ranged_hash_fn.hpp [plain text]
#ifndef PB_DS_RANGED_HASH_FN_HPP
#define PB_DS_RANGED_HASH_FN_HPP
#include <ext/pb_ds/detail/basic_types.hpp>
#include <utility>
#include <debug/debug.h>
namespace pb_ds
{
namespace detail
{
template<typename Key, typename Hash_Fn, typename Allocator,
typename Comb_Hash_Fn, bool Store_Hash>
class ranged_hash_fn;
#define PB_DS_CLASS_T_DEC \
template<typename Key, typename Hash_Fn, typename Allocator, \
typename Comb_Hash_Fn>
#define PB_DS_CLASS_C_DEC \
ranged_hash_fn<Key, Hash_Fn, Allocator, Comb_Hash_Fn, false>
template<typename Key, typename Hash_Fn, typename Allocator,
typename Comb_Hash_Fn>
class ranged_hash_fn< Key, Hash_Fn, Allocator, Comb_Hash_Fn, false>
: public Hash_Fn, public Comb_Hash_Fn
{
protected:
typedef typename Allocator::size_type size_type;
typedef Hash_Fn hash_fn_base;
typedef Comb_Hash_Fn comb_hash_fn_base;
typedef typename Allocator::template rebind< Key>::other key_allocator;
typedef typename key_allocator::const_reference const_key_reference;
ranged_hash_fn(size_type);
ranged_hash_fn(size_type, const Hash_Fn&);
ranged_hash_fn(size_type, const Hash_Fn&, const Comb_Hash_Fn&);
void
swap(PB_DS_CLASS_C_DEC&);
void
notify_resized(size_type);
inline size_type
operator()(const_key_reference) const;
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size)
{ Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn)
: Hash_Fn(r_hash_fn)
{ Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn,
const Comb_Hash_Fn& r_comb_hash_fn)
: Hash_Fn(r_hash_fn), Comb_Hash_Fn(r_comb_hash_fn)
{ comb_hash_fn_base::notify_resized(size); }
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
swap(PB_DS_CLASS_C_DEC& other)
{
comb_hash_fn_base::swap(other);
std::swap((Hash_Fn& )(*this), (Hash_Fn& )other);
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
notify_resized(size_type size)
{ comb_hash_fn_base::notify_resized(size); }
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::size_type
PB_DS_CLASS_C_DEC::
operator()(const_key_reference r_key) const
{ return (comb_hash_fn_base::operator()(hash_fn_base::operator()(r_key)));}
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
#define PB_DS_CLASS_T_DEC \
template<typename Key, typename Hash_Fn, typename Allocator, \
typename Comb_Hash_Fn>
#define PB_DS_CLASS_C_DEC \
ranged_hash_fn<Key,Hash_Fn, Allocator, Comb_Hash_Fn, true>
template<typename Key, typename Hash_Fn, typename Allocator,
typename Comb_Hash_Fn>
class ranged_hash_fn<Key, Hash_Fn, Allocator, Comb_Hash_Fn, true>
: public Hash_Fn, public Comb_Hash_Fn
{
protected:
typedef typename Allocator::size_type size_type;
typedef std::pair<size_type, size_type> comp_hash;
typedef Hash_Fn hash_fn_base;
typedef Comb_Hash_Fn comb_hash_fn_base;
typedef typename Allocator::template rebind<Key>::other key_allocator;
typedef typename key_allocator::const_reference const_key_reference;
ranged_hash_fn(size_type);
ranged_hash_fn(size_type, const Hash_Fn&);
ranged_hash_fn(size_type, const Hash_Fn&, const Comb_Hash_Fn&);
void
swap(PB_DS_CLASS_C_DEC&);
void
notify_resized(size_type);
inline comp_hash
operator()(const_key_reference) const;
inline comp_hash
operator()(const_key_reference, size_type) const;
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size)
{ Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn) :
Hash_Fn(r_hash_fn)
{ Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn,
const Comb_Hash_Fn& r_comb_hash_fn)
