2015-04-05 23:05:21 +00:00
|
|
|
/* Self-expanding dynamic array implementation for OctaSTD.
|
|
|
|
*
|
2015-04-12 20:41:02 +00:00
|
|
|
* This file is part of OctaSTD. See COPYING.md for futher information.
|
2015-04-05 23:05:21 +00:00
|
|
|
*/
|
|
|
|
|
2015-04-11 20:00:10 +00:00
|
|
|
#ifndef OCTA_VECTOR_H
|
|
|
|
#define OCTA_VECTOR_H
|
2015-04-05 23:05:21 +00:00
|
|
|
|
2015-04-14 21:16:06 +00:00
|
|
|
#include <string.h>
|
2015-04-15 21:38:15 +00:00
|
|
|
#include <stddef.h>
|
2015-04-14 21:16:06 +00:00
|
|
|
|
2015-04-13 21:25:31 +00:00
|
|
|
#include "octa/new.h"
|
|
|
|
#include "octa/traits.h"
|
2015-04-15 21:38:15 +00:00
|
|
|
#include "octa/utility.h"
|
2015-04-15 23:18:00 +00:00
|
|
|
#include "octa/range.h"
|
2015-04-05 23:05:21 +00:00
|
|
|
|
2015-04-11 20:00:10 +00:00
|
|
|
namespace octa {
|
2015-04-16 00:47:02 +00:00
|
|
|
/* Implementation of vector ranges
|
|
|
|
*
|
|
|
|
* See the range specification as documented on OctaForge wiki.
|
|
|
|
*/
|
2015-04-15 23:18:00 +00:00
|
|
|
template<typename T>
|
2015-04-17 19:14:43 +00:00
|
|
|
struct VectorRange: Range<VectorRange<T>, RandomAccessRange, T> {
|
2015-04-15 23:18:00 +00:00
|
|
|
VectorRange(): p_beg(nullptr), p_end(nullptr) {}
|
|
|
|
VectorRange(const VectorRange &v): p_beg(v.p_beg), p_end(v.p_end) {}
|
2015-04-16 00:47:02 +00:00
|
|
|
VectorRange(VectorRange &&v): p_beg(v.p_beg), p_end(v.p_end) {
|
|
|
|
v.p_beg = v.p_end = nullptr;
|
|
|
|
}
|
2015-04-15 23:18:00 +00:00
|
|
|
VectorRange(T *beg, T *end): p_beg(beg), p_end(end) {}
|
|
|
|
|
2015-04-16 01:07:32 +00:00
|
|
|
/* satisfy InputRange / ForwardRange */
|
2015-04-15 23:18:00 +00:00
|
|
|
bool empty() const { return p_beg == nullptr; }
|
|
|
|
|
|
|
|
void pop_first() {
|
|
|
|
if (p_beg == nullptr) return;
|
|
|
|
if (++p_beg == p_end) p_beg = p_end = nullptr;
|
|
|
|
}
|
|
|
|
|
2015-04-16 00:47:02 +00:00
|
|
|
T &first() { return *p_beg; }
|
|
|
|
const T &first() const { return *p_beg; }
|
|
|
|
|
2015-04-16 01:40:49 +00:00
|
|
|
bool operator==(const VectorRange &v) const {
|
2015-04-16 00:18:18 +00:00
|
|
|
return p_beg == v.p_beg && p_end == v.p_end;
|
2015-04-15 23:18:00 +00:00
|
|
|
}
|
2015-04-16 01:40:49 +00:00
|
|
|
bool operator!=(const VectorRange &v) const {
|
2015-04-16 00:47:02 +00:00
|
|
|
return p_beg != v.p_beg || p_end != v.p_end;
|
|
|
|
}
|
2015-04-15 23:18:00 +00:00
|
|
|
|
|
|
|
/* satisfy BidirectionalRange */
|
|
|
|
void pop_last() {
|
|
|
|
if (p_end-- == p_beg) { p_end = nullptr; return; }
|
|
|
|
