$ gfortran -g -fdefault-integer-8 char_result_5.f90 $ gdb ./a.out GNU gdb 6.7.1-debian Copyright (C) 2007 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu"... Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1". (gdb) r Starting program: /tmp/a.out
Program received signal SIGSEGV, Segmentation fault. 0xb7f82664 in *_gfortran_string_scan (slen=9, str=0x804b480 "123456789", setlen=1, set=0x0, back=-1080910905) at ../../../../gcc/trunk/libgfortran/intrinsics/string_intrinsics.c:300 300 if (str[i] == set[j]) -- Summary: char_result_5.f90 / char_result_6.f90 fail with - fdefault-integer-8 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Keywords: wrong-code Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: tkoenig at gcc dot gnu dot org BugsThisDependsOn: 32770 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35937