[Bug c++/39966] New: undefined reference not signaled

[asmprog32 at hotmail dot com]

struct bug
{
        int & A;
};

int main()
{
        int C = 10;
        bug B[5];               // <---- uninitialized reference
        B[0].A = C;             // <---- crash
}


compiled with 
gcc -o bug bug.cpp
withouth errors (the uninitialized reference is not signaled)

class bug
{
        int & A;
};

int main()
{
        int C = 10;
        bug B[5];               // <---- uninitialized reference
        B[0].A = C;             // <---- crash
}

compiled with 
gcc -o bug bug.cpp
withouth errors (the uninitialized reference is not signaled)

class bug
{
        public:
        int & A;

        bug()   {};
        ~bug()  {};

};

int main()
{
        int C = 10;
        bug B[5];               // <---- uninitialized reference
        B[0].A = C;             // <---- crash
}


compiled with 
gcc -o bug bug.cpp
bug.cpp: In constructor ‘bug::bug()’:
bug.cpp:8: error: uninitialized reference member ‘bug::A’

The uninitialized reference must be signaled in the first two cases ? I am not
sure, so i report it
( g++ same behaviour )


Here gcc -v

Using built-in specs.
Target: i386-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk
--disable-dssi --enable-plugin
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-cpu=generic --build=i386-redhat-linux
Thread model: posix
gcc version 4.3.2 20081105 (Red Hat 4.3.2-7) (GCC)


-- 
           Summary: undefined reference not signaled
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: asmprog32 at hotmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39966