[Bug c++/52567] constant expression not recognized as being constant

[marc.glisse at normalesup dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52567

--- Comment #1 from Marc Glisse <marc.glisse at normalesup dot org> 2012-03-12 
18:10:16 UTC ---
1<<31 overflows and is thus not a constant. Try maybe 1LL<<31 ?