From 73c85c7725981585acf752a3a32aca6f50b304a0 Mon Sep 17 00:00:00 2001
From: Howard Hinnant <hhinnant@apple.com>
Date: Thu, 1 Nov 2012 17:32:07 +0000
Subject: [PATCH] peek should set eofbit if sgetc() returns eof.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@167238 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/istream | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/istream b/include/istream
index 72b2004d..7b481864 100644
--- a/include/istream
+++ b/include/istream
@@ -1189,7 +1189,11 @@ basic_istream<_CharT, _Traits>::peek()
 #endif  // _LIBCPP_NO_EXCEPTIONS
         sentry __sen(*this, true);
         if (__sen)
+        {
             __r = this->rdbuf()->sgetc();
+            if (traits_type::eq_int_type(__r, traits_type::eof()))
+                this->setstate(ios_base::eofbit);
+        }
 #ifndef _LIBCPP_NO_EXCEPTIONS
     }
     catch (...)