Package: gfortran-4.6 Version: 4.6.2-12 Severity: normal Dear Maintainer,
Formatted read statement cannot parse the minimum integer by a program compiled by gfortran-4.6. I compiled the following test program with no options, ---------------------------------------- program test_int_min implicit none integer :: i integer :: ios read (*, *, IOSTAT=ios) i if (ios.ne.0) then write (*, *) 'ERROR', ios endif write (*, *) i, -i, -i-1, -i-2 stop end program test_int_min ---------------------------------------- and executes as follows. ---------------------------------------- % gfortran test_int_min.f % echo 2147483647 | ./a.out 2147483647 -2147483647 -2147483648 2147483647 % echo -2147483647 | ./a.out -2147483647 2147483647 2147483646 2147483645 % echo -2147483648 | ./a.out ERROR 5010 0 0 -1 -2 ---------------------------------------- You see we can compute, store, write the actual minimum integer -2147483648 in the program, but fail to read it. Similar error occurs also when using a namelist. I suspect that gfortran converts a string of a number to the absolute value before sign treatment, which causes overflow of integer. Best regards, -- System Information: Debian Release: wheezy/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: i386 (i686) Kernel: Linux 3.2.0-1-686-pae (SMP w/4 CPU cores) Locale: LANG=ja_JP.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages gfortran-4.6 depends on: ii gcc-4.6 4.6.2-12 ii gcc-4.6-base 4.6.2-12 ii libc6 2.13-25 ii libc6-dev 2.13-25 ii libgfortran3 4.6.2-12 ii libgmp10 2:5.0.3+dfsg-1 ii libmpc2 0.9-4 ii libmpfr4 3.1.0-3 ii zlib1g 1:1.2.3.4.dfsg-3 gfortran-4.6 recommends no packages. Versions of packages gfortran-4.6 suggests: ii gfortran-4.6-doc <none> ii gfortran-4.6-multilib 4.6.2-12 ii libgfortran3-dbg 4.6.2-12 -- no debconf information -- To UNSUBSCRIBE, email to debian-gcc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/i8upqdylpjp.wl%fuy...@poem.ocn.ne.jp