From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12363 invoked by alias); 2 Sep 2004 20:29:18 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 12333 invoked by uid 48); 2 Sep 2004 20:29:16 -0000 Date: Thu, 02 Sep 2004 20:29:00 -0000 From: "sestegra at free dot fr" To: gcc-bugs@gcc.gnu.org Message-ID: <20040902202906.17299.sestegra@free.fr> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug preprocessor/17299] New: Strange "not give a valid preprocessing token" error with macro substitution X-Bugzilla-Reason: CC X-SW-Source: 2004-09/txt/msg00247.txt.bz2 List-Id: GCC 3.3.2 raises a strange preproccessing error with following C file (dummy.c) and fails to compile. Shown error is "pasting "(" and "B" does not give a valid preprocessing token". On the other hand, GCC 2.96 only raises a warning (strange too), but it rightly compiles. dummy.c >#define F(N) A##N >#define X(O,N) F(##O##N) > >int X(B,C); > >int main(void) { > X(B,C) = 3.14; > > return ABC; >} $>gcc-3.3.2 -v -save-temps dummy.c Reading specs from /usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.3.2/specs Configured with: ../configure --prefix=/usr --libdir=/usr/lib --with-slibdir=/lib --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --enable-long-long --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++,ada,f77,objc,java,pascal --host=i586-mandrake-linux-gnu --with-system-zlib Thread model: posix gcc version 3.3.2 (Mandrake Linux 10.0 3.3.2-6mdk) /usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.3.2/cc1 -E -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=2 dummy.c dummy.i ignoring nonexistent directory "/usr/i586-mandrake-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.3.2/include /usr/include End of search list. dummy.c:4:10: pasting "(" and "B" does not give a valid preprocessing token dummy.c:7:8: pasting "(" and "B" does not give a valid preprocessing token dummy.i (GCC 3.3.2) ># 1 "dummy.c" ># 1 "" ># 1 "" ># 1 "dummy.c" > > > >int ABC; > >int main(void) { > ABC = 3.14; > > return ABC; >} $>gcc-2.96 -v -save-temps dummy.c Reading specs from /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/specs gcc version 2.96 20000731 (Mandrake Linux 9.2 2.96-0.83mdk) /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/cpp0 -lang-c -v -D__GNUC__=2 -D__GNUC_MINOR__=96 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux -D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem(posix) -D__NO_INLINE__ -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -D__tune_pentium__ dummy.c dummy.i GNU CPP version 2.96 20000731 (Mandrake Linux 9.2 2.96-0.83mdk) (cpplib) (i386 Linux/ELF) ignoring nonexistent directory "/usr/i586-mandrake-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/include /usr/include End of search list. dummy.c:4:5: warning: pasting "(" and "B" does not give a valid preprocessing token dummy.c:7:3: warning: pasting "(" and "B" does not give a valid preprocessing token /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/cc1 dummy.i -quiet -dumpbase dummy.c -version -o dummy.s GNU C version 2.96 20000731 (Mandrake Linux 9.2 2.96-0.83mdk) (i586-mandrake-linux-gnu) compiled by GNU C version 2.96 20000731 (Mandrake Linux 9.2 2.96-0.83mdk). as -V -Qy -o dummy.o dummy.s GNU assembler version 2.14.90.0.7 (i586-mandrake-linux-gnu) using BFD version 2.14.90.0.7 20031029 /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/collect2 -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/../../../crt1.o /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/../../../crti.o /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/crtbegin.o -L/usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96 -L/usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/../../.. dummy.o -lgcc -lc -lgcc /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/crtend.o /usr/lib/gcc-lib/i586-mandrake-linux-gnu/2.96/../../../crtn.o dummy.i (GCC 2.96) ># 4 "dummy.c" >int ABC; > >int main(void) { > ABC = 3.14; > > return ABC; >} -- Summary: Strange "not give a valid preprocessing token" error with macro substitution Product: gcc Version: 3.3.2 Status: UNCONFIRMED Severity: critical Priority: P2 Component: preprocessor AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: sestegra at free dot fr CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17299