You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
261 regels
4.9 KiB
261 regels
4.9 KiB
#pragma once
|
|
|
|
#include <gp/buffer.hpp>
|
|
#include <gp/allocator/allocator.hpp>
|
|
|
|
#include <initializer_list>
|
|
|
|
namespace gp{
|
|
template<typename T>
|
|
class vector{
|
|
T* ary;
|
|
size_t sz;
|
|
size_t cap;
|
|
gp::reference_wrapper<allocator> alloc;
|
|
public:
|
|
using associated_iterator = pointer_iterator<T, 1>;
|
|
using associated_const_iterator = const_pointer_iterator<T, 1>;
|
|
using associated_riterator = pointer_iterator<T, -1>;
|
|
using associated_const_riterator = const_pointer_iterator<T, -1>;
|
|
|
|
vector(allocator& v)
|
|
: ary()
|
|
, alloc(v)
|
|
{}
|
|
|
|
vector(const vector& oth)
|
|
{
|
|
sz = 0;
|
|
cap = 0;
|
|
ary = nullptr;
|
|
alloc = oth.alloc;
|
|
gp_config::assertion(reserve(oth.size()), "could not reserve space on building");
|
|
sz = oth.size();
|
|
cap = oth.size();
|
|
auto it_l = begin();
|
|
auto it_o = oth.cbegin();
|
|
for(size_t i = 0; i < sz; ++i)
|
|
{
|
|
new(&*(it_l++)) T(*(it_o++));
|
|
}
|
|
}
|
|
|
|
vector(vector&& oth)
|
|
: ary(oth.ary)
|
|
, sz(oth.sz)
|
|
, cap(oth.cap)
|
|
, alloc(oth.alloc)
|
|
{
|
|
oth.ary = nullptr;
|
|
}
|
|
|
|
/* TODO: Build the templated equivalents
|
|
array(T (& oth)[sz]) {
|
|
gp::move_uninitialized<T>(
|
|
gp::nameless_range<int*>(oth, oth+sz),
|
|
gp::nameless_range<associated_iterator>(begin(), end())
|
|
);
|
|
}
|
|
|
|
array(T (&& oth)[sz]) {
|
|
gp::move_uninitialized(
|
|
gp::nameless_range<int*>((T*)oth, (T*)oth+sz),
|
|
gp::nameless_range<associated_iterator>(begin(), end())
|
|
);
|
|
}*/
|
|
|
|
vector& operator=(vector& oth)
|
|
{
|
|
gp_config::assertion(reserve(oth.size()), "could not reserve space on assign");
|
|
for(size_t i = 0; i < gp::min(sz, oth.sz); ++i)
|
|
{
|
|
ary[i]=oth[i];
|
|
}
|
|
if(sz < oth.sz) {
|
|
for(size_t i = sz; i < oth.sz; ++i) {
|
|
new(ary+i) T(oth[i]);
|
|
}
|
|
} else if(sz > oth.sz) {
|
|
for(size_t i = oth.sz; i < sz; ++i) {
|
|
ary[i]->~T();
|
|
}
|
|
}
|
|
sz = oth.sz;
|
|
return *this;
|
|
}
|
|
|
|
vector& operator=(vector&& oth)
|
|
{
|
|
gp::swap(ary, oth.ary);
|
|
gp::swap(alloc, oth.alloc);
|
|
gp::swap(sz, oth.sz);
|
|
gp::swap(cap, oth.cap);
|
|
return *this;
|
|
}
|
|
|
|
constexpr T& operator[] (size_t off)
|
|
{
|
|
if constexpr (gp_config::has_buffer_bounds)
|
|
{
|
|
gp_config::assertion(
|
|
off < sz,
|
|
"Array bounds infringed"
|
|
);
|
|
}
|
|
return ary[off];
|
|
}
|
|
|
|
~vector()
|
|
{
|
|
if(ary)
|
|
{
|
|
for(auto& elem : *this) {
|
|
elem->~T();
|
|
}
|
|
gp_config::assertion(alloc.get().deallocate(ary), "could not deallocate");
|
|
}
|
|
}
|
|
|
|
bool grow() {
|
|
if(sz == cap) return reserve(1 + sz + (sz >> 1));
|
|
return true;
|
|
