parameter must specify a logical value. What is a logical value?

Hi, I've got the following problem with Simulink Design Verifier. I'm trying to extract a subsystem with the sldvextract function. Doing that, I get the following error message:

Error using sldvextract (line 57)
Invalid usage of sldvextract. The showModel parameter must specify a logical value.

Error in SLDV_TestGeneration (line 30)
newModel = sldvextract('Test_Harness_Verification_small/WMS Water Management', false);

I also tried true, I also tried 0, I also tried 'false', nothing worked. Perhaps I just don't see the failure. Can you help me?

Answer 1

[Wayne King]

a logical value would be

    x = logical(0);
    x = logical(1);

or

     x = false;
     x = true;

You do not want to put 'false', that is just a string.

[Max]

I recognize that. But look at the parameters I give to sldvextract. It's exactly

false

[Walter Roberson]

Out of curiosity, try specifying logical(0) -- I'm just thinking that maybe "false" has been given a different value in your context.

Answer 2

[Walter Roberson]

true and false should be valid according to the documentation

http://www.mathworks.com/help/toolbox/sldv/ref/sldvextract.html

Answer 3

[Max]

logical(0) works...

Is that an incident I should report?

[Walter Roberson]

If logic(0) works that suggest that "true" and "false" have been assigned something at that point. Can you display class(true) and size(true) ? And search the section to see if they were somehow defined in an obvious way?