/usr/include/polymake/ContainerUnion.h is in libpolymake-dev-common 3.2r2-3.
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Ewgenij Gawrilow, Michael Joswig (Technische Universitaet Berlin, Germany)
http://www.polymake.org
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version: http://www.gnu.org/licenses/gpl.txt.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
--------------------------------------------------------------------------------
*/
#ifndef POLYMAKE_CONTAINER_UNION_H
#define POLYMAKE_CONTAINER_UNION_H
#include "polymake/internal/type_union.h"
#include "polymake/internal/iterators.h"
namespace pm {
/* -----------------
iterator_union
----------------- */
template <typename T1, typename T2,
bool _viable = attrib<typename compatible<T1,T2>::type>::is_reference ||
identical_minus_const_ref<T1,T2>::value>
struct union_reference : compatible<T1,T2> {};
template <typename T1, typename T2>
struct union_reference<T1*, T2*, false> : compatible<T1*, T2*> {};
template <typename T1, typename T2>
struct union_reference<T1*&, T2*&, false> : compatible<T1*, T2*> {};
template <typename T1, typename T2>
struct union_reference<T1*&, T2* const&, false> : compatible<T1*, T2*> {};
template <typename T1, typename T2>
struct union_reference<T1* const&, T2*&, false> : compatible<T1*, T2*> {};
template <typename T1, typename T2>
struct union_reference<T1* const&, T2* const&, false> : compatible<T1*, T2*> {};
template <typename T>
struct extract_union_list {
using type = T;
};
template <typename TypeList>
struct extract_union_list< type_union<TypeList> > {
using type = TypeList;
};
template <typename T1, typename T2,
typename Model1=typename object_traits<typename deref<T1>::type>::model,
typename Model2=typename object_traits<typename deref<T2>::type>::model>
struct union_reference_helper {
using type = type_union< typename merge_list<typename extract_union_list<T1>::type,
typename extract_union_list<T2>::type, std::is_same>::type >;
};
template <typename T1, typename T2>
struct union_reference<T1, T2, false> : union_reference_helper<T1, T2> {};
template <typename Iterator>
struct union_iterator_traits : iterator_traits<Iterator> {
using iterator_list = typename iterator_traits<Iterator>::iterator;
using const_iterator_list = typename iterator_traits<Iterator>::const_iterator;
};
template <typename Head, typename Tail>
struct union_iterator_traits< cons<Head,Tail> > {
using traits1 = union_iterator_traits<Head>;
using traits2 = union_iterator_traits<Tail>;
using iterator_category = typename least_derived_class<typename traits1::iterator_category, typename traits2::iterator_category>::type;
using reference = typename union_reference<typename traits1::reference, typename traits2::reference>::type;
using value_type = typename deref<reference>::type;
using pointer = value_type*;
using difference_type = typename std::common_type<typename traits1::difference_type, typename traits2::difference_type>::type;
using iterator_list = typename merge_list<typename traits1::iterator_list, typename traits2::iterator_list, std::is_same>::type;
using const_iterator_list = typename merge_list<typename traits1::const_iterator_list, typename traits2::const_iterator_list, std::is_same>::type;
};
namespace virtuals {
template <typename Iterator>
struct iterator_basics : basics<Iterator> {
static const typename iterator_traits<Iterator>::iterator& get_alt(const char* src)
{
return *reinterpret_cast<const typename iterator_traits<Iterator>::iterator*>(src);
}
};
template <typename Iterator>
struct alt_copy_constructor {
static void _do(char* dst, const char* src)
{
basics<Iterator>::construct(dst, iterator_basics<Iterator>::get_alt(src));
}
};
template <typename Iterator>
struct assignment {
static void _do(char* dst, const char* src)
{
basics<Iterator>::get(dst)=basics<Iterator>::get(src);
}
};
template <typename Iterator>
struct alt_assignment {
static void _do(char* dst, const char* src)
{
basics<Iterator>::get(dst)=iterator_basics<Iterator>::get_alt(src);
}
};
template <typename Iterator>
struct increment {
static void _do(char* it)
{
++basics<Iterator>::get(it);
}
};
template <typename Iterator>
struct decrement {
static void _do(char* it)
{
--basics<Iterator>::get(it);
}
};
template <typename Iterator>
struct advance_plus {
static void _do(char* it, int i)
{
basics<Iterator>::get(it)+=i;
}
};
template <typename Iterator>
struct advance_minus {
static void _do(char* it, int i)
{
basics<Iterator>::get(it)-=i;
}
};
template <typename Iterator>
