[Bug c/31633] New: Calling an uninitialized function pointer does not trigger a warning

[carottegcc at therodox dot com]

See:

% cat gcc-bug.c
int foo(void) {
  int (*bar)(int);
  return bar(33);
}

% gcc -c -Wall gcc-bug.c
^^^^^^^^^ NO WARNING

% gcc -v
Using built-in specs.
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.1.1-r3/work/gcc-4.1.1/configure --prefix=/usr
--b
indir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.1.1
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/in
clude --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.1
--mandir=/usr/share/gcc-data/x86_64-p
c-linux-gnu/4.1.1/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.1/info --with-gxx-inclu
de-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/include/g++-v4
--host=x86_64-pc-linux-gnu --build=x86
_64-pc-linux-gnu --disable-altivec --enable-nls --without-included-gettext
--with-system-zlib --dis
able-checking --disable-werror --enable-secureplt
--disable-libunwind-exceptions --enable-multilib 
--disable-libmudflap --disable-libssp --disable-libgcj --enable-languages=c,c++
--enable-shared --e
nable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 4.1.1 (Gentoo 4.1.1-r3)


-- 
           Summary: Calling an uninitialized function pointer does not
                    trigger a warning
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: carottegcc at therodox dot com
GCC target triplet: x86_64-pc-linux-gnu, arm-lpc-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31633