Hi, I've write a simple program in fortran as follow:
program file1
implicit none
! Prompt user for a filename and read it:
CHARACTER*64 filename
character*64 reading
WRITE (*, '(A)') ' enter file to create: '
READ (*, '(A)') filename
! Open the file for formatted sequential access as unit 7.
! Note that the specified access need not have been specified,
! since it is the default (as is "formatted").
OPEN (7, FILE = filename, ACCESS = 'SEQUENTIAL', STATUS = 'NEW')
write(7,*)'Nuovo file'
open(10,file='pippo', access='sequential', status='old')
read(10,*)reading
close(7)
close(10)
write(*,*) reading
print *, 'Hello World'
end program file1
When I run it under Code::Blocks (ver. 17.12, the latest) ide o in command prompt I get an error message as in the image attached. Code::Blocks is installed in a OS windows 10 (

) 64bit.
If I compile and run the same code with "my old computer" (a virtual machine over the same computer), with xp and visual studio intel fortran , all is good!
Can someone help me and show were I fall?
Thanks
Please state the GCC and/or FORTRAN compiler version for both working and non-working versions.
Some GCC Compilers have know FORTRAN bugs!
Tim S.
Non working fortran compiler ver is the mingw32-gfortran.exe "GNU Fortran (tdm-1) 5.1.0".
The other, my old fortran compiler, working ver is the "Intel(R) Fortran Compiler 10.1.021 [IA-32]".
It's a compiler's bug?? Can I fix in someway?
Please state the GCC and/or FORTRAN compiler version for both working and non-working versions.
Some GCC Compilers have know FORTRAN bugs!
Tim S.
Non working fortran compiler ver is the mingw32-gfortran.exe "GNU Fortran (tdm-1) 5.1.0".
The other, my old fortran compiler, working ver is the "Intel(R) Fortran Compiler 10.1.021 [IA-32]".
It's a compiler's bug?? Can I fix in someway?
IIRC, "GNU Fortran (tdm-1) 5.1.0" is the bad FORTRAN compiler.
I would try an older or newer GCC FORTRAN compiler.
Tim S.
You are doing file operations in Fortran and there is a bug in version 5.1.0 of file "libgfortran-3.dll" causing the error you describe. You need to update file "libgfortran-3.dll" as described in
this post
.
Before I ask for help I've do it (installed the libgfortran-3 described in the
post
) ... but nothing
I used mingw from here
https://sourceforge.net/projects/mingw/files/MinGW/Base/gcc/Version6/
With this replaced compiler, it works now.
(1) download small installer from the above link and install it in c:\mingw
(2) select the fortran package from the fresh installer and install
(3) change in the setting-complier for GNU fortran path to c:\mingw
The logic is clear, and I am sorry, if it the explanation is too short, I am writing this to repeat the procedure on another computer too.