[Bug fortran/33001] error with hexadecimal DATA
--- Comment #8 from burnus at gcc dot gnu dot org 2007-08-09 21:28 --- Subject: Bug 33001 Author: burnus Date: Thu Aug 9 21:27:52 2007 New Revision: 127321 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=127321 Log: 2007-08-09 Tobias Burnus [EMAIL PROTECTED] PR fortran/33001 * arith.c (arith_error): Point in the error message to -fno-range-check. Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/arith.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001
[Bug fortran/33001] error with hexadecimal DATA
--- Comment #1 from sliwa at cft dot edu dot pl 2007-08-06 11:03 --- Created an attachment (id=14028) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14028action=view) sample source that does not compile This is a SLATEC machine file -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001
[Bug fortran/33001] error with hexadecimal DATA
--- Comment #2 from burnus at gcc dot gnu dot org 2007-08-06 12:11 --- DATA LARGE(1), LARGE(2) / Z'', Z'7FEF' / Error: Arithmetic overflow converting INTEGER(16) to INTEGER(4) at (1) The error message is correct: You cannot fit the number into an INTEGER(4) as this is bigger than HUGE(0). As the overflow is intended, one can use -fno-range-check to disable this checking and thus the error message. I think one should do here the same as in primary.c and add the following to the error message: --- arith.c (revision 127237) +++ arith.c (working copy) @@ -1983,3 +1983,4 @@ arith_error (arith rc, gfc_typespec *fro case ARITH_OVERFLOW: - gfc_error (Arithmetic overflow converting %s to %s at %L, + gfc_error (Arithmetic overflow converting %s to %s at %L. This check +can be disabled with the option -fno-range-check, gfc_typename (from), gfc_typename (to), where); -- burnus at gcc dot gnu dot org changed: What|Removed |Added CC||burnus at gcc dot gnu dot ||org GCC build triplet|x86_64-redhat-linux | GCC host triplet|x86_64-redhat-linux | GCC target triplet|x86_64-redhat-linux | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001
[Bug fortran/33001] error with hexadecimal DATA
--- Comment #4 from sliwa at cft dot edu dot pl 2007-08-06 12:45 --- With -fno-range-check I get: d1mach.f: In function 'd1mach': d1mach.f:2: fatal error: gfc_todo: Not Implemented: Initialization of overlapping variables compilation terminated. See also bug #33002. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001
[Bug fortran/33001] error with hexadecimal DATA
--- Comment #3 from sliwa at cft dot edu dot pl 2007-08-06 12:41 --- 1. The attached d1mach.f works fine with g77. 2. The numbers are 32-bit, so why an overflow? Maybe the number is extended as a signed number (padded with ones), and the conversion is unsigned. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001
[Bug fortran/33001] error with hexadecimal DATA
--- Comment #5 from burnus at gcc dot gnu dot org 2007-08-06 13:06 --- The numbers are 32-bit, so why an overflow? huge(0): 2147483647 ! biggest (positive) number fitting into integer(4) Z'': 4294967295 I would argue that 4294967295 is bigger than 2147483647. If one allows the overflow or regards it as bit pattern, one obtains -1. This is also what one gets for -fno-range-check. The program is simply invalid though as vendor extension many compilers allow it. One can discuss about the default behaviour in gfortran [write to the mailing list and not here], but the current behaviour has some merits, though I think one should point to the option which allows the compilation (see patch in comment #2). - (In reply to comment #4) d1mach.f:2: fatal error: gfc_todo: Not Implemented: Initialization of overlapping variables This was fixed meanwhile. gfortran 4.3 does not have this error any more. 4.3 binaries are available at: http://gcc.gnu.org/wiki/GFortranBinaries -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001
[Bug fortran/33001] error with hexadecimal DATA
--- Comment #6 from kargl at gcc dot gnu dot org 2007-08-06 17:30 --- *** This bug has been marked as a duplicate of 18026 *** -- kargl at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001
[Bug fortran/33001] error with hexadecimal DATA
--- Comment #7 from patchapp at dberlin dot org 2007-08-06 18:20 --- Subject: Bug number PR33001 A patch for this bug has been added to the patch tracker. The mailing list url for the patch is http://gcc.gnu.org/ml/gcc-patches/2007-08/msg00374.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33001