I want to disable warning if user give result containing function. The problem is that the warning didn't have any ID (no msgid).

try
    result = @sin;
    output_file = 'foo.mat';
    save('-v6', '-mat-binary', output_file, 'result', 'err');
catch ME
    [msg, msgid] = lastwarn();
    disp(msg)  % disp("save: wrong type argument 'function handle'")
    disp(msgid)  % disp('')
end

Furthermore, it's kind of duplicate of warning and error. See this:

result = @sin;
output_file = 'foo.mat';
save('-v6', '-mat-binary', output_file, 'result', 'err');

Will print:

warning: save: wrong type argument 'function handle'
warning: called from
    ... at line 3 column 1

error: save: error while writing 'result' to MAT file
error: called from
    ... at line 3 column 1

Expected behavior is to only throw error, with 'function handle' info. But, if both warning and error is the desired behavior, please add msgid so I can disabled that specific warning.