: Hash_Fn(r_hash_fn), Comb_Hash_Fn(r_comb_hash_fn)
{ comb_hash_fn_base::notify_resized(size); }
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
swap(PB_DS_CLASS_C_DEC& other)
{
comb_hash_fn_base::swap(other);
std::swap((Hash_Fn& )(*this), (Hash_Fn& )other);
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
notify_resized(size_type size)
{ comb_hash_fn_base::notify_resized(size); }
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::comp_hash
PB_DS_CLASS_C_DEC::
operator()(const_key_reference r_key) const
{
const size_type hash = hash_fn_base::operator()(r_key);
return std::make_pair(comb_hash_fn_base::operator()(hash), hash);
}
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::comp_hash
PB_DS_CLASS_C_DEC::
operator()
#ifdef _GLIBCXX_DEBUG
(const_key_reference r_key, size_type hash) const
#else
(const_key_reference , size_type hash) const
#endif
{
_GLIBCXX_DEBUG_ASSERT(hash == hash_fn_base::operator()(r_key));
return std::make_pair(comb_hash_fn_base::operator()(hash), hash);
}
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
#define PB_DS_CLASS_T_DEC \
template<typename Key, typename Allocator, typename Comb_Hash_Fn>
#define PB_DS_CLASS_C_DEC \
ranged_hash_fn<Key, null_hash_fn, Allocator, Comb_Hash_Fn, false>
template<typename Key, typename Allocator, typename Comb_Hash_Fn>
class ranged_hash_fn<Key, null_hash_fn, Allocator, Comb_Hash_Fn, false>
: public null_hash_fn, public Comb_Hash_Fn
{
protected:
typedef typename Allocator::size_type size_type;
typedef Comb_Hash_Fn comb_hash_fn_base;
ranged_hash_fn(size_type);
ranged_hash_fn(size_type, const Comb_Hash_Fn&);
ranged_hash_fn(size_type, const null_hash_fn&, const Comb_Hash_Fn&);
void
swap(PB_DS_CLASS_C_DEC&);
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size)
{ Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const Comb_Hash_Fn& r_comb_hash_fn) :
Comb_Hash_Fn(r_comb_hash_fn)
{ }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const null_hash_fn& r_null_hash_fn,
const Comb_Hash_Fn& r_comb_hash_fn)
: Comb_Hash_Fn(r_comb_hash_fn)
{ }
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
swap(PB_DS_CLASS_C_DEC& other)
{ comb_hash_fn_base::swap(other); }
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
#define PB_DS_CLASS_T_DEC \
template<typename Key, typename Allocator, typename Comb_Hash_Fn>
#define PB_DS_CLASS_C_DEC \
ranged_hash_fn<Key, null_hash_fn, Allocator, Comb_Hash_Fn, true>
template<typename Key, typename Allocator, typename Comb_Hash_Fn>
class ranged_hash_fn<Key, null_hash_fn, Allocator, Comb_Hash_Fn, true>
: public null_hash_fn, public Comb_Hash_Fn
{
protected:
typedef typename Allocator::size_type size_type;
typedef Comb_Hash_Fn comb_hash_fn_base;
ranged_hash_fn(size_type);
ranged_hash_fn(size_type, const Comb_Hash_Fn&);
ranged_hash_fn(size_type, const null_hash_fn&, const Comb_Hash_Fn&);
void
swap(PB_DS_CLASS_C_DEC&);
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size)
{ Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const Comb_Hash_Fn& r_comb_hash_fn)
: Comb_Hash_Fn(r_comb_hash_fn)
{ }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size, const null_hash_fn& r_null_hash_fn,
const Comb_Hash_Fn& r_comb_hash_fn)
: Comb_Hash_Fn(r_comb_hash_fn)
{ }
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
swap(PB_DS_CLASS_C_DEC& other)
{ comb_hash_fn_base::swap(other); }
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
} }
#endif