Bug in G format conversion

The 64-bit runtime has a bug in output format conversion of numbers between 0.9 and 1.0 with Gn.1 format, e.g., G8.1.

program chk
implicit none
double precision x
x = 0.96d0
write(*,'(g8.1)')x
end program

The error pop-up that I first see when running the program is: https://www.dropbox.com/s/uip2iewyb0h9lkq/s1.png Only upon pressing the CONTINUE button do I see the traceback: https://www.dropbox.com/s/5z0csuea2qpa41m/s2.png There is no such problem with the 32-bit compiler.

NOTE: Someone, please provide instructions on attaching images in-line in this forum. I tried selecting the URL and pressing the Img button, but that did not work. Under forum Options I see 'HTML is OFF'. Is that the cause of the problem?

mecej4,

I ran your example with the latest update to ftn95 Ver 8.05.0. I do not need CONTINUE as I go straight to your second traceback report. I do reproduce the bug. I used : ftn95 tst /64 /debug /link I also do not know the instructions for attaching an image !

John

Thanks for the feedback. This bug has now been fixed.

Here is a link to download a new set of DLLs for testing. Please remember to save backup copies before replacing the DLLs.

https://www.dropbox.com/s/iuq2riwhfzahbl7/newDLLs1.zip?dl=0

Thanks. I ran the full program (from which the short bug reproducer was extracted) with the new DLLs, and it ran correctly.

The replacement DLLs mentioned in the post of Sat Jul 16, 2016 have the following problem: when a program containing the DEALLOCATE statement is compiled and linked in 64-bit mode, the following linker error occurs:

The following symbols were not defined:

DEALLOCATE@

Thanks for the feedback. I have added the missing function to clearwin64.dll and here is a new link for downloading. Please let me know if this fixes the problem.

https://www.dropbox.com/s/kty2x6bl8ipn080/newDLLs2.zip?dl=0

Thanks, Paul. Installing the new DLLs fixed the problem.