Return the name of the n-th argument to the calling function.
If the argument is not a simple variable name, return an empty string. As
an example, a reference to a field in a structure such as s.field
is
not a simple name and will return ""
.
inputname
is only useful within a function. When used at the command
line it always returns an empty string.
See also: nargin, nthargout.
Package: octave