struct equality {
static bool _do(const char* it1, const char* it2)
{
return basics<Iterator>::get(it1) == basics<Iterator>::get(it2);
}
};
template <typename Iterator>
struct difference {
static typename iterator_traits<Iterator>::difference_type
_do(const char* it1, const char* it2)
{
return basics<Iterator>::get(it1) - basics<Iterator>::get(it2);
}
};
template <typename Iterator>
struct index {
static int _do(const char* it)
{
return basics<Iterator>::get(it).index();
}
};
template <typename Iterator>
struct at_end {
static bool _do(const char* it)
{
return basics<Iterator>::get(it).at_end();
}
};
template <typename Iterator>
struct rewind {
static void _do(char* it)
{
basics<Iterator>::get(it).rewind();
}
};
template <typename IteratorList>
struct iterator_union_functions : type_union_functions<IteratorList> {
using base_t = type_union_functions<IteratorList>;
using traits = union_iterator_traits<IteratorList>;
template <int discr>
struct basics : virtuals::iterator_basics<typename n_th<IteratorList,discr>::type> {};
struct alt_copy_constructor : base_t::length_def {
template <int discr> struct defs : virtuals::alt_copy_constructor<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*, const char*);
static fpointer no_op() { return &empty_union_def::trivial_op2; }
};
struct assignment : base_t::length_def {
template <int discr> struct defs : virtuals::assignment<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*, const char*);
static fpointer no_op() { return &empty_union_def::trivial_op2; }
};
struct alt_assignment : base_t::length_def {
template <int discr> struct defs : virtuals::alt_assignment<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*, const char*);
static fpointer no_op() { return &empty_union_def::trivial_op2; }
};
struct dereference : base_t::length_def {
template <int discr> struct defs {
static typename traits::reference _do(const char* it)
{
return *basics<discr>::get(it);
}
};
using fpointer = typename traits::reference (*)(const char*);
};
struct increment : base_t::length_def {
template <int discr> struct defs : virtuals::increment<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*);
};
struct decrement : base_t::length_def {
template <int discr> struct defs : virtuals::decrement<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*);
};
struct advance_plus : base_t::length_def {
template <int discr> struct defs : virtuals::advance_plus<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*, int);
};
struct advance_minus : base_t::length_def {
template <int discr> struct defs : virtuals::advance_minus<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*, int);
};
struct equality : base_t::length_def {
template <int discr> struct defs : virtuals::equality<typename n_th<IteratorList,discr>::type> {};
using fpointer = bool (*)(const char*, const char*);
};
struct difference : base_t::length_def {
template <int discr> struct defs : virtuals::difference<typename n_th<IteratorList,discr>::type> {};
using fpointer = typename traits::difference_type (*)(const char*, const char*);
};
struct random : base_t::length_def {
template <int discr> struct defs {
static typename traits::reference _do(const char* it, int i)
{
return basics<discr>::get(it)[i];
}
};
using fpointer = typename traits::reference (*)(const char*, int);
};
struct index : base_t::length_def {
template <int discr> struct defs : virtuals::index<typename n_th<IteratorList,discr>::type> {};
using fpointer = int (*)(const char*);
};
struct at_end : base_t::length_def {
template <int discr> struct defs : virtuals::at_end<typename n_th<IteratorList,discr>::type> {};
using fpointer = bool (*)(const char*);
};
struct rewind : base_t::length_def {
template <int discr> struct defs : virtuals::rewind<typename n_th<IteratorList,discr>::type> {};
using fpointer = void (*)(char*);
};
};
} // end namespace virtuals
template <typename IteratorList, typename Category=typename union_iterator_traits<IteratorList>::iterator_category>
class iterator_union : public type_union<IteratorList> {
protected:
using base_t = type_union<IteratorList>;
using traits = union_iterator_traits<IteratorList>;
using Functions = virtuals::iterator_union_functions<IteratorList>;
template <int discr> struct basics : virtuals::basics<typename n_th<IteratorList,discr>::type> {};
template <typename Iterator, int own_discr, int alt_discr>
void init_from_value(const Iterator& it, cons< int_constant<own_discr>, int_constant<alt_discr> >)
{
