1 files changed, 34 insertions, 0 deletions

diff --git a/libcxx/test/numerics/numarray/template.valarray/valarray.sub/valarray_bool_const.pass.cpp b/libcxx/test/numerics/numarray/template.valarray/valarray.sub/valarray_bool_const.pass.cpp
new file mode 100644
index 00000000000..c941d3d73fb
--- /dev/null
+++ b/libcxx/test/numerics/numarray/template.valarray/valarray.sub/valarray_bool_const.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <valarray>
+
+// template<class T> class valarray;
+
+// valarray operator[](const valarray<bool>& vb) const;
+
+#include <valarray>
+#include <cassert>
+
+int main()
+{
+    int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
+    const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
+    bool b[N1] = {true,  false, false, true,  true,  false,
+                  false, true,  false, false, false, true};
+    std::valarray<int> v1(a1, N1);
+    std::valarray<bool> vb(b, N1);
+    std::valarray<int> v2(v1[vb]);
+    assert(v2.size() == 5);
+    assert(v2[ 0] ==  0);
+    assert(v2[ 1] ==  3);
+    assert(v2[ 2] ==  4);
+    assert(v2[ 3] ==  7);
+    assert(v2[ 4] == 11);
+}