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