if (p_end == p_beg) p_beg = p_end = nullptr;
|
|
|
|
}
|
|
|
|
|
2015-04-16 00:47:02 +00:00
|
|
|
T &last() { return *(p_end - 1); }
|
|
|
|
const T &last() const { return *(p_end - 1); }
|
|
|
|
|
2015-04-15 23:18:00 +00:00
|
|
|
/* satisfy RandomAccessRange */
|
2015-04-16 00:47:02 +00:00
|
|
|
size_t length() const { return p_end - p_beg; }
|
2015-04-15 23:18:00 +00:00
|
|
|
|
2015-04-16 00:47:02 +00:00
|
|
|
T &operator[](size_t i) { return p_beg[i]; }
|
2015-04-15 23:18:00 +00:00
|
|
|
const T &operator[](size_t i) const { return p_beg[i]; }
|
|
|
|
|
2015-04-16 00:07:58 +00:00
|
|
|
private:
|
|
|
|
T *p_beg, *p_end;
|
2015-04-15 23:18:00 +00:00
|
|
|
};
|
|
|
|
|
2015-04-05 23:05:21 +00:00
|
|
|
template<typename T>
|
2015-04-12 20:41:02 +00:00
|
|
|
class Vector {
|
2015-04-14 21:16:06 +00:00
|
|
|
T *p_buf;
|
|
|
|
size_t p_len, p_cap;
|
2015-04-05 23:05:21 +00:00
|
|
|
|
2015-04-16 21:44:25 +00:00
|
|
|
void insert_base(size_t idx, size_t n) {
|
|
|
|
if (p_len + n > p_cap) reserve(p_len + n);
|
|
|
|
p_len += n;
|
|
|
|
for (size_t i = p_len - 1; i > idx + n - 1; --i) {
|
|
|
|
if (octa::IsClass<T>::value && i < (p_len - n)) {
|
|
|
|
p_buf[i].~T();
|
|
|
|
}
|
|
|
|
new (&p_buf[i]) T(move(p_buf[i - n]));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-04-05 23:05:21 +00:00
|
|
|
public:
|
2015-04-14 21:16:06 +00:00
|
|
|
enum { MIN_SIZE = 8 };
|
|
|
|
|
2015-04-15 21:09:20 +00:00
|
|
|
struct type {
|
2015-04-16 19:40:41 +00:00
|
|
|
typedef T value;
|
|
|
|
typedef T &reference;
|
|
|
|
typedef const T &const_reference;
|
|
|
|
typedef T *pointer;
|
|
|
|
typedef const T *const_pointer;
|
|
|
|
typedef size_t size;
|
|
|
|
typedef ptrdiff_t difference;
|
|
|
|
typedef VectorRange< T> range;
|
|
|
|
typedef VectorRange<const T> const_range;
|
2015-04-15 21:09:20 +00:00
|
|
|
};
|
|
|
|
|
2015-04-16 00:47:02 +00:00
|
|
|
Vector(): p_buf(nullptr), p_len(0), p_cap(0) {}
|
2015-04-05 23:05:21 +00:00
|
|
|
|
2015-04-14 21:21:17 +00:00
|
|
|
explicit Vector(size_t n, const T &val = T()): Vector() {
|
2015-04-14 21:16:06 +00:00
|
|
|
p_buf = new uchar[n * sizeof(T)];
|
|
|
|
p_len = p_cap = n;
|
|
|
|
T *cur = p_buf, *last = p_buf + n;
|
|
|
|
while (cur != last) new (cur++) T(val);
|
|
|
|
}
|
|
|
|
|
2015-04-15 21:38:15 +00:00
|
|
|
Vector(const Vector &v): Vector() {
|
2015-04-14 21:21:17 +00:00
|
|
|
*this = v;
|
|
|
|
}
|
|
|
|
|
2015-04-14 22:04:51 +00:00
|
|
|
Vector(Vector &&v): p_buf(v.p_buf), p_len(v.p_len), p_cap(v.p_cap) {
|
2015-04-15 21:41:32 +00:00
|
|
