libostd/octa/set.h

378 lines
12 KiB
C
Raw Normal View History

2015-06-16 23:19:20 +02:00
/* A set container for OctaSTD. Implemented as a hash table.
*
* This file is part of OctaSTD. See COPYING.md for futher information.
*/
#ifndef OCTA_SET_H
#define OCTA_SET_H
#include "octa/types.h"
#include "octa/utility.h"
#include "octa/memory.h"
#include "octa/functional.h"
#include "octa/initializer_list.h"
#include "octa/internal/hashtable.h"
namespace octa {
namespace detail {
template<typename T, typename A> struct SetBase {
static inline const T &get_key(const T &e) {
return e;
}
static inline T &get_data(T &e) {
return e;
}
template<typename U>
static inline void set_key(T &, const U &, A &) {}
static inline void swap_elem(T &a, T &b) { octa::swap(a, b); }
};
}
template<
typename T,
typename H = octa::ToHash<T>,
typename C = octa::Equal<T>,
typename A = octa::Allocator<T>
> struct Set {
private:
using Base = octa::detail::Hashtable<
2015-06-18 02:17:01 +02:00
octa::detail::SetBase<T, A>, T, T, T, H, C, A, false
2015-06-16 23:19:20 +02:00
>;
Base p_table;
public:
using Key = T;
using Size = octa::Size;
using Difference = octa::Ptrdiff;
using Hasher = H;
using KeyEqual = C;
using Value = T;
using Reference = Value &;
using Pointer = octa::AllocatorPointer<A>;
using ConstPointer = octa::AllocatorConstPointer<A>;
using Range = octa::HashRange<T>;
using ConstRange = octa::HashRange<const T>;
using LocalRange = octa::BucketRange<T>;
using ConstLocalRange = octa::BucketRange<const T>;
using Allocator = A;
explicit Set(octa::Size size, const H &hf = H(),
const C &eqf = C(), const A &alloc = A()
): p_table(size, hf, eqf, alloc) {}
Set(): Set(0) {}
explicit Set(const A &alloc): Set(0, H(), C(), alloc) {}
Set(octa::Size size, const A &alloc): Set(size, H(), C(), alloc) {}
Set(octa::Size size, const H &hf, const A &alloc): Set(size, hf, C(), alloc) {}
Set(const Set &m): p_table(m.p_table,
octa::allocator_container_copy(m.p_table.get_alloc())) {}
Set(const Set &m, const A &alloc): p_table(m.p_table, alloc) {}
Set(Set &&m): p_table(octa::move(m.p_table)) {}
Set(Set &&m, const A &alloc): p_table(octa::move(m.p_table), alloc) {}
template<typename R>
Set(R range, octa::Size size = 0, const H &hf = H(),
const C &eqf = C(), const A &alloc = A(),
octa::EnableIf<
octa::IsInputRange<R>::value &&
octa::IsConvertible<RangeReference<R>, Value>::value,
bool
> = true
2015-06-17 22:33:49 +02:00
): p_table(size ? size : octa::detail::estimate_hrsize(range),
hf, eqf, alloc) {
2015-06-16 23:19:20 +02:00
for (; !range.empty(); range.pop_front())
emplace(range.front());
p_table.rehash_up();
}
template<typename R>
Set(R range, octa::Size size, const A &alloc)
: Set(range, size, H(), C(), alloc) {}
template<typename R>
Set(R range, octa::Size size, const H &hf, const A &alloc)
: Set(range, size, hf, C(), alloc) {}
Set(octa::InitializerList<Value> init, octa::Size size = 0,
const H &hf = H(), const C &eqf = C(), const A &alloc = A()
): Set(octa::each(init), size, hf, eqf, alloc) {}
Set(octa::InitializerList<Value> init, octa::Size size, const A &alloc)
: Set(octa::each(init), size, H(), C(), alloc) {}
Set(octa::InitializerList<Value> init, octa::Size size, const H &hf,
const A &alloc
): Set(octa::each(init), size, hf, C(), alloc) {}
Set &operator=(const Set &m) {
p_table = m.p_table;
return *this;
}
Set &operator=(Set &&m) {
p_table = octa::move(m.p_table);
return *this;
}
template<typename R>
octa::EnableIf<
octa::IsInputRange<R>::value &&
octa::IsConvertible<RangeReference<R>, Value>::value,
Set &
> operator=(R range) {
clear();
2015-06-17 22:33:49 +02:00
p_table.reserve_at_least(octa::detail::estimate_hrsize(range));
2015-06-16 23:19:20 +02:00
