// - tuple_basic_no_partial_spec.hpp -----------------------------------------
-// Copyright (C) 1999, 2000 Jaakko Jรคrvi (jaakko.jarvi@cs.utu.fi)
-// Copyright (C) 2001 Doug Gregor (gregod@rpi.edu)
+// Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
+// Copyright (C) 2001 Douglas 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.
+// 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)
-// For more information, see http://www.boost.org or http://lambda.cs.utu.fi
+// For more information, see http://www.boost.org or http://lambda.cs.utu.fi
-// Revision History
+// 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
+// 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"
+#include "boost/utility/swap.hpp"
#include <utility>
#if defined BOOST_MSVC
namespace tuples {
// null_type denotes the end of a list built with "cons"
- struct null_type
+ 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(); }
// forward declaration of tuple
template<
- typename T1 = null_type,
- typename T2 = null_type,
- typename T3 = null_type,
+ typename T1 = null_type,
+ typename T2 = null_type,
+ typename T3 = null_type,
typename T4 = null_type,
typename T5 = null_type,
typename T6 = null_type,
>
class tuple;
+// forward declaration of cons
+ template<typename Head, typename Tail = null_type>
+ struct cons;
+
namespace detail {
// Takes a pointer and routes all assignments to whatever it points to
struct swallow_assign
{
template<typename T>
- swallow_assign& operator=(const T&)
+ swallow_assign const& operator=(const T&) const
{
return *this;
}
};
template <typename T> struct add_const_reference : add_reference<typename add_const<T>::type> {};
+
+ template <class MyTail>
+ struct init_tail
+ {
+ // Each of vc6 and vc7 seem to require a different formulation
+ // of this return type
+ template <class H, class T>
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+ static typename add_reference<typename add_const<T>::type>::type
+#else
+ static typename add_const_reference<T>::type
+#endif
+ execute( cons<H,T> const& u, long )
+ {
+ return u.get_tail();
+ }
+ };
+
+ template <>
+ struct init_tail<null_type>
+ {
+ template <class H>
+ static null_type execute( cons<H,null_type> const& u, long )
+ {
+ return null_type();
+ }
+
+ template <class U>
+ static null_type execute(U const&, ...)
+ {
+ return null_type();
+ }
+ private:
+ template <class H, class T>
+ void execute( cons<H,T> const&, int);
+ };
+
+ template <class Other>
+ Other const&
+ init_head( Other const& u, ... )
+ {
+ return u;
+ }
+
+ template <class H, class T>
+ typename add_reference<typename add_const<H>::type>::type
+ init_head( cons<H,T> const& u, int )
+ {
+ return u.get_head();
+ }
+
+ inline char**** init_head(null_type const&, int);
+
} // end of namespace detail
// cons builds a heterogenous list of types
- template<typename Head, typename Tail = null_type>
+ template<typename Head, typename Tail>
struct cons
{
typedef cons self_type;
tail_type tail;
head_ref get_head() { return head; }
- tail_ref get_tail() { return tail; }
+ tail_ref get_tail() { return tail; }
head_cref get_head() const { return head; }
tail_cref get_tail() const { return tail; }
-
+
+ cons() : head(), tail() {}
+
#if defined BOOST_MSVC
template<typename Tail>
- explicit cons(head_cref h /* = head_type() */, // causes MSVC 6.5 to barf.
+ cons(head_cref h /* = head_type() */, // causes MSVC 6.5 to barf.
const Tail& t) : head(h), tail(t.head, t.tail)
{
}
- explicit cons(head_cref h /* = head_type() */, // causes MSVC 6.5 to barf.
