std::nested_exception:: nested_ptr

From cppreference.net

std:: exception_ptr nested_ptr ( ) const noexcept ;		(since C++11) (constexpr since C++26)

Returns a pointer to the stored exception, if any.

A std::exception_ptr to the stored exception if one is stored, default-initialized std::exception_ptr otherwise.

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Member functions
nested_exception::nested_exception
nested_exception::~nested_exception
nested_exception::operator=
nested_exception::rethrow_nested
nested_exception::nested_ptr