Have basic_istream seekg, putback and unget first clear eofbit.  Fixes http://llvm.org/bugs/show_bug.cgi?id=13089.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@162608 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed