[gcc(refs/vendors/redhat/heads/gcc-10-branch)] libstdc++: Add test for using istreambuf_iterator with sentinel

Jakub Jelinek jakub@gcc.gnu.org
Thu Apr 30 21:59:31 GMT 2020


https://gcc.gnu.org/g:86119f14171a3e660e65004d9a168821c31f297e

commit 86119f14171a3e660e65004d9a168821c31f297e
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Mon Apr 20 22:06:32 2020 +0100

    libstdc++: Add test for using istreambuf_iterator with sentinel
    
    This test was supposed to be added two months ago as part of commit
    120e873484f20d9a0b8400e2e464ac5b2088a747 but was omitted by mistake.
    
            * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.

Diff:
---
 libstdc++-v3/ChangeLog                             |  2 +
 .../24_iterators/istreambuf_iterator/sentinel.cc   | 53 ++++++++++++++++++++++
 2 files changed, 55 insertions(+)

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 932e2afe812..0cce2b03c18 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,7 @@
 2020-04-20  Jonathan Wakely  <jwakely@redhat.com>
 
+	* testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
+
 	* testsuite/20_util/is_constructible/51185.cc: Make test class a
 	non-aggregate so that the test verifies the same thing in all -std
 	modes.
diff --git a/libstdc++-v3/testsuite/24_iterators/istreambuf_iterator/sentinel.cc b/libstdc++-v3/testsuite/24_iterators/istreambuf_iterator/sentinel.cc
new file mode 100644
index 00000000000..c39e83e5804
--- /dev/null
+++ b/libstdc++-v3/testsuite/24_iterators/istreambuf_iterator/sentinel.cc
@@ -0,0 +1,53 @@
+// { dg-options "-std=gnu++2a" }
+// { dg-do run { target c++2a } }
+
+// Copyright (C) 2020 Free Software Foundation, Inc.
+//
+// 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
+// <http://www.gnu.org/licenses/>.
+
+#include <iterator>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  static_assert( std::sentinel_for<std::default_sentinel_t,
+				   std::istreambuf_iterator<char>> );
+
+  std::istreambuf_iterator<char> i = std::default_sentinel;
+  VERIFY( i == std::default_sentinel );
+  VERIFY( std::default_sentinel == i );
+}
+
+void
+test02()
+{
+  std::istringstream in("abc");
+  std::istreambuf_iterator<char> iter(in);
+  VERIFY( iter != std::default_sentinel );
+  VERIFY( std::default_sentinel != iter );
+
+  std::next(iter, 3);
+  VERIFY( iter == std::default_sentinel );
+  VERIFY( std::default_sentinel == iter );
+}
+
+int main()
+{
+  test01();
+  test02();
+}


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