const int discr=const_first_nonnegative<own_discr,alt_discr>::value;
this->discriminant=discr;
basics<discr>::construct(this->area,it);
}
template <typename OtherList>
void init_from_value(const iterator_union<OtherList>& it, cons< int_constant<-1>, int_constant<-1> >)
{
init_from_union(it, bool_constant< list_mapping<OtherList, IteratorList>::mismatch >(),
bool_constant< list_mapping<OtherList, typename traits::iterator_list>::mismatch >() );
}
template <typename OtherList, typename discr2>
void init_from_union(const iterator_union<OtherList>& it, std::false_type, discr2)
{
base_t::init_from_union(it, std::false_type());
}
template <typename OtherList>
void init_from_union(const iterator_union<OtherList>& it, std::true_type, std::false_type)
{
this->discriminant=virtuals::mapping< typename list_mapping<OtherList, typename traits::iterator_list>::type >::table[it.discriminant];
virtuals::table<typename Functions::alt_copy_constructor>::call(this->discriminant)(this->area,it.area);
}
template <typename Iterator>
void init_impl(const Iterator& it, std::false_type, std::false_type)
{
init_from_value(it, cons< int_constant<list_search<IteratorList, Iterator, std::is_same>::pos>,
int_constant<list_search<typename traits::iterator_list, Iterator, std::is_same>::pos> >());
}
template <typename Iterator, typename discr2>
void init_impl(const Iterator& it, std::true_type, discr2)
{
base_t::init_impl(it, std::true_type());
}
template <typename Iterator>
void init_impl(const Iterator& it, std::false_type, std::true_type)
{
this->discriminant=it.discriminant;
virtuals::table<typename Functions::alt_copy_constructor>::call(this->discriminant)(this->area,it.area);
}
template <typename Iterator, int own_discr, int alt_discr>
void assign_value(const Iterator& it, cons< int_constant<own_discr>, int_constant<alt_discr> >)
{
const int discr=const_first_nonnegative<own_discr,alt_discr>::value;
if (this->discriminant==discr) {
virtuals::table<typename Functions::assignment>::call(this->discriminant)(this->area,it);
} else {
virtuals::table<typename Functions::destructor>::call(this->discriminant)(this->area);
this->discriminant=discr;
basics<discr>::construct(this->area,it);
}
}
template <typename OtherList>
void assign_value(const iterator_union<OtherList>& it, cons< int_constant<-1>, int_constant<-1> >)
{
assign_union(it, bool_constant< list_mapping<OtherList, IteratorList>::mismatch >(),
bool_constant< list_mapping<OtherList, typename traits::iterator_list>::mismatch >() );
}
template <typename OtherList, typename discr2>
void assign_union(const iterator_union<OtherList>& it, std::false_type, discr2)
{
base_t::assign_union(it, std::false_type());
}
template <typename OtherList>
void assign_union(const iterator_union<OtherList>& it, std::true_type, std::false_type)
{
const int discr=virtuals::mapping< typename list_mapping<OtherList, typename traits::iterator_list>::type >::table[it.discriminant];
if (this->discriminant==discr) {
virtuals::table<typename Functions::alt_assignment>::call(this->discriminant)(this->area,it.area);
} else {
virtuals::table<typename Functions::destructor>::call(this->discriminant)(this->area);
this->discriminant=discr;
virtuals::table<typename Functions::alt_copy_constructor>::call(this->discriminant)(this->area,it.area);
}
}
template <typename Iterator>
void assign_impl(const Iterator& it, std::false_type, std::false_type)
{
assign_value(it, cons< int_constant<list_search<IteratorList, Iterator, std::is_same>::pos>,
int_constant<list_search<typename traits::iterator_list, Iterator, std::is_same>::pos> >());
}
template <typename Iterator, typename discr2>
void assign_impl(const Iterator& src, std::true_type, discr2)
{
base_t::assign_impl(src, std::true_type());
}
template <typename Iterator>
void assign_impl(const Iterator& it, std::false_type, std::true_type)
{
if (this->discriminant==it.discriminant) {
virtuals::table<typename Functions::alt_assignment>::call(this->discriminant)(this->area,it.area);
} else {
virtuals::table<typename Functions::destructor>::call(this->discriminant)(this->area);
init_impl(it, std::false_type(), std::true_type());
}
}
template <typename,typename> friend class iterator_union;
public:
using iterator_category = typename traits::iterator_category;
using value_type = typename traits::value_type;
using reference = typename traits::reference;
using pointer = typename traits::pointer;
using difference_type = typename traits::difference_type;
using iterator = iterator_union<typename traits::iterator_list>;
