ifort rejects nested array constructor despite typespec

[Harald1]

Intel 2021.5.0 rejects the following code - which is accepted by NAG:

program p
  integer, parameter :: a(*) = [1]
  print *, [ real :: + a  ] ! OK
  print *, [ real :: +[a] ] ! rejected
  print *, [ real :: +[1] ] ! rejected
end

 The compiler gives:

ifort-nested-ctor.f90(4): error #8209: If type specification is omitted, each element in an
array-constructor must have the same type and kind type parameters.
 print *, [ real :: +[a] ] ! rejected
---------------------^
ifort-nested-ctor.f90(5): error #8209: If type specification is omitted, each element in an
array-constructor must have the same type and kind type parameters.
 print *, [ real :: +[1] ] ! rejected
---------------------^
compilation aborted for ifort-nested-ctor.f90 (code 1)

Somehow the unary + sign in front of the constructor confuses the compiler.

Thanks,

Harald

[Barbara_P_Intel · Accepted solution]

Thank for reporting this with such a small reproducer. We appreciate that!

I filed a bug report, CMPLRIL0-34589. I'll let you know its progress to a fix.

[Barbara_P_Intel]

This issue with the erroneous error message is fixed in ifx 2023.0.0 and ifort 2021.8.0 that were released in December as part of the oneAPI HPC Toolkit. Please check it out!

[Harald1]

Yes, it is indeed fixed.  Thanks!