|
v.p_buf = nullptr;
|
2015-04-14 22:04:51 +00:00
|
|
|
v.p_len = v.p_cap = 0;
|
|
|
|
}
|
|
|
|
|
2015-04-17 17:33:41 +00:00
|
|
|
Vector(InitializerList<T> v): Vector() {
|
2015-04-16 21:33:31 +00:00
|
|
|
size_t len = v.length();
|
|
|
|
const T *ptr = v.get();
|
|
|
|
reserve(len);
|
|
|
|
for (size_t i = 0; i < len; ++i)
|
|
|
|
new (&p_buf[i]) T(ptr[i]);
|
|
|
|
p_len = len;
|
2015-04-15 21:38:15 +00:00
|
|
|
}
|
|
|
|
|
2015-04-14 21:16:06 +00:00
|
|
|
~Vector() {
|
|
|
|
clear();
|
2015-04-05 23:05:21 +00:00
|
|
|
}
|
|
|
|
|
2015-04-14 21:16:06 +00:00
|
|
|
void clear() {
|
|
|
|
if (p_cap > 0) {
|
|
|
|
if (octa::IsClass<T>::value) {
|
|
|
|
T *cur = p_buf, *last = p_buf + p_len;
|
2015-04-15 21:38:15 +00:00
|
|
|
while (cur != last) (*cur++).~T();
|
2015-04-14 21:16:06 +00:00
|
|
|
}
|
|
|
|
delete[] (uchar *)p_buf;
|
2015-04-15 21:41:32 +00:00
|
|
|
p_buf = nullptr;
|
2015-04-14 21:16:06 +00:00
|
|
|
p_len = p_cap = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
Vector<T> &operator=(const Vector<T> &v) {
|
|
|
|
if (this == &v) return *this;
|
|
|
|
|
|
|
|
if (p_cap >= v.p_cap) {
|
|
|
|
if (octa::IsClass<T>::value) {
|
|
|
|
T *cur = p_buf, *last = p_buf + p_len;
|
|
|
|
while (cur != last) (*cur++).~T();
|
|
|
|
}
|
|
|
|
p_len = v.p_len;
|
|
|
|
} else {
|
|
|
|
clear();
|
|
|
|
p_len = v.p_len;
|
|
|
|
p_cap = v.p_cap;
|
|
|
|
p_buf = (T *)new uchar[p_cap * sizeof(T)];
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!octa::IsClass<T>::value) {
|
|
|
|
memcpy(p_buf, v.p_buf, p_len * sizeof(T));
|
|
|
|
} else {
|
|
|
|
T *cur = p_buf, *last = p_buf + p_len;
|
|
|
|
T *vbuf = v.p_buf;
|
|
|
|
while (cur != last) {
|
|
|
|
new (cur++) T(*vbuf++);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-04-05 23:05:21 +00:00
|
|
|
return *this;
|
|
|
|
}
|
2015-04-12 20:41:02 +00:00
|
|
|
|
2015-04-14 21:16:06 +00:00
|
|
|
void resize(size_t n, const T &v = T()) {
|
|
|
|
size_t len = p_len;
|
|
|
|
reserve(n);
|
|
|
|
p_len = n;
|
|
|
|
if (!octa::IsClass<T>::value) {
|
|
|
|
for (size_t i = len; i < p_len; ++i) {
|
|
|
|
p_buf[i] = T(v);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
T *first = p_buf + len;
|
|
|
|
T *last = p_buf + p_len;
|
|
|
|
while (first != last) new (first++) T(v);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void reserve(size_t n) {
|
|
|
|
if (n <= p_len) {
|
|
|
|
if (n == p_len) return;
|
|
|
|
while (p_len > n) pop();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
size_t oc = p_cap;
|
|
|
|
if (!oc) {
