Set the buffer of an fstream to empty when the underlying file is closed. This 'fixes' PR#38052 - std::fstream still good after closing and updating content.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@350603 91177308-0d34-0410-b5e6-96231b3b80d8
2019-01-08 02:48:45 +00:00
parent 354589c472
commit 11a8815e5a
2 changed files with 36 additions and 0 deletions
--- a/include/fstream
+++ b/include/fstream
@@ -702,6 +702,7 @@ basic_filebuf<_CharT, _Traits>::close()
            __file_ = 0;
        else
            __rt = 0;
+        setbuf(0, 0);
    }
    return __rt;
 }