1 files changed, 83 insertions, 0 deletions
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_init_func.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_init_func.pass.cpp
new file mode 100644
index 000000000000..cfa416434a29
--- /dev/null
+++ b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_init_func.pass.cpp
@@ -0,0 +1,83 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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 RealType = double>
+// class piecewise_linear_distribution
+
+// param_type(initializer_list<result_type> bl, UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double f(double x)
+{
+    return x*2;
+}
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+    {
+        typedef std::piecewise_linear_distribution<> D;
+        typedef D::param_type P;
+        P pa({}, f);
+        std::vector<double> iv = pa.intervals();
+        assert(iv.size() == 2);
+        assert(iv[0] == 0);
+        assert(iv[1] == 1);
+        std::vector<double> dn = pa.densities();
+        assert(dn.size() == 2);
+        assert(dn[0] == 1);
+        assert(dn[1] == 1);
+    }
+    {
+        typedef std::piecewise_linear_distribution<> D;
+        typedef D::param_type P;
+        P pa({12}, f);
+        std::vector<double> iv = pa.intervals();
+        assert(iv.size() == 2);
+        assert(iv[0] == 0);
+        assert(iv[1] == 1);
+        std::vector<double> dn = pa.densities();
+        assert(dn.size() == 2);
+        assert(dn[0] == 1);
+        assert(dn[1] == 1);
+    }
+    {
+        typedef std::piecewise_linear_distribution<> D;
+        typedef D::param_type P;
+        P pa({10, 12}, f);
+        std::vector<double> iv = pa.intervals();
+        assert(iv.size() == 2);
+        assert(iv[0] == 10);
+        assert(iv[1] == 12);
+        std::vector<double> dn = pa.densities();
+        assert(dn.size() == 2);
+        assert(dn[0] == 20./44);
+        assert(dn[1] == 24./44);
+    }
+    {
+        typedef std::piecewise_linear_distribution<> D;
+        typedef D::param_type P;
+        P pa({6, 10, 14}, f);
+        std::vector<double> iv = pa.intervals();
+        assert(iv.size() == 3);
+        assert(iv[0] == 6);
+        assert(iv[1] == 10);
+        assert(iv[2] == 14);
+        std::vector<double> dn = pa.densities();
+        assert(dn.size() == 3);
+        assert(dn[0] == 0.075);
+        assert(dn[1] == 0.125);
+        assert(dn[2] == 0.175);
+    }
+#endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}