|
2015-04-17 17:33:41 +00:00
|
|
|
p_cap = (n > MIN_SIZE) ? n : size_t(MIN_SIZE);
|
2015-04-14 21:16:06 +00:00
|
|
|
} else {
|
|
|
|
while (p_cap < n) p_cap *= 2;
|
|
|
|
}
|
|
|
|
T *tmp = (T *)new uchar[p_cap * sizeof(T)];
|
|
|
|
if (oc > 0) {
|
|
|
|
if (!octa::IsClass<T>::value) {
|
|
|
|
memcpy(tmp, p_buf, p_len * sizeof(T));
|
|
|
|
} else {
|
|
|
|
T *cur = p_buf, *tcur = tmp, *last = tmp + p_len;
|
|
|
|
while (tcur != last) {
|
2015-04-14 22:14:19 +00:00
|
|
|
new (tcur++) T(move(*cur));
|
2015-04-14 21:16:06 +00:00
|
|
|
(*cur).~T();
|
|
|
|
++cur;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
delete[] (uchar *)p_buf;
|
|
|
|
}
|
|
|
|
p_buf = tmp;
|
|
|
|
}
|
|
|
|
|
|
|
|
T &operator[](size_t i) { return p_buf[i]; }
|
|
|
|
const T &operator[](size_t i) const { return p_buf[i]; }
|
|
|
|
|
|
|
|
T &at(size_t i) { return p_buf[i]; }
|
|
|
|
const T &at(size_t i) const { return p_buf[i]; }
|
|
|
|
|
2015-04-12 20:41:02 +00:00
|
|
|
T &push(const T &v) {
|
2015-04-14 21:16:06 +00:00
|
|
|
if (p_len == p_cap) reserve(p_len + 1);
|
|
|
|
new (&p_buf[p_len]) T(v);
|
|
|
|
return p_buf[p_len++];
|
2015-04-12 20:41:02 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
T &push() {
|
2015-04-14 21:16:06 +00:00
|
|
|
if (p_len == p_cap) reserve(p_len + 1);
|
|
|
|
new (&p_buf[p_len]) T;
|
|
|
|
return p_buf[p_len++];
|
2015-04-12 20:41:02 +00:00
|
|
|
}
|
|
|
|
|
2015-04-14 22:04:51 +00:00
|
|
|
template<typename ...U>
|
|
|
|
T &emplace_back(U &&...args) {
|
|
|
|
if (p_len == p_cap) reserve(p_len + 1);
|
2015-04-14 22:14:19 +00:00
|
|
|
new (&p_buf[p_len]) T(forward<U>(args)...);
|
2015-04-14 22:04:51 +00:00
|
|
|
return p_buf[p_len++];
|
|
|
|
}
|
|
|
|
|
2015-04-14 21:16:06 +00:00
|
|
|
void pop() {
|
|
|
|
if (octa::IsClass<T>::value) {
|
|
|
|
p_buf[--p_len].~T();
|
|
|
|
} else {
|
|
|
|
--p_len;
|
2015-04-12 20:41:02 +00:00
|
|
|
}
|
|
|
|
}
|
2015-04-14 21:16:06 +00:00
|
|
|
|
2015-04-15 21:09:20 +00:00
|
|
|
T &pop_ret() {
|
|
|
|
return p_buf[--p_len];
|
|
|
|
}
|
|
|
|
|
|
|
|
T &first() { return p_buf[0]; }
|
|
|
|
const T &first() const { return p_buf[0]; };
|
|
|
|
|
|
|
|
T &last() { return p_buf[p_len - 1]; }
|
|
|
|
const T &last() const { return p_buf[p_len - 1]; }
|
|
|
|
|
2015-04-14 21:16:06 +00:00
|
|
|
T *get() { return p_buf; }
|
2015-04-15 21:09:20 +00:00
|
|
|
const T *get() const { return p_buf; }
|
2015-04-14 21:16:06 +00:00
|
|
|
|
|
|
|
size_t length() const { return p_len; }
|
|
|
|
size_t capacity() const { return p_cap; }
