[gfortran] Second try: Problem parsing hexadecimal constants?

["Ioannis E. Venetis" <iev at hpclab dot ceid dot upatras dot gr>]

I sent this message about a week ago, but didn't get any response. So, I 
try again. My question is whether this is a bug of gfortran and if I 
should open a bug report about it. I haven't found this in Bugzilla.

Thank you!

------------------------------------------------------------------------

Dear all,

Firstly, let me say that I don't know that much about Fortran, but I use 
a source-code transformation tool that creates Fortran 77 code, which I 
feed to gfortran.

During this last stage, gfortran seems to have some problems to parse 
hexadecimal constants. I managed to reduce the problem to this very 
simple code:

TEST.f:

PROGRAM HEX_TEST

INTEGER(4) MASK

MASK = 'c0'X

END

~ $ gfortran -c TEST.f
 In file TEST.f:5


      MASK = 'c0'X
     1
Error: Unclassifiable statement at (1)



If, however, I make the following change:

MASK = X'c0'

the program compiles correctly. I remember that I used this tool with 
g77 too and that I had no problem. Either form of a hexadecimal constant 
was accepted. The same holds for the Intel compiler.

Is this a bug of gfortran or some kind of extension that is not supported?

~ $ gfortran -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.0.2/configure 
--prefix=/home/iev/apps/gcc-4.0.2 --enable-languages=c,c++,f95 
--enable-shared --enable-threads=posix --disable-checking 
--with-system-zlib --enable-__cxa_atexit --disable-libgcj --disable-nls
Thread model: posix
gcc version 4.0.2

Best regards,

Ioannis