is_nothrow_swappable< T > Struct Template Reference

C++14 compliant implementation of std::is_swappable from <type_traits> of C++17. More...

Detailed Description

template<class T>
struct Chusov::is_nothrow_swappable< T >

C++14 compliant implementation of std::is_swappable from <type_traits> of C++17.

Template Parameters

T	a type to check whether it supports noexcept calls to swap (in the using std::swap; context). If T is not a C++ object (i.e. if std::is_object returns false for T), is_nothrow_swappable also returns false via its value field. Otherwise, the result is one of is_nothrow_swappable_with<T&, T&>.

Checks whether objects of the type T are swappable without throwing any exceptions, i.e. if either a custom (non-std) swap for the type is provided, found via ADL and is declared as noexcept, or whether std::swap would be invoked for the call

using std::swap;
swap(v, u);

where v and u are objects of the type T with its move-constructor and move-assignment operator defined as noexcept.

If compiled for C++17 or newer, the metafunction uses std::is_nothrow_swappable.

See std::is_nothrow_swappable for details.

See also

is_nothrow_swappable_v

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The documentation for this struct was generated from the following file:

• chsvmetafun.h