+ cons(head_cref h /* = head_type() */, // causes MSVC 6.5 to barf.
const null_type& t) : head(h), tail(t)
{
}
#else
template<typename T>
- explicit cons(head_cref h, const T& t) :
+ explicit cons(head_cref h, const T& t) :
head(h), tail(t.head, t.tail)
{
}
}
#endif
+ template <class U>
+ cons( const U& u )
+ : head(detail::init_head(u, 0))
+ , tail(detail::init_tail<Tail>::execute(u, 0L))
+ {
+ }
template<typename Other>
cons& operator=(const Other& other)
return *this;
}
};
-
+
namespace detail {
// 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>
// 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 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
{
BOOST_STATIC_CONSTANT(int, value = 1 + length<typename Tuple::tail_type>::value);
};
-
+
template<> struct length<tuple<> > {
BOOST_STATIC_CONSTANT(int, value = 0);
};
// tuple class
template<
- typename T1,
- typename T2,
- typename T3,
+ typename T1,
+ typename T2,
+ typename T3,
typename T4,
typename T5,
typename T6,
typename T9,
typename T10
>
- class tuple :
+ class tuple :
public detail::map_tuple_to_cons<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>::cons1
{
private:
typedef cons1 inherited;
typedef tuple self_type;
- explicit tuple(t1_cref t1 = T1(),
- t2_cref t2 = T2(),
- t3_cref t3 = T3(),
- t4_cref t4 = T4(),
- t5_cref t5 = T5(),
- t6_cref t6 = T6(),
- t7_cref t7 = T7(),
- t8_cref t8 = T8(),
- t9_cref t9 = T9(),
- t10_cref t10 = T10()
- ) :
+ tuple() : cons1(T1(), cons2(T2(), cons3(T3(), cons4(T4(), cons5(T5(), cons6(T6(),cons7(T7(),cons8(T8(),cons9(T9(),cons10(T10()))))))))))
+ {}
+
+ tuple(
+ t1_cref t1,
+ t2_cref t2,
+ t3_cref t3 = T3(),
+ t4_cref t4 = T4(),
+ t5_cref t5 = T5(),
+ t6_cref t6 = T6(),
+ t7_cref t7 = T7(),
+ t8_cref t8 = T8(),
+ t9_cref t9 = T9(),
+ t10_cref t10 = T10()
+ ) :
cons1(t1, cons2(t2, cons3(t3, cons4(t4, cons5(t5, cons6(t6,cons7(t7,cons8(t8,cons9(t9,cons10(t10))))))))))
{
}
+ explicit tuple(t1_cref t1)
+ : cons1(t1, cons2(T2(), cons3(T3(), cons4(T4(), cons5(T5(), cons6(T6(),cons7(T7(),cons8(T8(),cons9(T9(),cons10(T10()))))))))))
+ {}
+
template<typename Head, typename Tail>
- explicit tuple(const cons<Head, Tail>& other) :
+ tuple(const cons<Head, Tail>& other) :
cons1(other.head, other.tail)
{
}
{
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
// Tie variables into a tuple
template<typename T1, typename T2>
inline
- tuple<detail::assign_to_pointee<T1>,
+ tuple<detail::assign_to_pointee<T1>,
detail::assign_to_pointee<T2> >
tie(T1& t1, T2& t2)
{
// Tie variables into a tuple
template<typename T1, typename T2, typename T3>
inline
- tuple<detail::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
detail::assign_to_pointee<T3> >
tie(T1& t1, T2& t2, T3& t3)
{
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4>
inline
- tuple<detail::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
- detail::assign_to_pointee<T3>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
+ detail::assign_to_pointee<T3>,
detail::assign_to_pointee<T4> >
tie(T1& t1, T2& t2, T3& t3, T4& t4)
{
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5>
inline
- tuple<detail::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
- detail::assign_to_pointee<T3>,
- detail::assign_to_pointee<T4>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
+ detail::assign_to_pointee<T3>,
+ detail::assign_to_pointee<T4>,
detail::assign_to_pointee<T5> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5)
{
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
inline
- tuple<detail::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
- detail::assign_to_pointee<T3>,
- detail::assign_to_pointee<T4>,
- detail::assign_to_pointee<T5>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
+ detail::assign_to_pointee<T3>,
+ detail::assign_to_pointee<T4>,
+ detail::assign_to_pointee<T5>,
detail::assign_to_pointee<T6> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6)
{
// Tie variables into a tuple
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
inline
