std::nested_exception:: operator=

From cppreference.com

nested_exception & operator = ( const nested_exception & other ) noexcept = default ;		(since C++11) (constexpr since C++26)

Replaces the stored exception with the one held in other .

other

nested exception to replace the contents with

* this

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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