using const_iterator = iterator_union<typename traits::const_iterator_list>;
using me = iterator_union<IteratorList>;
iterator_union() {}
iterator_union(const iterator_union& it)
{
base_t::init_impl(it, std::true_type());
}
template <typename Iterator>
iterator_union(const Iterator& it)
{
init_impl(it, is_derived_from<Iterator, iterator_union>(),
is_derived_from<Iterator, iterator>());
}
iterator_union& operator= (const iterator_union& it)
{
base_t::assign_impl(it, std::true_type());
return *this;
}
template <typename Iterator>
iterator_union& operator= (const Iterator& it)
{
assign_impl(it, is_derived_from<Iterator, iterator_union>(),
is_derived_from<Iterator, iterator>());
return *this;
}
reference operator* () const
{
return virtuals::table<typename Functions::dereference>::call(this->discriminant)(this->area);
}
pointer operator-> () const { return &(operator*()); }
me& operator++ ()
{
virtuals::table<typename Functions::increment>::call(this->discriminant)(this->area);
return static_cast<me&>(*this);
}
const me operator++(int) { me copy=static_cast<me&>(*this); operator++(); return copy; }
bool operator== (const iterator_union& it) const
{
return this->discriminant==it.discriminant &&
virtuals::table<typename Functions::equality>::call(this->discriminant)(this->area,it.area);
}
bool operator!= (const iterator_union& it) const { return !operator==(it); }
bool at_end() const
{
static_assert(check_iterator_feature<iterator_union, end_sensitive>::value, "iterator is not end-sensitive");
return virtuals::table<typename Functions::at_end>::call(this->discriminant)(this->area);
}
int index() const
{
static_assert(check_iterator_feature<iterator_union, indexed>::value, "iterator is not indexed");
return virtuals::table<typename Functions::index>::call(this->discriminant)(this->area);
}
void rewind()
{
static_assert(check_iterator_feature<iterator_union, rewindable>::value, "iterator is not rewindable");
virtuals::table<typename Functions::rewind>::call(this->discriminant)(this->area);
}
};
template <typename IteratorList>
class iterator_union<IteratorList, bidirectional_iterator_tag>
: public iterator_union<IteratorList, forward_iterator_tag> {
using base_t = iterator_union<IteratorList, forward_iterator_tag> ;
public:
using me = iterator_union<IteratorList> ;
iterator_union() {}
template <typename Iterator>
iterator_union(const Iterator& it) : base_t(it) {}
template <typename Iterator>
iterator_union& operator= (const Iterator& it)
{
base_t::operator=(it);
return *this;
}
me& operator-- ()
{
virtuals::table<typename base_t::Functions::decrement>::call(this->discriminant)(this->area);
return static_cast<me&>(*this);
}
me operator--(int) { me copy=static_cast<me&>(*this); operator--(); return copy; }
};
template <typename IteratorList>
class iterator_union<IteratorList, random_access_iterator_tag>
: public iterator_union<IteratorList, bidirectional_iterator_tag> {
using base_t = iterator_union<IteratorList, bidirectional_iterator_tag>;
public:
iterator_union() {}
template <typename Iterator>
iterator_union(const Iterator& it) : base_t(it) {}
template <typename Iterator>
iterator_union& operator= (const Iterator& it)
{
base_t::operator=(it);
return *this;
}
iterator_union& operator+= (int i)
{
virtuals::table<typename base_t::Functions::advance_plus>::call(this->discriminant)(this->area);
return *this;
}
iterator_union& operator-= (int i)
{
virtuals::table<typename base_t::Functions::advance_minus>::call(this->discriminant)(this->area);
return *this;
}
iterator_union operator+ (int i) const { iterator_union copy=*this; return copy+=i; }
iterator_union operator- (int i) const { iterator_union copy=*this; return copy-=i; }
friend iterator_union operator+ (int i, const iterator_union& it) { return it+i; }
typename base_t::difference_type operator- (const iterator_union& it) const
{
return virtuals::table<typename base_t::Functions::difference>::call(this->discriminant)(this->area);
}
typename base_t::reference operator[] (int i) const
{
return virtuals::table<typename base_t::Functions::random>::call(this->discriminant)(this->area,i);
}
};
template <typename IteratorList, typename Feature, typename Category>
struct check_iterator_feature<iterator_union<IteratorList,Category>, Feature>
: list_accumulate_binary<list_and, check_iterator_feature, IteratorList, same<Feature> > {};
template <typename IteratorList, typename Category>
struct extract_union_list< iterator_union<IteratorList,Category> > {
using type = IteratorList;
};
/* -----------------
