* include/bits/std_valarray.h (valarray<>::operator[] const):

        Return a const reference.
        * testsuite/26_numerics/valarray_const_bracket.cc: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@42245 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 48 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/26_numerics/valarray_const_bracket.cc b/libstdc++-v3/testsuite/26_numerics/valarray_const_bracket.cc
new file mode 100644
index 00000000000..53819f43ad1
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/valarray_const_bracket.cc
@@ -0,0 +1,48 @@
+// 20010518 gdr
+
+// Copyright (C) 2001 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 2, 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <valarray>
+
+// dg-do compile
+
+template<typename P>
+  void copy(P, std::size_t) { }
+
+template<typename T>
+  void test(const std::valarray<T>& v)
+  {
+     copy(&v[0], v.size());
+  }
+
+int main()
+{
+  std::valarray<double> v(190);
+  test(v);
+  return 0;
+}