for (; !range.empty(); range.pop_front())
emplace(range.front());
p_table.rehash_up();
return *this;
}
Set &operator=(InitializerList<Value> il) {
const Value *beg = il.begin(), *end = il.end();
clear();
p_table.reserve_at_least(end - beg);
while (beg != end)
emplace(*beg++);
return *this;
}
bool empty() const { return p_table.empty(); }
octa::Size size() const { return p_table.size(); }
octa::Size max_size() const { return p_table.max_size(); }
octa::Size bucket_count() const { return p_table.bucket_count(); }
octa::Size max_bucket_count() const { return p_table.max_bucket_count(); }
octa::Size bucket(const T &key) const { return p_table.bucket(key); }
octa::Size bucket_size(octa::Size n) const { return p_table.bucket_size(n); }
void clear() { p_table.clear(); }
A get_allocator() const {
return p_table.get_alloc();
}
template<typename ...Args>
octa::Pair<Range, bool> emplace(Args &&...args) {
return p_table.emplace(octa::forward<Args>(args)...);
}
octa::Size erase(const T &key) {
2015-06-18 02:17:01 +02:00
return p_table.remove(key);
2015-06-16 23:19:20 +02:00
}
octa::Size count(const T &key) {
2015-06-18 02:17:01 +02:00
return p_table.count(key);
2015-06-16 23:19:20 +02:00
}
2015-06-16 23:51:57 +02:00
Range find(const Key &key) { return p_table.find(key); }
ConstRange find(const Key &key) const { return p_table.find(key); }
2015-06-16 23:19:20 +02:00
float load_factor() const { return p_table.load_factor(); }
float max_load_factor() const { return p_table.max_load_factor(); }
void max_load_factor(float lf) { p_table.max_load_factor(lf); }
void rehash(octa::Size count) {
p_table.rehash(count);
}
void reserve(octa::Size count) {
p_table.reserve(count);
}
Range each() { return p_table.each(); }
ConstRange each() const { return p_table.each(); }
ConstRange ceach() const { return p_table.ceach(); }
LocalRange each(octa::Size n) { return p_table.each(n); }
ConstLocalRange each(octa::Size n) const { return p_table.each(n); }
ConstLocalRange ceach(octa::Size n) const { return p_table.each(n); }
void swap(Set &v) {
octa::swap(p_table, v.p_table);
}
};
2015-06-17 22:25:34 +02:00
template<
typename T,
typename H = octa::ToHash<T>,
typename C = octa::Equal<T>,
typename A = octa::Allocator<T>
> struct Multiset {
private:
using Base = octa::detail::Hashtable<
2015-06-18 02:17:01 +02:00
octa::detail::SetBase<T, A>, T, T, T, H, C, A, true
2015-06-17 22:25:34 +02:00
>;
Base p_table;
public:
using Key = T;
using Size = octa::Size;
using Difference = octa::Ptrdiff;
using Hasher = H;
using KeyEqual = C;
using Value = T;
using Reference = Value &;
using Pointer = octa::AllocatorPointer<A>;
using ConstPointer = octa::AllocatorConstPointer<A>;
using Range = octa::HashRange<T>;
using ConstRange = octa::HashRange<const T>;
using LocalRange = octa::BucketRange<T>;
using ConstLocalRange = octa::BucketRange<const T>;
using Allocator = A;
explicit Multiset(octa::Size size, const H &hf = H(),
const C &eqf = C(), const A &alloc = A()
): p_table(size, hf, eqf, alloc) {}
Multiset(): Multiset(0) {}
explicit Multiset(const A &alloc): Multiset(0, H(), C(), alloc) {}
Multiset(octa::Size size, const A &alloc):
Multiset(size, H(), C(), alloc) {}
Multiset(octa::Size size, const H &hf, const A &alloc):
Multiset(size, hf, C(), alloc) {}
Multiset(const Multiset &m): p_table(m.p_table,
octa::allocator_container_copy(m.p_table.get_alloc())) {}
Multiset(const Multiset &m, const A &alloc): p_table(m.p_table, alloc) {}
Multiset(Multiset &&m): p_table(octa::move(m.p_table)) {}
Multiset(Multiset &&m, const A &alloc):
p_table(octa::move(m.p_table), alloc) {}
template<typename R>
Multiset(R range, octa::Size size = 0, const H &hf = H(),
