NAG failure of polarizations

[Juergen Reuter]

There is an issue with the polarization test with at least certain NAG compiler versions:

Runtime Error: state_matrices.f90, line 1010: Reference to dangling pointer IT%STATE
Target was RETURNed from procedure STATE_MATRICES:STATE_ITERATOR_INIT
Program terminated by fatal error
state_matrices.f90, line 1010: Error occurred in STATE_MATRICES:STATE_ITERATOR_GET_MATRIX_ELEMENT
polarizations.f90, line 553: Called by POLARIZATIONS:POLARIZATION_GET_AXIS
polarizations_uti.f90, line 183: Called by POLARIZATIONS_UTI:POLARIZATION_1
unit_tests.f90, line 184: Called by UNIT_TESTS:TEST
polarizations_ut.f90, line 50: Called by POLARIZATIONS_UT:POLARIZATIONS_TEST
main_ut.f90, line 509: Called by MAIN_UT:WHIZARD_CHECK
main_ut.f90, line 288: Called by MAIN_UT
Running test: polarization_1

[kilian]

... an illustration for the need of a less fragile internal representation. But I'll fix this first.

[kilian]

Fix committed as r7463.

[Juergen Reuter]

Unfortunately this only shifted the problems. Apparently, the NAG compiler is not in a very stable state at the moment.

[kilian]

This particular problem appears to be fixed. Closing, #775 still open.