[Bug c++/21960] New: Incorrect Syntax NOT rejected

["eric at ez-soft dot demon dot nl" <gcc-bugzilla at gcc dot gnu dot org>]

Hi,

The code snippet below contains a syntax error.
The line "i = 4," is termited by a "," instead of a ";", but it still compiles 
fine. Even the result of the compilation is correct.
I expected the "Parse error before ..." here, but the compiler doesn't even 
give a warning.

If the line "printf .... " is removed, the compiler give the error message I 
expected. Also when the line would be "int i = 4," the error is given.

I hope you have enough information now.

Regards,

Eric Zuur.

Code snipet:
#include <stdio.h>

int main()
{
    int i;

    i = 4,

    printf("int=%d\n", i);

    return (i);
}


Compiler version and OS information:
nlezu0@kslinux05> g++ -v -save-temps test.cpp
Reading specs from /apps/oss/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/specs
gcc version 2.95.3 20010315 (release)
 /apps/oss/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/cpp0 -lang-c++ -v -D__GNUC__=2 -
D__GNUG__=2 -D__GNUC_MINOR_
_=95 -D__cplusplus -D__ELF__ -Dunix -D__i386__ -Dlinux -D__ELF__ -D__unix__ -
D__i386__ -D__linux__ -D__unix
 -D__linux -Asystem(posix) -D__EXCEPTIONS -Acpu(i386) -Amachine(i386) -Di386 -
D__i386 -D__i386__ -Di686 -Dp
entiumpro -D__i686 -D__i686__ -D__pentiumpro -D__pentiumpro__ test.cpp test.ii
GNU CPP version 2.95.3 20010315 (release) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
 /apps/oss/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/../../../../include/g++-3
 /usr/local/include
 /apps/oss/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/../../../../i686-pc-linux-
gnu/include
 /apps/oss/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/include
 /usr/include
End of search list.
The following default directories have been omitted from the search path:
End of omitted list.
 /apps/oss/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/cc1plus test.ii -quiet -
dumpbase test.cc -version -o test.s
GNU C++ version 2.95.3 20010315 (release) (i686-pc-linux-gnu) compiled by GNU C 
version 2.95.3 20010315 (re
lease).
 as -V -Qy -o test.o test.s
GNU assembler version 2.11.90.0.8 (i386-redhat-linux) using BFD version 
2.11.90.0.8
 /apps/oss/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/collect2 -m elf_i386 -dynamic-
linker /lib/ld-linux.so.2 /us
r/lib/crt1.o /usr/lib/crti.o /apps/oss/lib/gcc-lib/i686-pc-linux-
gnu/2.95.3/crtbegin.o -L/apps/oss/lib/gcc-
lib/i686-pc-linux-gnu/2.95.3 -L/apps/oss/lib test.o -lstdc++ -lm -lgcc -lc -
lgcc /apps/oss/lib/gcc-lib/i686
-pc-linux-gnu/2.95.3/crtend.o /usr/lib/crtn.o

-- 
           Summary: Incorrect Syntax NOT rejected
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: eric at ez-soft dot demon dot nl
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: Linux 2.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21960