const C &eqf = C(), const A &alloc = A(),
octa::EnableIf<
octa::IsInputRange<R>::value &&
octa::IsConvertible<RangeReference<R>, Value>::value,
bool
> = true
2015-06-17 22:33:49 +02:00
): p_table(size ? size : octa::detail::estimate_hrsize(range),
hf, eqf, alloc) {
2015-06-17 22:25:34 +02:00
for (; !range.empty(); range.pop_front())
emplace(range.front());
p_table.rehash_up();
}
template<typename R>
Multiset(R range, octa::Size size, const A &alloc)
: Multiset(range, size, H(), C(), alloc) {}
template<typename R>
Multiset(R range, octa::Size size, const H &hf, const A &alloc)
: Multiset(range, size, hf, C(), alloc) {}
Multiset(octa::InitializerList<Value> init, octa::Size size = 0,
const H &hf = H(), const C &eqf = C(), const A &alloc = A()
): Multiset(octa::each(init), size, hf, eqf, alloc) {}
Multiset(octa::InitializerList<Value> init, octa::Size size, const A &alloc)
: Multiset(octa::each(init), size, H(), C(), alloc) {}
Multiset(octa::InitializerList<Value> init, octa::Size size, const H &hf,
const A &alloc
): Multiset(octa::each(init), size, hf, C(), alloc) {}
Multiset &operator=(const Multiset &m) {
p_table = m.p_table;
return *this;
}
Multiset &operator=(Multiset &&m) {
p_table = octa::move(m.p_table);
return *this;
}
template<typename R>
octa::EnableIf<
octa::IsInputRange<R>::value &&
octa::IsConvertible<RangeReference<R>, Value>::value,
Multiset &
> operator=(R range) {
clear();
2015-06-17 22:33:49 +02:00
p_table.reserve_at_least(octa::detail::estimate_hrsize(range));
2015-06-17 22:25:34 +02:00
for (; !range.empty(); range.pop_front())
emplace(range.front());
p_table.rehash_up();
return *this;
}
Multiset &operator=(InitializerList<Value> il) {
const Value *beg = il.begin(), *end = il.end();
clear();
p_table.reserve_at_least(end - beg);
while (beg != end)
emplace(*beg++);
return *this;
}
bool empty() const { return p_table.empty(); }
octa::Size size() const { return p_table.size(); }
octa::Size max_size() const { return p_table.max_size(); }
octa::Size bucket_count() const { return p_table.bucket_count(); }
octa::Size max_bucket_count() const { return p_table.max_bucket_count(); }
octa::Size bucket(const T &key) const { return p_table.bucket(key); }
octa::Size bucket_size(octa::Size n) const { return p_table.bucket_size(n); }
void clear() { p_table.clear(); }
A get_allocator() const {
return p_table.get_alloc();
}
template<typename ...Args>
octa::Pair<Range, bool> emplace(Args &&...args) {
2015-06-18 02:17:01 +02:00
return p_table.emplace(octa::forward<Args>(args)...);
2015-06-17 22:25:34 +02:00
}
octa::Size erase(const T &key) {
2015-06-18 02:17:01 +02:00
return p_table.remove(key);
2015-06-17 22:25:34 +02:00
}
octa::Size count(const T &key) {
2015-06-18 02:17:01 +02:00
return p_table.count(key);
2015-06-17 22:25:34 +02:00
}
Range find(const T &key) { return p_table.find(key); }
ConstRange find(const T &key) const { return p_table.find(key); }
float load_factor() const { return p_table.load_factor(); }
float max_load_factor() const { return p_table.max_load_factor(); }
void max_load_factor(float lf) { p_table.max_load_factor(lf); }
void rehash(octa::Size count) {
p_table.rehash(count);
}
void reserve(octa::Size count) {
p_table.reserve(count);
}
Range each() { return p_table.each(); }
ConstRange each() const { return p_table.each(); }
ConstRange ceach() const { return p_table.ceach(); }
LocalRange each(octa::Size n) { return p_table.each(n); }
ConstLocalRange each(octa::Size n) const { return p_table.each(n); }
ConstLocalRange ceach(octa::Size n) const { return p_table.each(n); }
void swap(Multiset &v) {
octa::swap(p_table, v.p_table);
}
};
2015-06-16 23:19:20 +02:00
} /* namespace detail */
#endif