATED_STREAMS
} // end of namespace boost
#endif // BOOST_TUPLE_IO_HPP