From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22239 invoked by alias); 18 Mar 2013 05:30:08 -0000 Received: (qmail 21983 invoked by uid 48); 18 Mar 2013 05:28:48 -0000 From: "zhabgyuan1993 at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/56647] New: use return value of malloc() as initializer Date: Mon, 18 Mar 2013 05:30:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: zhabgyuan1993 at gmail dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2013-03/txt/msg01289.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D56647 Bug #: 56647 Summary: use return value of malloc() as initializer Classification: Unclassified Product: gcc Version: 4.7.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned@gcc.gnu.org ReportedBy: zhabgyuan1993@gmail.com Created attachment 29687 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D29687 the preprocessed file for r.c $:cat r.c ------------------------------------------------------ #include #include int *c; c =3D (int *)malloc(sizeof(int)); int main(void) { return 0; } error or warning ------------------------------------------------------- r.c:4:1: warning: data definition has no type or storage class [enabled by default] r.c:4:1: error: conflicting types for =E2=80=98c=E2=80=99 r.c:3:6: note: previous declaration of =E2=80=98c=E2=80=99 was here r.c:4:5: warning: initialization makes integer from pointer without a cast [enabled by default] r.c:4:1: error: initializer element is not constant $: gcc -v -save-temps r.c ------------------------------------------------------- Using built-in specs. COLLECT_GCC=3Dgcc COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion=3D'Ubuntu/Linaro 4.7.2-2ubuntu1' --with-bugurl=3Dfile:///usr/share/doc/gcc-4.7/README.Bugs --enable-languages=3Dc,c++,go,fortran,objc,obj-c++ --prefix=3D/usr --program-suffix=3D-4.7 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=3D/usr/lib --without-included-gettext --enable-threads=3Dposix --with-gxx-include-dir=3D/usr/include/c++/4.7 --libdir=3D/usr/lib --enable-nls --with-sysroot=3D/ --enable-clocale=3Dgnu --enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes --enable-gnu-unique-= object --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=3Di686 --with-tune=3Dgeneric --enable-checking=3Drelease --build=3Dx86_64-linux-gnu --host=3Dx86_64-linux-gnu --target=3Dx86_64-linux-gnu Thread model: posix gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1)=20 COLLECT_GCC_OPTIONS=3D'-v' '-save-temps' '-mtune=3Dgeneric' '-march=3Dx86-6= 4' /usr/lib/gcc/x86_64-linux-gnu/4.7/cc1 -E -quiet -v -imultiarch x86_64-linux-gnu r.c -mtune=3Dgeneric -march=3Dx86-64 -fpch-preprocess -fstack-protector -o r.i ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu" ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../../x86_64-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/lib/gcc/x86_64-linux-gnu/4.7/include /usr/local/include /usr/lib/gcc/x86_64-linux-gnu/4.7/include-fixed /usr/include/x86_64-linux-gnu /usr/include End of search list. COLLECT_GCC_OPTIONS=3D'-v' '-save-temps' '-mtune=3Dgeneric' '-march=3Dx86-6= 4' /usr/lib/gcc/x86_64-linux-gnu/4.7/cc1 -fpreprocessed r.i -quiet -dumpbase = r.c -mtune=3Dgeneric -march=3Dx86-64 -auxbase r -version -fstack-protector -o r= .s GNU C (Ubuntu/Linaro 4.7.2-2ubuntu1) version 4.7.2 (x86_64-linux-gnu) compiled by GNU C version 4.7.2, GMP version 5.0.2, MPFR version 3.1.0-= p3, MPC version 0.9 GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 GNU C (Ubuntu/Linaro 4.7.2-2ubuntu1) version 4.7.2 (x86_64-linux-gnu) compiled by GNU C version 4.7.2, GMP version 5.0.2, MPFR version 3.1.0-= p3, MPC version 0.9 GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 Compiler executable checksum: efa32fef7aa241fa03ac6d7ad2a4a2cf r.c:4:1: warning: data definition has no type or storage class [enabled by default] r.c:4:1: error: conflicting types for =E2=80=98c=E2=80=99 r.c:3:6: note: previous declaration of =E2=80=98c=E2=80=99 was here r.c:4:5: warning: initialization makes integer from pointer without a cast [enabled by default] r.c:4:1: error: initializer element is not constant