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Bug#592649: marked as done (gcc-4.4: seemingly incorrect behaviour with switch on out-of-range enum value)

Your message dated Sun, 05 Jul 2015 16:18:22 +0000
with message-id <E1ZBmcY-0006gk-9d@franck.debian.org>
and subject line Bug#707276: Removed package(s) from unstable
has caused the Debian Bug report #592649,
regarding gcc-4.4: seemingly incorrect behaviour with switch on out-of-range enum value
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
592649: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=592649
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc-4.4
Version: 4.4.4-8
Severity: important


Running the following code with gcc-4.4 will print "A" even though the
value of bar in is actually 64 at runtime.

The correct behaviour is surely to print "invalid bar"?

As you can see from the code, adding a default case changes the
behaviour which I find even more strange.

Looking at the asm it seems that gcc is making as assumsion that
bar must be in the valid range of the enum.

This problem does not exist in gcc-4.3

#include <stdio.h>

enum foo
{
    A = 0,
    B = 1
};

int main()
{
    foo bar = (foo)64;

    switch (bar)
    {
        case A: printf("A\n"); return 0;
        case B: printf("B\n"); return 0;
        // uncomment this line to stop A being printed!
        //default: break;
    }

    printf("invalid bar\n");
    return 1;
}



-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.33-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gcc-4.4 depends on:
ii  binutils                      2.20.1-13  The GNU assembler, linker and bina
ii  cpp-4.4                       4.4.4-8    The GNU C preprocessor
ii  gcc-4.4-base                  4.4.4-8    The GNU Compiler Collection (base 
ii  libc6                         2.11.2-2   Embedded GNU C Library: Shared lib
ii  libgcc1                       1:4.4.4-8  GCC support library
ii  libgomp1                      4.4.4-8    GCC OpenMP (GOMP) support library

Versions of packages gcc-4.4 recommends:
ii  libc6-dev                     2.11.2-2   Embedded GNU C Library: Developmen

Versions of packages gcc-4.4 suggests:
ii  gcc-4.4-doc                  4.4.4.nf1-1 documentation for the GNU compiler
pn  gcc-4.4-locales              <none>      (no description available)
ii  gcc-4.4-multilib             4.4.4-8     The GNU C compiler (multilib files
pn  libcloog-ppl0                <none>      (no description available)
pn  libgcc1-dbg                  <none>      (no description available)
pn  libgomp1-dbg                 <none>      (no description available)
pn  libmudflap0-4.4-dev          <none>      (no description available)
pn  libmudflap0-dbg              <none>      (no description available)
pn  libppl-c2                    <none>      (no description available)
pn  libppl7                      <none>      (no description available)

-- no debconf information

--- End Message ---
--- Begin Message --- 
Version: 1:4.4.7-8+rm

Dear submitter,

as the package gcc-4.4 has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/707276

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Luca Falavigna (the ftpmaster behind the curtain)

--- End Message ---
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