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C++ API

: val = missing_function_hook ()

: old_val = missing_function_hook (new_val)

: missing_function_hook (new_val, "local")

Query or set the internal variable that specifies the function to call when an unknown identifier is requested.

When called from inside a function with the "local" option, the variable is changed locally for the function and any subroutines it calls. The original variable value is restored when exiting the function.

See also: missing_component_hook.

Package: octave