Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit 36319504d5.


template <class T>
struct is_nothrow_swappable : public true_type-or-false_type {};

Inherits: If the expression swap(declval<T&>(), declval<T&>()) (in a context where std::swap is visible) is valid and non-throwing, inherits from true_type, otherwise from false_type.

Compiler Compatibility: This trait requires C++11 for full support. Without C++11 it will inherit from true_type for scalar types (including integral, floating point, enumeration, pointer and pointer-to-member types), and from false_type for anything else.

Header: #include <boost/type_traits/is_nothrow_swappable.hpp> or #include <boost/type_traits.hpp>