1 files changed, 50 insertions, 0 deletions
diff --git a/test/std/algorithms/alg.modifying.operations/alg.generate/generate_n.pass.cpp b/test/std/algorithms/alg.modifying.operations/alg.generate/generate_n.pass.cpp
new file mode 100644
index 0000000000000..a9ccaf4cd9594
--- /dev/null
+++ b/test/std/algorithms/alg.modifying.operations/alg.generate/generate_n.pass.cpp
@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <algorithm>
+
+// template<class Iter, IntegralLike Size, Callable Generator>
+//   requires OutputIterator<Iter, Generator::result_type>
+//         && CopyConstructible<Generator>
+//   void
+//   generate_n(Iter first, Size n, Generator gen);
+
+#include <algorithm>
+#include <cassert>
+
+#include "test_iterators.h"
+#include "user_defined_integral.hpp"
+
+typedef UserDefinedIntegral<unsigned> UDI;
+
+struct gen_test
+{
+    int operator()() const {return 2;}
+};
+
+template <class Iter>
+void
+test()
+{
+    const unsigned n = 4;
+    int ia[n] = {0};
+    assert(std::generate_n(Iter(ia), UDI(n), gen_test()) == Iter(ia+n));
+    assert(ia[0] == 2);
+    assert(ia[1] == 2);
+    assert(ia[2] == 2);
+    assert(ia[3] == 2);
+}
+
+int main()
+{
+    test<forward_iterator<int*> >();
+    test<bidirectional_iterator<int*> >();
+    test<random_access_iterator<int*> >();
+    test<int*>();
+}