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I.1 Keywords

The following identifiers are keywords, and may not be used as variable or function names:

__FILE__ __LINE__ break
case catch classdef
continue do else
elseif end end_try_catch
end_unwind_protect endclassdef endenumeration
endevents endfor endfunction
endif endmethods endparfor
endproperties endswitch endwhile
enumeration events for
function get global
if methods otherwise
parfor persistent properties
return set static
switch try until
unwind_protect unwind_protect_cleanup while

The function iskeyword can be used to quickly check whether an identifier is reserved by Octave.

— Built-in Function: iskeyword ()
— Built-in Function: iskeyword (name)

Return true if name is an Octave keyword. If name is omitted, return a list of keywords.

See also: isvarname, exist.