|
|
|
|
|
|
|
|
bool empty() const { return (p_len == 0); }
|
2015-04-15 21:09:20 +00:00
|
|
|
|
|
|
|
bool in_range(size_t idx) { return idx < p_len; }
|
|
|
|
bool in_range(int idx) { return idx >= 0 && idx < p_len; }
|
|
|
|
bool in_range(const T *ptr) {
|
|
|
|
return ptr >= p_buf && ptr < &p_buf[p_len];
|
|
|
|
}
|
|
|
|
|
|
|
|
T *disown() {
|
|
|
|
T *r = p_buf;
|
2015-04-15 21:41:32 +00:00
|
|
|
p_buf = nullptr;
|
2015-04-15 21:09:20 +00:00
|
|
|
p_len = p_cap = 0;
|
|
|
|
return r;
|
|
|
|
}
|
2015-04-15 21:38:15 +00:00
|
|
|
|
2015-04-16 21:44:25 +00:00
|
|
|
T *insert(size_t idx, T &&v) {
|
|
|
|
insert_base(idx, 1);
|
|
|
|
p_buf[idx].~T();
|
|
|
|
new (&p_buf[idx]) T(forward<T>(v));
|
|
|
|
return &p_buf[idx];
|
|
|
|
}
|
|
|
|
|
2015-04-16 21:33:31 +00:00
|
|
|
T *insert(size_t idx, const T &v) {
|
2015-04-16 21:44:25 +00:00
|
|
|
insert_base(idx, 1);
|
2015-04-16 21:33:31 +00:00
|
|
|
p_buf[idx].~T();
|
|
|
|
new (&p_buf[idx]) T(v);
|
|
|
|
return &p_buf[idx];
|
2015-04-15 21:38:15 +00:00
|
|
|
}
|
|
|
|
|
2015-04-16 21:33:31 +00:00
|
|
|
T *insert(size_t idx, size_t n, const T &v) {
|
2015-04-16 21:44:25 +00:00
|
|
|
insert_base(idx, n);
|
2015-04-16 21:33:31 +00:00
|
|
|
for (size_t i = 0; i < n; ++i) {
|
|
|
|
p_buf[idx + i].~T();
|
|
|
|
new (&p_buf[idx + i]) T(v);
|
|
|
|
}
|
2015-04-15 21:38:15 +00:00
|
|
|
return &p_buf[idx];
|
|
|
|
}
|
2015-04-15 23:18:00 +00:00
|
|
|
|
2015-04-16 22:06:39 +00:00
|
|
|
template<typename U>
|
2015-04-16 22:18:30 +00:00
|
|
|
T *insert_range(size_t idx, U range) {
|
2015-04-16 22:06:39 +00:00
|
|
|
size_t len = range.length();
|
|
|
|
insert_base(idx, len);
|
|
|
|
for (size_t i = 0; i < len; ++i) {
|
|
|
|
p_buf[idx + i].~T();
|
|
|
|
new (&p_buf[idx + i]) T(range.first());
|
|
|
|
range.pop_first();
|
|
|
|
}
|
|
|
|
return &p_buf[idx];
|
|
|
|
}
|
|
|
|
|
2015-04-17 17:33:41 +00:00
|
|
|
T *insert(size_t idx, InitializerList<T> il) {
|
2015-04-16 22:26:10 +00:00
|
|
|
return insert_range(idx, VectorRange<const T>(il.get(),
|
2015-04-16 22:11:56 +00:00
|
|
|
il.get() + il.length()));
|
|
|
|
}
|
|
|
|
|
2015-04-16 19:40:41 +00:00
|
|
|
typename type::range each() {
|
2015-04-15 23:18:00 +00:00
|
|
|
return VectorRange<T>(p_buf, p_buf + p_len);
|
|
|
|
}
|
2015-04-16 19:40:41 +00:00
|
|
|
typename type::const_range each() const {
|
2015-04-16 19:35:10 +00:00
|
|
|
return VectorRange<const T>(p_buf, p_buf + p_len);
|
|
|
|
}
|
2015-04-05 23:05:21 +00:00
|
|
|
};
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|