ContainerUnion
----------------- */
template <typename ContainerRef, typename Features,
bool _reversible=container_traits<ContainerRef>::is_bidirectional>
struct union_container_traits_helper : ensure_features<typename deref<ContainerRef>::minus_ref, Features> {
using base_t = ensure_features<typename deref<ContainerRef>::minus_ref, Features>;
using iterator_list = typename extract_union_list<typename base_t::iterator>::type;
using const_iterator_list = typename extract_union_list<typename base_t::const_iterator>::type ;
static const bool
is_reversible=_reversible, // = false
is_resizeable=object_traits<typename deref<ContainerRef>::type>::is_resizeable==1,
is_always_const=effectively_const<ContainerRef>::value;
};
template <typename ContainerRef, typename Features>
struct union_container_traits_helper<ContainerRef, Features, true>
: union_container_traits_helper<ContainerRef, Features, false> {
using base_t = union_container_traits_helper<ContainerRef, Features, false>;
using reverse_iterator_list = typename extract_union_list<typename base_t::reverse_iterator>::type;
using const_reverse_iterator_list = typename extract_union_list<typename base_t::const_reverse_iterator>::type;
static const bool is_reversible=true;
};
template <typename ContainerRef, typename Features=void>
struct union_container_traits : union_container_traits_helper<ContainerRef, Features> {};
template <typename C1, typename C2, typename Features,
bool need_union=!std::is_same<typename union_container_traits<C1, Features>::iterator,
typename union_container_traits<C2, Features>::iterator>::value,
bool reversible=union_container_traits<C1, Features>::is_reversible &&
union_container_traits<C2, Features>::is_reversible>
struct union_container_traits_helper2
: union_container_traits<C1, Features> {};
template <typename C1, typename C2, typename Features>
struct union_container_traits_helper2<C1, C2, Features, true, false> {
using iterator_list = typename merge_list<typename union_container_traits<C1, Features>::iterator_list,
typename union_container_traits<C2, Features>::iterator_list, std::is_same>::type;
using const_iterator_list = typename merge_list<typename union_container_traits<C1, Features>::const_iterator_list,
typename union_container_traits<C2, Features>::const_iterator_list, std::is_same>::type;
using iterator = iterator_union<iterator_list>;
using const_iterator = iterator_union<const_iterator_list>;
};
template <typename C1, typename C2, class Features>
struct union_container_traits_helper2<C1, C2, Features, true, true>
: union_container_traits_helper2<C1, C2, Features, true, false> {
using reverse_iterator_list = typename merge_list<typename union_container_traits<C1, Features>::reverse_iterator_list,
typename union_container_traits<C2, Features>::reverse_iterator_list, std::is_same>::type;
using const_reverse_iterator_list = typename merge_list<typename union_container_traits<C1, Features>::const_reverse_iterator_list,
typename union_container_traits<C2, Features>::const_reverse_iterator_list, std::is_same>::type;
using reverse_iterator = iterator_union<reverse_iterator_list> ;
using const_reverse_iterator = iterator_union<const_reverse_iterator_list> ;
};
template <typename Head, typename Tail, class Features>
struct union_container_traits<cons<Head, Tail>, Features>
: union_container_traits_helper2<Head, Tail, Features> {
using traits1 = union_container_traits<Head, Features>;
using traits2 = union_container_traits<Tail, Features>;
using category = typename least_derived_class<typename traits1::category, typename traits2::category>::type;
using reference = typename union_reference<typename traits1::reference, typename traits2::reference>::type;
using const_reference = typename union_reference<typename traits1::const_reference, typename traits2::const_reference>::type;
static const bool
is_reversible=traits1::is_reversible && traits2::is_reversible,
is_resizeable=traits1::is_resizeable && traits2::is_resizeable,
is_always_const=traits1::is_always_const || traits2::is_always_const;
};
namespace virtuals {
template <typename Container>
struct size {
static int _do(const char *c)
{
return basics<Container>::get(c).size();
}
};
template <typename Container>
struct dim {
static int _do(const char *c)
{
return get_dim(basics<Container>::get(c));
};
};
template <typename Container>
struct empty {
static bool _do(const char *c)
{
return basics<Container>::get(c).empty();
}
};
template <typename Container>
struct resize {
static void _do(char *c, int n)
