[Bug c++/32008] New: g++ crashes (internal error) on simple code.

["kuba dot skowron at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

g++ hangs computer for about 5 minutes, then reports "internal error".

On program:

#include <iostream>
#include <string>

using namespace std;

int main()
{
  cout << "\e[18t" << flush
  string s;
  return 0;
}

Compiled with:
g++ -c gcc_bug.cpp

He should report "expected ';'" error on line 9 (after flush, before string s),
but instead computer becomes not responsive, and finally g++ is being killed by
the OS.

This bug is triggerd by invalid code, but forgeting about ';' at the end of the
line is very common and cause in this particular situation very severe effect.

When I don't use "using namespace std;", but explicitly write std::cout,
std::flush and std::string, g++ works as he should.

Occurs on:
  gcc version 3.3.5 20050117 (prerelease) (SUSE Linux)
Also occurs on:
  g++ (GCC) 3.3.3 20040412 (Red Hat Linux 3.3.3-7)
Doesn't occur on:
  g++ (GCC) 4.0.3 20060212 (prerelease) (Debian 4.0.2-9)

Additional information:
  output from g++ triggered by 
    g++ -v -save-temps gcc_bug.cpp
  can be found at:
    http://studenci.fuw.edu.pl/~jskow/www/gcc_bug.out

  preprocessed file can be found at:
    http://studenci.fuw.edu.pl/~jskow/www/gcc_bug.ii


-- 
           Summary: g++ crashes (internal error) on simple code.
           Product: gcc
           Version: 3.3.5
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kuba dot skowron at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32008