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* [Bug fortran/29671] New: preprocessor statements must start in column 1
@ 2006-10-31 11:42 franke dot daniel at gmail dot com
2006-10-31 12:48 ` [Bug fortran/29671] " burnus at gcc dot gnu dot org
2006-10-31 13:02 ` burnus at gcc dot gnu dot org
0 siblings, 2 replies; 3+ messages in thread
From: franke dot daniel at gmail dot com @ 2006-10-31 11:42 UTC (permalink / raw)
To: gcc-bugs
Preprocessor statements (as if|else|endif|error|warning) must start in colum 1,
otherwise gfortran tries to handle them itself?!
$> cat pp.F90
PROGRAM test_preprocessor
#error "EEE" ! whitespace is significant
END PROGRAM
$> gfortran-4.3 -g -Wall pp.F90
In file pp.F90:3
#error "EEE"
1
Error: Unclassifiable statement at (1)
$> cat pp.F90
PROGRAM test_preprocessor
#error "EEE"
END PROGRAM
$> gfortran-4.3 -g -Wall pp.F90
pp.F90:3: error: #error "EEE"
Filed this as fortran report since gcc bails out as expected and both run
(afaik) the same preprocessor:
$> cat pp.c
int main() {
#error "EEE" /* whitespaces are not significant */
return 0;
}
$> gcc-svn -g -Wall pp.c
pp.c:2:4: error: #error "EEE"
$> gfortran -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../../svn/gcc/configure
--prefix=/home/daniel/nfs/packages/i686-pc-linux-gnu/gcc-svn --disable-nls
--enable-threads=posix --enable-shared --enable-bootstrap --with-system-zlib
--program-suffix=-svn --enable-languages=c,c++,fortran
Thread model: posix
gcc version 4.3.0 20061030 (experimental)
--
Summary: preprocessor statements must start in column 1
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: franke dot daniel at gmail dot com
GCC host triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29671
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug fortran/29671] preprocessor statements must start in column 1
2006-10-31 11:42 [Bug fortran/29671] New: " franke dot daniel at gmail dot com
@ 2006-10-31 12:48 ` burnus at gcc dot gnu dot org
2006-10-31 13:02 ` burnus at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: burnus at gcc dot gnu dot org @ 2006-10-31 12:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from burnus at gcc dot gnu dot org 2006-10-31 12:48 -------
The problem is that gfortran calls "cpp" with the -traditional-cpp option.
This causes some more modern constructs not to work and it also is the reason
behind your problem. (cf. PR 28662).
We need to use -traditional-cpp since "some tokens in C are not
tokens in Fortran so you could get the wrong result." (A.P. in the other PR)
The solution is to modify cpp to know fortran tokens (when called with
-lang-fortran).
Note this problem is not limited to gfortran; e.g. the NAG f95 compiler uses
Sun's public-domain fpp (netlib.org/fortran/), which has similar problems.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29671
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug fortran/29671] preprocessor statements must start in column 1
2006-10-31 11:42 [Bug fortran/29671] New: " franke dot daniel at gmail dot com
2006-10-31 12:48 ` [Bug fortran/29671] " burnus at gcc dot gnu dot org
@ 2006-10-31 13:02 ` burnus at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: burnus at gcc dot gnu dot org @ 2006-10-31 13:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from burnus at gcc dot gnu dot org 2006-10-31 13:02 -------
Confirm and mark as enhancement.
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-10-31 13:02:35
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29671
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-03-03 14:38 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2012-03-03 14:38 ` [Bug fortran/29671] preprocessor statements must start in column 1 fxcoudert at gcc dot gnu.org
2006-10-31 11:42 [Bug fortran/29671] New: " franke dot daniel at gmail dot com
2006-10-31 12:48 ` [Bug fortran/29671] " burnus at gcc dot gnu dot org
2006-10-31 13:02 ` burnus at gcc dot gnu dot org
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