std::bad_function_call - Man Page

Exception class thrown when class template function's operator() is called with an empty target.

Synopsis

#include <functional>

Inherits std::exception.

const char * what () const noexcept

Exception class thrown when class template function's operator() is called with an empty target.

Definition at line 54 of file functional.

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

Reimplemented from std::exception.

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Thu Jan 19 2023 libstdc++