/usr/share/freemat/toolbox/array/isstr.m is in freemat-data 4.0-5build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | % ISSTR ISSTR Test For Character Array (string)
%
% Usage
%
% The syntax for isstr is
%
% x = isstr(y)
%
% and it returns a logical 1 if the argument is a string
% and a logical 0 otherwise.
% Copyright (c) 2002-2006 Samit Basu
% Licensed under the GPL
function x = isstr(y)
x = isa(y,'char');
|