[Bug 58372] New: EZNEC pro2+ 7.0 runs, but calculations have errornous exponential values

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58372

Bug ID: 58372
           Summary: EZNEC pro2+ 7.0 runs, but calculations have errornous
                    exponential values
           Product: Wine
           Version: 10.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 78782
  --> http://bugs.winehq.org/attachment.cgi?id=78782
In the value list, one can see, that the calculated value of the wavelength is
wrong by a factor of 10^12 (should be 29.5653)

Application can be downloaded from:
https://eznec.com/v7download/pro2+download.php

The application runs without error messages, but the results of the calculation
have wrong exponent values - see example in the attachment. The mantissa values
are correct.

The program runs well and calculates correct in native windows or in a vm
guest.

[Bug 58372] EZNEC pro2+ 7.0 runs, but calculations have errornous exponential values

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58372

Bernhard Übelacker  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #1 from Bernhard Übelacker  ---
Created attachment 78788
  --> http://bugs.winehq.org/attachment.cgi?id=78788
Testcase and logging at the implementation.

I tried to have a look and I could track it down to function
oleaut32.VarFormat, which is called with a format "0.#####E-#"
and a VT_R4|VT_BYREF variant.

The test produces in Windows the expected "2.95653E1".
(It is not completely clear if the application also shows exponential
format in native Windows.)

But in Wine currently the wrong "2.95653E13" is received.

https://testbot.winehq.org/JobDetails.pl?Key=158747

This is the place where additional "3" gets added.

https://gitlab.winehq.org/wine/wine/-/blob/885446556ce443b496e368b8f2c68807d...

For some reason the error did not show up in first tests when starting
with a value of 29.5653. The error just started to show up when using
some more fractional digits: 29.565331.

[Bug 58372] EZNEC pro2+ 7.0 runs, but calculations have errornous exponential values

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58372

Bernhard Übelacker  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |testcase
          Component|-unknown                    |oleaut32

[Bug 58372] EZNEC pro2+ 7.0 runs, but calculations have errornous exponential values

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58372

Ken Sharp  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |download
                URL|                            |https://eznec.com/v7downloa
                   |                            |d/pro2+download.php

[Bug 58372] EZNEC pro2+ 7.0 runs, but calculations have errornous exponential values

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58372

--- Comment #2 from Bernhard Übelacker  ---
Currently in "0.#####E-#" the '#' is counted into the fractional digits.
Therefore it appends again the fifth fractional digit '3'.

Submitted merge request which avoids this:
https://gitlab.winehq.org/wine/wine/-/merge_requests/8339

With it the application shows now just "29,5653 m"
without any exponential notation.
If you build wine yourself, maybe you can give this patch a try.

[Bug 58372] EZNEC pro2+ 7.0 runs, but calculations have errornous exponential values

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58372

Bernhard Übelacker  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED
      Fixed by SHA1|                            |6080ca7861968ced00ef0503d6d
                   |                            |69e2e2e13222a

--- Comment #3 from Bernhard Übelacker  ---
Merge request got committed, resolving fixed, should appear in next wine
release.
https://gitlab.winehq.org/wine/wine/-/commit/6080ca7861968ced00ef0503d6d69e2...

[Bug 58372] EZNEC pro2+ 7.0 runs, but calculations have errornous exponential values

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58372

Alexandre Julliard  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #4 from Alexandre Julliard  ---
Closing bugs fixed in 10.11.