{
basics<Container>::get(c).resize(n);
}
};
template <typename ContainerList, typename Features>
struct container_union_functions : type_union_functions<ContainerList> {
using base_t = type_union_functions<ContainerList>;
using traits = union_container_traits<ContainerList, Features>;
template <int discr>
struct basics : virtuals::basics<typename n_th<ContainerList,discr>::type> {};
struct size : base_t::length_def {
template <int discr> struct defs : virtuals::size<typename n_th<ContainerList,discr>::type> {};
using fpointer = int (*)(const char*);
};
struct dim : base_t::length_def {
template <int discr> struct defs : virtuals::dim<typename n_th<ContainerList,discr>::type> {};
using fpointer = int (*)(const char*);
};
struct empty : base_t::length_def {
template <int discr> struct defs : virtuals::empty<typename n_th<ContainerList,discr>::type> {};
using fpointer = bool (*)(const char*);
};
struct resize : base_t::length_def {
template <int discr> struct defs : virtuals::resize<typename n_th<ContainerList,discr>::type> {};
using fpointer = void (*)(char*, int);
};
struct begin : base_t::length_def {
template <int discr> struct defs {
static typename traits::iterator _do(char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).begin();
}
};
using fpointer = typename traits::iterator (*)(char*);
};
struct end : base_t::length_def {
template <int discr> struct defs {
static typename traits::iterator _do(char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).end();
}
};
using fpointer = typename traits::iterator (*)(char*);
};
struct const_begin : base_t::length_def {
template <int discr> struct defs {
static typename traits::const_iterator _do(const char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).begin();
}
};
using fpointer = typename traits::const_iterator (*)(const char*);
};
struct const_end : base_t::length_def {
template <int discr> struct defs {
static typename traits::const_iterator _do(const char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).end();
}
};
using fpointer = typename traits::const_iterator (*)(const char*);
};
struct rbegin : base_t::length_def {
template <int discr> struct defs {
static typename traits::reverse_iterator _do(char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).rbegin();
}
};
using fpointer = typename traits::reverse_iterator (*)(char*);
};
struct rend : base_t::length_def {
template <int discr> struct defs {
static typename traits::reverse_iterator _do(char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).rend();
}
};
using fpointer = typename traits::reverse_iterator (*)(char*);
};
struct const_rbegin : base_t::length_def {
template <int discr> struct defs {
static typename traits::const_reverse_iterator _do(const char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).rbegin();
}
};
using fpointer = typename traits::const_reverse_iterator (*)(const char*);
};
struct const_rend : base_t::length_def {
template <int discr> struct defs {
static typename traits::const_reverse_iterator _do(const char* c)
{
return ensure(basics<discr>::get(c), (Features*)0).rend();
}
};
using fpointer = typename traits::const_reverse_iterator (*)(const char*);
};
struct front : base_t::length_def {
template <int discr> struct defs {
static typename traits::reference _do(char* c)
{
return basics<discr>::get(c).front();
}
};
using fpointer = typename traits::reference (*)(char*);
};
struct const_front : base_t::length_def {
template <int discr> struct defs {
static typename traits::const_reference _do(const char* c)
{
return basics<discr>::get(c).front();
}
};
using fpointer = typename traits::const_reference (*)(const char*);
};
struct back : base_t::length_def {
template <int discr> struct defs {
static typename traits::reference _do(char* c)
{
return basics<discr>::get(c).back();
}
};
using fpointer = typename traits::reference (*)(char*);
};
struct const_back : base_t::length_def {
template <int discr> struct defs {
static typename traits::const_reference _do(const char* c)
{
return basics<discr>::get(c).back();
}
};
using fpointer = typename traits::const_reference (*)(const char*);
};
struct random : base_t::length_def {
template <int discr> struct defs {
static typename traits::reference _do(char* c, int i)
{
return basics<discr>::get(c)[i];
}
};
using fpointer = typename traits::reference (*)(char*, int);
};
struct const_random : base_t::length_def {
template <int discr> struct defs {
static typename traits::const_reference _do(const char* c, int i)
{