}
|
|
|
|
bool reserve(size_t new_cap) {
|
|
if(new_cap <= cap) return true;
|
|
|
|
size_t new_data_size = new_cap*sizeof(T);
|
|
|
|
if(alloc.get().try_reallocate(ary, new_data_size)) return true;
|
|
|
|
if(T* new_ary = alloc.get().allocate(new_data_size); new_ary) {
|
|
auto new_it = new_ary;
|
|
for(auto* elem : *this) {
|
|
++new_it = gp::move(elem);
|
|
}
|
|
|
|
gp_config::assertion(alloc.get().deallocate(ary), "failed to deallocate old range");
|
|
|
|
ary = new_ary;
|
|
cap = new_cap;
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
constexpr const T& operator[] (size_t off) const
|
|
{
|
|
return ary[off];
|
|
}
|
|
|
|
constexpr size_t size() const
|
|
{
|
|
return sz;
|
|
}
|
|
|
|
constexpr size_t capacity() const
|
|
{
|
|
return cap;
|
|
}
|
|
|
|
constexpr bool push_back(T& value) {
|
|
if(grow()) {
|
|
new(ary+sz) T(value);
|
|
sz++;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
constexpr bool push_back(T&& value) {
|
|
if(grow()) {
|
|
new(ary+sz) T(gp::move(value));
|
|
sz++;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template<typename ...U>
|
|
constexpr bool emplace_back(U&&... value) {
|
|
if(grow()) {
|
|
new(ary+sz) T(gp::forward<U>(value)...);
|
|
sz++;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
constexpr gp::optional<T> pop_back() {
|
|
if(sz == 0) return gp::nullopt;
|
|
sz--;
|
|
gp::optional<T> ret_val = gp::move(ary[sz]);
|
|
ary[sz]->~T();
|
|
return gp::move(ret_val);
|
|
}
|
|
|
|
constexpr pointer_iterator<T, 1> begin()
|
|
{
|
|
return associated_iterator(&ary[0]);
|
|
}
|
|
|
|
constexpr pointer_iterator<T, 1> end()
|
|
{
|
|
return associated_iterator(&ary[sz]);
|
|
}
|
|
|
|
constexpr const_pointer_iterator<T, 1> cbegin() const
|
|
{
|
|
return associated_const_iterator(&ary[0]);
|
|
}
|
|
|
|
constexpr const_pointer_iterator<T, 1> cend() const
|
|
{
|
|
return associated_const_iterator(&ary[sz]);
|
|
}
|
|
|
|
constexpr pointer_iterator<T, -1> rbegin()
|
|
{
|
|
return associated_riterator(&ary[sz-1]);
|
|
}
|
|
|
|
constexpr pointer_iterator<T, -1> rend()
|
|
{
|
|
return associated_riterator(ary-1);
|
|
}
|
|
|
|
constexpr const_pointer_iterator<T, -1> crbegin() const
|
|
{
|
|
return associated_const_riterator(&ary[sz-1]);
|
|
}
|
|
|
|
constexpr const_pointer_iterator<T, -1> crend() const
|
|
{
|
|
return associated_const_riterator(ary-1);
|
|
}
|
|
|
|
constexpr bool operator==(const vector& oth) const
|
|
{
|
|
for(size_t idx = 0; idx<sz; idx++)
|
|
{
|
|
if(ary[idx] != oth.ary[idx])
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
constexpr bool operator!=(const vector& oth) const
|
|
{
|
|
return !(*this == oth);
|
|
}
|
|
|
|
gp::buffer<T> as_buffer()
|
|
{
|
|
return gp::buffer<T>{(T*)ary, (T*)ary+sz};
|
|
}
|
|
};
|
|
}
|