http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46656
Summary: libgfortran: Integer write: uninitialised value
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: fortran
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
If I compile the following program using GCC 4.1 to 4.6
implicit none
integer :: mylen = 5
print *, mylen
end
and run it under valgrind, I see:
Conditional jump or move depends on uninitialised value(s)
at 0x585A684: __GI_strlen (in /lib64/libc-2.11.2.so)
by 0x4F06122: write_integer (write.c:1285)
by 0x4F09B9E: _gfortrani_list_formatted_write (write.c:1553)
by 0x40087F: MAIN__ (test.f90:3)
by 0x4008C4: main (test.f90:4)
Conditional jump or move depends on uninitialised value(s)
at 0x4EFE146: _gfortrani_write_block (transfer.c:713)
by 0x4F06136: write_integer (write.c:1289)
by 0x4F09B9E: _gfortrani_list_formatted_write (write.c:1553)
by 0x40087F: MAIN__ (test.f90:3)
by 0x4008C4: main (test.f90:4)
The first report is from:
write_integer (st_parameter_dt *dtp, const char *source, int length)
...
q = gfc_itoa (extract_int (source, length), itoa_buf, sizeof (itoa_buf));
...
digits = strlen (q); // <<< here