return basics<discr>::get(c)[i];
}
};
using fpointer = typename traits::const_reference (*)(const char*, int);
};
};
} // end namespace virtuals
template <typename ContainerList, typename ProvidedFeatures,
bool _enable=union_container_traits<ContainerList,ProvidedFeatures>::is_resizeable>
class container_union_resize {};
template <typename ContainerList, typename ProvidedFeatures,
typename Category=typename union_container_traits<ContainerList,ProvidedFeatures>::category>
class container_union_elem_access {
protected:
static const bool provide_sparse =
list_accumulate_binary<list_or, check_container_ref_feature, ContainerList, same<sparse> >::value &&
!list_accumulate_binary<list_and, check_container_ref_feature, ContainerList, same<sparse> >::value &&
!list_search<ProvidedFeatures, dense, std::is_same>::value;
using needed_features = typename std::conditional<provide_sparse,
typename mix_features<ProvidedFeatures, sparse_compatible>::type,
ProvidedFeatures>::type;
using traits = union_container_traits<ContainerList, needed_features>;
using Functions = virtuals::container_union_functions<ContainerList, needed_features>;
public:
using reference = typename traits::reference;
using const_reference = typename traits::const_reference;
using value_type = typename deref<reference>::type;
using container_category = typename traits::category;
friend class container_union_resize<ContainerList,ProvidedFeatures>;
};
template <typename ContainerList, typename ProvidedFeatures=void>
class ContainerUnion
: public type_union<ContainerList>
, public container_union_elem_access<ContainerList,ProvidedFeatures>
, public container_union_resize<ContainerList,ProvidedFeatures>
, public inherit_generic<ContainerUnion<ContainerList,ProvidedFeatures>,
typename list_transform_unary<deref,ContainerList>::type>::type {
using base_t = type_union<ContainerList>;
using access_t = container_union_elem_access<ContainerList,ProvidedFeatures>;
template <typename,typename,typename> friend class container_union_elem_access;
friend class container_union_resize<ContainerList,ProvidedFeatures>;
public:
using iterator = typename access_t::traits::iterator;
using const_iterator = typename access_t::traits::const_iterator;
ContainerUnion() {}
template <typename T>
ContainerUnion(const T& src) : base_t(src) {}
template <typename T>
ContainerUnion& operator= (const T& src)
{
base_t::operator=(src);
return *this;
}
iterator begin()
{
return virtuals::table<typename access_t::Functions::begin>::call(this->discriminant)(this->area);
}
iterator end()
{
return virtuals::table<typename access_t::Functions::end>::call(this->discriminant)(this->area);
}
const_iterator begin() const
{
return virtuals::table<typename access_t::Functions::const_begin>::call(this->discriminant)(this->area);
}
const_iterator end() const
{
return virtuals::table<typename access_t::Functions::const_end>::call(this->discriminant)(this->area);
}
int size() const
{
return virtuals::table<typename access_t::Functions::size>::call(this->discriminant)(this->area);
}
bool empty() const
{
return virtuals::table<typename access_t::Functions::empty>::call(this->discriminant)(this->area);
}
int dim() const
{
return virtuals::table<typename access_t::Functions::dim>::call(this->discriminant)(this->area);
}
};
template <typename ContainerList, typename ProvidedFeatures>
class container_union_elem_access<ContainerList, ProvidedFeatures, forward_iterator_tag>
: public container_union_elem_access<ContainerList, ProvidedFeatures, input_iterator_tag> {
using base_t = container_union_elem_access<ContainerList, ProvidedFeatures, input_iterator_tag>;
protected:
using master = ContainerUnion<ContainerList,ProvidedFeatures>;
public:
typename base_t::reference front()
{
master& me=static_cast<master&>(*this);
return virtuals::table<typename base_t::Functions::front>::call(me.discriminant)(me.area);
}
typename base_t::const_reference front() const
{
const master& me=static_cast<const master&>(*this);
return virtuals::table<typename base_t::Functions::const_front>::call(me.discriminant)(me.area);
}
};
template <class ContainerList, class ProvidedFeatures>
class container_union_elem_access<ContainerList, ProvidedFeatures, bidirectional_iterator_tag>
: public container_union_elem_access<ContainerList, ProvidedFeatures, forward_iterator_tag> {
using base_t = container_union_elem_access<ContainerList, ProvidedFeatures, forward_iterator_tag>;
public:
using reverse_iterator = typename base_t::traits::reverse_iterator;
