std::bad_optional_access - Man Page

Exception class thrown when a disengaged optional object is dereferenced.

Synopsis

#include <optional>

Inherits std::exception.

const char * what () const noexcept override

Exception class thrown when a disengaged optional object is dereferenced.

Returns a C-style character string describing the general cause of the current error.

Reimplemented from std::exception.

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