It appears that the standard accidentally removed the default constructor for error_category.  I'm putting it back in.  This fixes http://llvm.org/bugs/show_bug.cgi?id=12321.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@153194 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed