[Bug libstdc++/69486] New: Strange behaviour of bitset and c++11

[boris at dolgov dot name]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69486

            Bug ID: 69486
           Summary: Strange behaviour of bitset and c++11
           Product: gcc
           Version: 4.9.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: boris at dolgov dot name
  Target Milestone: ---

Hello!

When I try to compile the following program

#include <bitset>
std::bitset<2147483648> b;
int main() {}

cc1plus tries to eat all available memory and hangs.

Compilation command is g++ -o test test.cpp -std=c++11

When I use -std=c++98, everything works fine.