An instance of std::exception_ptr stores a captured
exception for later rethrow either on the same or another thread. Instances
of std::exception_ptr may be used directly
to transfer an exception between threads, or may be used alongside std::promise,
std::future
and std::shared_future.
Instances of std::exception_ptr are CopyAssignable and CopyConstructible.
class exception_ptr { public: exception_ptr(); ~exception_ptr(); exception_ptr(exception_ptr const& ); exception_ptr& operator=(exception_ptr const& ); explicit operator bool() const; void swap(exception_ptr&); bool operator==(exception_ptr const& ) const; bool operator!=(exception_ptr const& ) const; };
Header
#include <exception_ptr>