https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121185

--- Comment #11 from kargls at comcast dot net ---
(In reply to kargls from comment #10)
> (In reply to Jürgen Reuter from comment #8)
> > Created attachment 61945 [details]
> > Reproducer, single file, first part (polarization test)
> 
> This is what I get
> 
> % ./whizard_test 
> Running test: polarization_2Test: polarization_2
>  ... success.
>   Success.
> *** Test Summary ***
>   Success:
> Total   = 1
> Success = 1
> Failure = 0
> *** End of test Summary ***
> 
> with
> 
> GNU Fortran (GCC) 16.0.0 20250712 (experimental)
> Copyright (C) 2025 Free Software Foundation, Inc.
> 
> There is no other output.

Rebuilding with an up-to-date gfortran, I see

 ./whizard_test --check polarizations
Running test: polarization_2 Trace of matrix square =    3.2500000000000000     
 Not permissible as density matrix
 Trace of matrix square =    3.3399999999999999     
 Not permissible as density matrix
 Trace of matrix square =    3.9705327314630523     
 Not permissible as density matrix
 ... failure.  See: err-output/polarization_2.out
*** Test Summary ***
  Failure:
Total   = 1
Success = 0
Failure = 1
*** End of test Summary ***
hotrats:kargl[369] gfcx --version
GNU Fortran (GCC) 16.0.0 20250723 (experimental)

 ./whizard_test --check polarizations
Running test: polarization_2 Trace of matrix square =    3.2500000000000000     
 Not permissible as density matrix
 Trace of matrix square =    3.3399999999999999     
 Not permissible as density matrix
 Trace of matrix square =    3.9705327314630523     
 Not permissible as density matrix
 ... failure.  See: err-output/polarization_2.out
*** Test Summary ***
  Failure:
Total   = 1
Success = 0
Failure = 1
*** End of test Summary ***

% gfcx --version
GNU Fortran (GCC) 16.0.0 20250723 (experimental)

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