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[ox/std] Replace reinterpret_cast with bit_cast in Vector

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This commit is contained in:
Gary Talent
2020-10-20 19:28:46 -05:00
parent 84dfb17f7f
commit 985b2b57ba
2 changed files with 17 additions and 16 deletions
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4
deps/ox/src/ox/std/bit.hpp vendored
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@@ -1,5 +1,5 @@
/*
* Copyright 2015 - 2018 gtalent2@gmail.com
* Copyright 2015 - 2020 gary@drinkingtea.net
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -16,7 +16,7 @@ namespace ox {
template<typename To, typename From>
typename enable_if<sizeof(To) == sizeof(From), To>::type bit_cast(From src) noexcept {
To dst = {};
To dst;
memcpy(&dst, &src, sizeof(src));
return dst;
}

29
deps/ox/src/ox/std/vector.hpp vendored
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@@ -8,6 +8,7 @@
#pragma once
#include "bit.hpp"
#include "new.hpp"
#include "types.hpp"
#include "utility.hpp"
@@ -37,17 +38,17 @@ class Vector {
Vector &operator=(Vector &&other);
T &operator[](std::size_t i) noexcept;
[[nodiscard]] T &operator[](std::size_t i) noexcept;
const T &operator[](std::size_t i) const noexcept;
[[nodiscard]] const T &operator[](std::size_t i) const noexcept;
T &front() noexcept;
[[nodiscard]] T &front() noexcept;
const T &front() const noexcept;
[[nodiscard]] const T &front() const noexcept;
T &back() noexcept;
[[nodiscard]] T &back() noexcept;
const T &back() const noexcept;
[[nodiscard]] const T &back() const noexcept;
std::size_t size() const noexcept;
@@ -57,9 +58,9 @@ class Vector {
void resize(std::size_t size);
T *data() noexcept;
[[nodiscard]] T *data() noexcept;
const T *data() const noexcept;
[[nodiscard]] const T *data() const noexcept;
[[nodiscard]] bool contains(T) const;
@@ -94,7 +95,7 @@ template<typename T>
Vector<T>::Vector(std::size_t size) {
m_size = size;
m_cap = m_size;
m_items = reinterpret_cast<T*>(new AllocAlias<T>[m_cap]);
m_items = bit_cast<T*>(new AllocAlias<T>[m_cap]);
for (std::size_t i = 0; i < size; i++) {
m_items[i] = {};
}
@@ -104,7 +105,7 @@ template<typename T>
Vector<T>::Vector(const Vector<T> &other) {
m_size = other.m_size;
m_cap = other.m_cap;
m_items = reinterpret_cast<T*>(new AllocAlias<T>[m_cap]);
m_items = bit_cast<T*>(new AllocAlias<T>[m_cap]);
for (std::size_t i = 0; i < m_size; i++) {
m_items[i] = ox::move(other.m_items[i]);
}
@@ -127,7 +128,7 @@ Vector<T>::~Vector() {
m_items[i].~T();
}
}
delete[] reinterpret_cast<AllocAlias<T>*>(m_items);
delete[] bit_cast<AllocAlias<T>*>(m_items);
m_items = nullptr;
}
@@ -136,7 +137,7 @@ Vector<T> &Vector<T>::operator=(const Vector<T> &other) {
this->~Vector<T>();
m_size = other.m_size;
m_cap = other.m_cap;
m_items = reinterpret_cast<T*>(new AllocAlias<T>[m_cap]);
m_items = bit_cast<T*>(new AllocAlias<T>[m_cap]);
for (std::size_t i = 0; i < m_size; i++) {
m_items[i] = other.m_items[i];
}
@@ -293,7 +294,7 @@ template<typename T>
void Vector<T>::expandCap(std::size_t cap) {
auto oldItems = m_items;
m_cap = cap;
m_items = reinterpret_cast<T*>(new AllocAlias<T>[m_cap]);
m_items = bit_cast<T*>(new AllocAlias<T>[m_cap]);
if (oldItems) { // move over old items
const auto itRange = cap > m_size ? m_size : cap;
for (std::size_t i = 0; i < itRange; i++) {
@@ -302,7 +303,7 @@ void Vector<T>::expandCap(std::size_t cap) {
for (std::size_t i = itRange; i < m_cap; i++) {
new (&m_items[i]) T;
}
delete[] reinterpret_cast<AllocAlias<T>*>(oldItems);
delete[] bit_cast<AllocAlias<T>*>(oldItems);
}
}