I think I found a bug... but not sure.

[richh]

So lately, I have been working with opening up files as binary then searching for specific information by hex. I came across something unusual and wanted to get addition opinions.

If I run this code in Windows, this statement is true. If I run the same code on a Mac, the statement is false.

Code: Select all

   if "00020000" = "20000d00" then
      answer "Equal"
   else
      answer "Not Equal"
   end if

According to logic, the statement should be false...

thoughts?

[dunbarx]

I am on a Mac, and I get "not equal". No surprise, the strings are different.

How could windows see these as the same? Is it just that Macs are superior machines?

Craig Newman

[bangkok]

Holly cow !

I get "equal" on windows !



That's a good one.

[richh]

Should I email Runrev to report the problem or is there a specific place I should go to report it?

[dunbarx]

Just tell Microsoft that their OS is awful, always was awful, and always will be.

Craig newman

[wsamples]

I think there are two problems here. One is with Livecode and how it evaluates strings it determines are numeric values. I'm running openSUSE and the above evaluates to "not equal", however changing the test to "00020000" = "20000"' evaluates to "true" which is correct only if we are considering numeric values. The strings are clearly not identical, which is what the question is since they are quoted strings. This also occurs in OS X. The remaining question is why is the string being treated as a numeric in Windows. This is definitely something to pass along to the devs.

[richh]

Craig:

Though my personal preference is mac, my employer sees things differently Oh well, slowly but surely Microsoft is losing their market share


wsamples:

I agree; however, there is a 3rd element to the mix in which the string on the right contains the d character. I am curious if this character is being mistaken for 0 which would then follow suite to your conclusion.

if "00020000" = "20000d00" then

I will send an email to the dev team. Thank you everyone for their input.

[wsamples]

I was about to edit my post to clarify that I meant was talking about the string containing the "d" being treated as a numeric in Windows... Yes, it is really very odd and not possible to guess if that happens somehow in the Livecode engine or in Windows.

[wsamples]

Some day I will learn to be thorough and efficient, but apparently I have a way to go...

The string containing the "d" is being truncated at the "d", which allows the statement to evaluate as true, based on the numeric value the string contains. This is NOT a good thing!

[richh]

no worries it happens to me as well

I agree, this issue is not a good thing. I just sent an email to runrev's support team.