- tuple<detail::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
- detail::assign_to_pointee<T3>,
- detail::assign_to_pointee<T4>,
- detail::assign_to_pointee<T5>,
- detail::assign_to_pointee<T6>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
+ detail::assign_to_pointee<T3>,
+ detail::assign_to_pointee<T4>,
+ detail::assign_to_pointee<T5>,
+ detail::assign_to_pointee<T6>,
detail::assign_to_pointee<T7> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6, 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::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
- detail::assign_to_pointee<T3>,
- detail::assign_to_pointee<T4>,
- detail::assign_to_pointee<T5>,
- detail::assign_to_pointee<T6>,
- detail::assign_to_pointee<T7>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
+ detail::assign_to_pointee<T3>,
+ detail::assign_to_pointee<T4>,
+ detail::assign_to_pointee<T5>,
+ detail::assign_to_pointee<T6>,
+ detail::assign_to_pointee<T7>,
detail::assign_to_pointee<T8> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6, T7 &t7, 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::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
- detail::assign_to_pointee<T3>,
- detail::assign_to_pointee<T4>,
- detail::assign_to_pointee<T5>,
- detail::assign_to_pointee<T6>,
- detail::assign_to_pointee<T7>,
- detail::assign_to_pointee<T8>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
+ detail::assign_to_pointee<T3>,
+ detail::assign_to_pointee<T4>,
+ detail::assign_to_pointee<T5>,
+ detail::assign_to_pointee<T6>,
+ detail::assign_to_pointee<T7>,
+ detail::assign_to_pointee<T8>,
detail::assign_to_pointee<T9> >
tie(T1& t1, T2& t2, T3& t3, T4& t4, T5 &t5, T6 &t6, T7 &t7, T8 &t8, 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::assign_to_pointee<T1>,
- detail::assign_to_pointee<T2>,
- detail::assign_to_pointee<T3>,
- detail::assign_to_pointee<T4>,
- detail::assign_to_pointee<T5>,
- detail::assign_to_pointee<T6>,
- detail::assign_to_pointee<T7>,
- detail::assign_to_pointee<T8>,
- detail::assign_to_pointee<T9>,
+ tuple<detail::assign_to_pointee<T1>,
+ detail::assign_to_pointee<T2>,
+ detail::assign_to_pointee<T3>,
+ detail::assign_to_pointee<T4>,
+ detail::assign_to_pointee<T5>,
+ detail::assign_to_pointee<T6>,
+ detail::assign_to_pointee<T7>,
+ detail::assign_to_pointee<T8>,
+ detail::assign_to_pointee<T9>,
detail::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)
{
detail::assign_to_pointee<T9>(&t9),
detail::assign_to_pointee<T10>(&t10));
}
- // "ignore" allows tuple positions to be ignored when using "tie".
- namespace {
-#if (defined(BOOST_MSVC) && BOOST_MSVC <= 1300) || (defined(__DECCXX_VER) && __DECCXX_VER <= 60590031)
- static
-#endif
- detail::swallow_assign ignore;
- }
+ // "ignore" allows tuple positions to be ignored when using "tie".
+
+detail::swallow_assign const ignore = detail::swallow_assign();
+
+template <class T0, class T1, class T2, class T3, class T4,
+ class T5, class T6, class T7, class T8, class T9>
+void swap(tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>& lhs,
+ tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>& rhs);
+inline void swap(null_type&, null_type&) {}
+template<class HH>
+inline void swap(cons<HH, null_type>& lhs, cons<HH, null_type>& rhs) {
+ ::boost::swap(lhs.head, rhs.head);
+}
+template<class HH, class TT>
+inline void swap(cons<HH, TT>& lhs, cons<HH, TT>& rhs) {
+ ::boost::swap(lhs.head, rhs.head);
+ ::boost::tuples::swap(lhs.tail, rhs.tail);
+}
+template <class T0, class T1, class T2, class T3, class T4,
+ class T5, class T6, class T7, class T8, class T9>
+inline void swap(tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>& lhs,
+ tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9>& rhs) {
+ typedef tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> tuple_type;
+ typedef typename tuple_type::inherited base;
+ ::boost::tuples::swap(static_cast<base&>(lhs), static_cast<base&>(rhs));
+}
} // namespace tuples
} // namespace boost
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