C++ concepts: TriviallyCopyable

Requirements

• Every copy constructor is Trivial or deleted (since C++14)
• Every move constructor is Trivial or deleted (since C++14)
• Every copy assignment operator is Trivial or deleted (since C++14)
• Every move assignment operator is Trivial or deleted (since C++14)

at least one copy constructor, move constructor, copy assignment operator, or move assignment operator is non-deleted

(since C++14)

• Trivial non-deleted (since C++14) destructor

This implies that the class has no virtual functions or virtual base classes.

Scalar types and arrays of TriviallyCopyable objects are TriviallyCopyable as well, as well as the const-qualified (but not volatile-qualified) versions of such types.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
CWG 1734	C++14	C++03 POD with deleted non-trivial assignment was not trivial	deleted ctors/operators allowed

See also

is_trivially_copyable (C++11)

checks if a type is trivially copyable (class template)