C++ 概念： TriviallyCopyable

 

C++

语言

概念

实用工具库

字符串库

集装箱库

算法库

迭代器库

Numerics库

输入/输出库

本地化库

正则表达式库 （C++11）

原子操作库 （C++11）

线程的支持库 （C++11）

 

C++ 的概念

基础
DefaultConstructible CopyAssignable CopyConstructible	MoveAssignable （C++11） MoveConstructible （C++11） Destructible
库
EqualityComparable LessThanComparable Swappable （C++11） ValueSwappable （C++11）	NullablePointer （C++11） Hash （C++11） Allocator
容器
Container SequenceContainer ReversibleContainer	AssociativeContainer AllocatorAwareContainer UnorderedAssociativeContainer （C++11）
容器元素
CopyInsertable （C++11） MoveInsertable （C++11）	EmplaceConstructible （C++11）
迭代器
Iterator OutputIterator InputIterator	ForwardIterator BidirectionalIterator RandomAccessIterator
随机数
SeedSequence （C++11） RandomNumberEngine （C++11）	RandomNumberDistribution （C++11） UniformRandomNumberGenerator （C++11） RandomNumberEngineAdaptor （C++11）
并发
BasicLockable （C++11） Lockable （C++11） TimedLockable （C++11）	Mutex （C++11） TimedMutex （C++11）
其它
CharTraits pos_type off_type Clock （C++11）	UnaryTypeTrait （C++11） BinaryTypeTrait （C++11） TransformationTrait （C++11） TrivialClock （C++11）

 

要求

• 琐碎的拷贝构造函数

  Original:

  Trivial copy constructor

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• 琐碎的移动构造函数

  Original:

  Trivial move constructor

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• 简单拷贝赋值运算符

  Original:

  Trivial copy assignment operator

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• 琐碎的举动赋值运算符

  Original:

  Trivial move assignment operator

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• 平凡的析构函数

  Original:

  Trivial destructor

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• No virtual functions or virtual base classes
• All (non-static) members and base classes are TriviallyCopyable

注释

1. Other than the other requirements, trivial constructor, assignment and destructor must be defined implicitly (not user-provided)
2. Scalar types and arrays of TriviallyCopiable objects are TriviallyCopiable as well

另请参阅

is_trivially_copyable （C++11）	checks if a type is trivially copyable （类模板）