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diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/readsome/char/6746-1.cc b/libstdc++-v3/testsuite/27_io/basic_istream/readsome/char/6746-1.cc
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+++ b/libstdc++-v3/testsuite/27_io/basic_istream/readsome/char/6746-1.cc
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+// 1999-08-11 bkoz
+
+// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// .
+
+// 27.6.1.3 unformatted input functions
+
+#include
+#include
+#include
+
+// libstdc++/6746
+void test12()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+ streamsize sum = 0;
+ istringstream iss("shamma shamma");
+
+ // test01
+ size_t i = iss.rdbuf()->in_avail();
+ VERIFY( i != 0 );
+
+ // test02
+ streamsize extracted;
+ do
+ {
+ char buf[1024];
+ extracted = iss.readsome(buf, sizeof buf);
+ sum += extracted;
+ }
+ while (iss.good() && extracted);
+ VERIFY( sum != 0 );
+}
+
+int
+main()
+{
+ test12();
+ return 0;
+}