using const_reverse_iterator = typename base_t::traits::const_reverse_iterator;
reverse_iterator rbegin()
{
auto& me=static_cast<typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::rbegin>::call(me.discriminant)(me.area);
}
reverse_iterator rend()
{
auto& me=static_cast<typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::rend>::call(me.discriminant)(me.area);
}
const_reverse_iterator rbegin() const
{
auto& me=static_cast<const typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::const_rbegin>::call(me.discriminant)(me.area);
}
const_reverse_iterator rend() const
{
auto& me=static_cast<const typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::const_rend>::call(me.discriminant)(me.area);
}
typename base_t::reference back()
{
auto& me=static_cast<typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::back>::call(me.discriminant)(me.area);
}
typename base_t::const_reference back() const
{
auto& me=static_cast<const typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::const_back>::call(me.discriminant)(me.area);
}
};
template <typename ContainerList, typename ProvidedFeatures>
class container_union_elem_access<ContainerList, ProvidedFeatures, random_access_iterator_tag>
: public container_union_elem_access<ContainerList, ProvidedFeatures, bidirectional_iterator_tag> {
using base_t = container_union_elem_access<ContainerList, ProvidedFeatures, bidirectional_iterator_tag>;
public:
typename base_t::reference operator[] (int i)
{
auto& me=static_cast<typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::random>::call(me.discriminant)(me.area, i);
}
typename base_t::const_reference operator[] (int i) const
{
auto& me=static_cast<const typename base_t::master&>(*this);
return virtuals::table<typename base_t::Functions::const_random>::call(me.discriminant)(me.area, i);
}
};
template <typename ContainerList, typename ProvidedFeatures>
class container_union_resize<ContainerList, ProvidedFeatures, true> {
protected:
using master = ContainerUnion<ContainerList,ProvidedFeatures>;
using base_t = container_union_elem_access<ContainerList, ProvidedFeatures>;
public:
void resize(int n)
{
master& me=static_cast<master&>(*this);
virtuals::table<typename base_t::Functions::resize>::call(me.discriminant)(me.area, n);
}
};
template <typename ContainerList, typename ProvidedFeatures, typename Features>
struct enforce_features<ContainerUnion<ContainerList,ProvidedFeatures>, Features> {
using container = ContainerUnion<ContainerList, typename mix_features<ProvidedFeatures, Features>::type>;
};
template <typename ContainerList, typename ProvidedFeatures>
struct spec_object_traits< ContainerUnion<ContainerList,ProvidedFeatures> >
: spec_object_traits<is_container> {
static const int is_resizeable = union_container_traits<ContainerList,ProvidedFeatures>::is_resizeable;
static const bool is_always_const = union_container_traits<ContainerList,ProvidedFeatures>::is_always_const,
is_persistent=false;
};
template <typename ContainerList, typename ProvidedFeatures, typename Feature>
struct check_container_feature<ContainerUnion<ContainerList,ProvidedFeatures>, Feature> {
static const bool value=
list_accumulate_binary<list_and, check_container_ref_feature, ContainerList, same<Feature> >::value ||
list_accumulate_binary<list_or, absorbing_feature, ProvidedFeatures, same<Feature> >::value;
};
template <typename ContainerList, typename ProvidedFeatures>
struct check_container_feature<ContainerUnion<ContainerList,ProvidedFeatures>, sparse> {
static const bool value=
list_accumulate_binary<list_or, check_container_ref_feature, ContainerList, same<sparse> >::value &&
!list_search<ProvidedFeatures, dense, std::is_same>::value;
};
template <typename ContainerList, typename ProvidedFeatures>
struct check_container_feature<ContainerUnion<ContainerList,ProvidedFeatures>, sparse_compatible>
: check_container_feature<ContainerUnion<ContainerList,ProvidedFeatures>, sparse> {};
template <typename ContainerList, typename ProvidedFeatures>
struct extract_union_list< ContainerUnion<ContainerList, ProvidedFeatures> > {
using type = ContainerList;
};
template <typename T1, typename T2>
struct union_reference_helper<T1, T2, is_container, is_container> {
using type = ContainerUnion< typename merge_list<typename extract_union_list<T1>::type,
typename extract_union_list<T2>::type, std::is_same>::type >;
};
} // end namespace pm
namespace polymake {
using pm::ContainerUnion;
}
#endif // POLYMAKE_CONTAINER_UNION_H
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