util/AllocatedArray: add noexcept

This commit is contained in:
Max Kellermann 2018-12-28 17:17:28 +01:00
parent af7b928d7c
commit 2cb36590b2

View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2010-2016 Max Kellermann <max.kellermann@gmail.com>
* Copyright 2010-2018 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -57,12 +57,12 @@ protected:
public:
constexpr AllocatedArray() = default;
explicit AllocatedArray(size_type _size)
explicit AllocatedArray(size_type _size) noexcept
:buffer{new T[_size], _size} {
assert(size() == 0 || buffer.data != nullptr);
}
explicit AllocatedArray(const AllocatedArray &other)
explicit AllocatedArray(const AllocatedArray &other) noexcept
:buffer{new T[other.buffer.size], other.buffer.size} {
assert(size() == 0 || buffer.data != nullptr);
assert(other.size() == 0 || other.buffer.data != nullptr);
@ -70,16 +70,16 @@ public:
std::copy_n(other.buffer.data, buffer.size, buffer.data);
}
AllocatedArray(AllocatedArray &&other)
AllocatedArray(AllocatedArray &&other) noexcept
:buffer(other.buffer) {
other.buffer = nullptr;
}
~AllocatedArray() {
~AllocatedArray() noexcept {
delete[] buffer.data;
}
AllocatedArray &operator=(const AllocatedArray &other) {
AllocatedArray &operator=(const AllocatedArray &other) noexcept {
assert(size() == 0 || buffer.data != nullptr);
assert(other.size() == 0 || other.buffer.data != nullptr);
@ -91,57 +91,57 @@ public:
return *this;
}
AllocatedArray &operator=(AllocatedArray &&other) {
AllocatedArray &operator=(AllocatedArray &&other) noexcept {
std::swap(buffer, other.buffer);
return *this;
}
constexpr bool IsNull() const {
constexpr bool IsNull() const noexcept {
return buffer.IsNull();
}
constexpr bool operator==(std::nullptr_t) const {
constexpr bool operator==(std::nullptr_t) const noexcept {
return buffer == nullptr;
}
constexpr bool operator!=(std::nullptr_t) const {
constexpr bool operator!=(std::nullptr_t) const noexcept {
return buffer != nullptr;
}
/**
* Returns true if no memory was allocated so far.
*/
constexpr bool empty() const {
constexpr bool empty() const noexcept {
return buffer.empty();
}
/**
* Returns the number of allocated elements.
*/
constexpr size_type size() const {
constexpr size_type size() const noexcept {
return buffer.size;
}
reference_type front() {
reference_type front() noexcept {
return buffer.front();
}
const_reference_type front() const {
const_reference_type front() const noexcept {
return buffer.front();
}
reference_type back() {
reference_type back() noexcept {
return buffer.back();
}
const_reference_type back() const {
const_reference_type back() const noexcept {
return buffer.back();
}
/**
* Returns one element. No bounds checking.
*/
reference_type operator[](size_type i) {
reference_type operator[](size_type i) noexcept {
assert(i < size());
return buffer.data[i];
@ -150,32 +150,32 @@ public:
/**
* Returns one constant element. No bounds checking.
*/
const_reference_type operator[](size_type i) const {
const_reference_type operator[](size_type i) const noexcept {
assert(i < size());
return buffer.data[i];
}
iterator begin() {
iterator begin() noexcept {
return buffer.begin();
}
constexpr const_iterator begin() const {
constexpr const_iterator begin() const noexcept {
return buffer.cbegin();
}
iterator end() {
iterator end() noexcept {
return buffer.end();
}
constexpr const_iterator end() const {
constexpr const_iterator end() const noexcept {
return buffer.cend();
}
/**
* Resizes the array, discarding old data.
*/
void ResizeDiscard(size_type _size) {
void ResizeDiscard(size_type _size) noexcept {
if (_size == buffer.size)
return;
@ -191,7 +191,7 @@ public:
* Similar to ResizeDiscard(), but will never shrink the array to
* avoid expensive heap operations.
*/
void GrowDiscard(size_type _size) {
void GrowDiscard(size_type _size) noexcept {
if (_size > buffer.size)
ResizeDiscard(_size);
}
@ -200,7 +200,7 @@ public:
* Grows the array to the specified size, preserving the value of a
* range of elements, starting from the beginning.
*/
void GrowPreserve(size_type _size, size_type preserve) {
void GrowPreserve(size_type _size, size_type preserve) noexcept {
if (_size <= buffer.size)
return;
@ -219,7 +219,7 @@ public:
* larger than the current size. Excess elements are not used (but
* they are still allocated).
*/
void SetSize(size_type _size) {
void SetSize(size_type _size) noexcept {
assert(_size <= buffer.size);
buffer.size = _size;