1 files changed, 94 insertions, 0 deletions
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_iterator.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_iterator.pass.cpp
new file mode 100644
index 000000000000..7ef646707c14
--- /dev/null
+++ b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_iterator.pass.cpp
@@ -0,0 +1,94 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template<class InputIterator>
+//     param_type(InputIterator firstW, InputIterator lastW);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+    {
+        typedef std::discrete_distribution<> D;
+        typedef D::param_type P;
+        double p0[] = {1};
+        P pa(p0, p0);
+        std::vector<double> p = pa.probabilities();
+        assert(p.size() == 1);
+        assert(p[0] == 1);
+    }
+    {
+        typedef std::discrete_distribution<> D;
+        typedef D::param_type P;
+        double p0[] = {10};
+        P pa(p0, p0+1);
+        std::vector<double> p = pa.probabilities();
+        assert(p.size() == 1);
+        assert(p[0] == 1);
+    }
+    {
+        typedef std::discrete_distribution<> D;
+        typedef D::param_type P;
+        double p0[] = {10, 30};
+        P pa(p0, p0+2);
+        std::vector<double> p = pa.probabilities();
+        assert(p.size() == 2);
+        assert(p[0] == 0.25);
+        assert(p[1] == 0.75);
+    }
+    {
+        typedef std::discrete_distribution<> D;
+        typedef D::param_type P;
+        double p0[] = {30, 10};
+        P pa(p0, p0+2);
+        std::vector<double> p = pa.probabilities();
+        assert(p.size() == 2);
+        assert(p[0] == 0.75);
+        assert(p[1] == 0.25);
+    }
+    {
+        typedef std::discrete_distribution<> D;
+        typedef D::param_type P;
+        double p0[] = {30, 0, 10};
+        P pa(p0, p0+3);
+        std::vector<double> p = pa.probabilities();
+        assert(p.size() == 3);
+        assert(p[0] == 0.75);
+        assert(p[1] == 0);
+        assert(p[2] == 0.25);
+    }
+    {
+        typedef std::discrete_distribution<> D;
+        typedef D::param_type P;
+        double p0[] = {0, 30, 10};
+        P pa(p0, p0+3);
+        std::vector<double> p = pa.probabilities();
+        assert(p.size() == 3);
+        assert(p[0] == 0);
+        assert(p[1] == 0.75);
+        assert(p[2] == 0.25);
+    }
+    {
+        typedef std::discrete_distribution<> D;
+        typedef D::param_type P;
+        double p0[] = {0, 0, 10};
+        P pa(p0, p0+3);
+        std::vector<double> p = pa.probabilities();
+        assert(p.size() == 3);
+        assert(p[0] == 0);
+        assert(p[1] == 0);
+        assert(p[2] == 1);
+    }
+}