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Beginner

Compiler Bug in Complex Read

I have found a bug in the intel ifort compiler 2019.3.199. I try to read real data into a complex variable using the following code: read(2) CFL%re

read(2) W%re

 

When doing so I get the following error: "Constants and expressions are invalid in read-only" Given that ifort claims it is fortran 2008 compliant, and that this capability is part of the 2008 standard, I believe I have found a bug.

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Black Belt

I agree that this would be a

I agree that this would be a bug; %re and %im are treated as components of the complex type. Do you understand that these statements change only the real part and don't touch the imaginary part?

Please use the orange "Bug Report" button at the top of the forum to report this to Intel.

Steve (aka "Doctor Fortran") - https://stevelionel.com/drfortran
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Beginner

Hi Steve,

Hi Steve,

Thanks for the response. Indeed I do. I have restart files and write only the real part of the arrays to them. As such when I read, I want to only read the real part. Hence the attempt (in the complex mode of the code) to read with:

read(2) W%re

I'll submit a bug report in the hopes of getting this fixed. As otherwise I need to do some ugly copying with my arrays which is undesirable.

 

Thanks,

Emmett

 

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