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libs/math/example/policy_ref_snip2.cpp

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+//  Copyright John Maddock 2007.
+//  Copyright Paul A. Bristow 2010
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// Note that this file contains quickbook mark-up as well as code
+// and comments, don't change any of the special comment mark-ups!
+
+#include <iostream>
+using std::cout;  using std::endl;
+
+//[policy_ref_snip2
+
+#include <boost/math/distributions/normal.hpp>
+using boost::math::normal_distribution;
+
+using namespace boost::math::policies;
+
+// Define a specific policy:
+typedef policy<
+      overflow_error<ignore_error>
+      > my_policy;
+      
+// Define the distribution, using my_policy:
+typedef normal_distribution<double, my_policy> my_norm;
+
+// Construct a my_norm distribution, using default mean and standard deviation,
+// and get a 0.05 or 5% quantile:
+double q = quantile(my_norm(), 0.05); // = -1.64485
+
+//] //[/policy_ref_snip2]
+
+int main()
+{
+  my_norm n; // Construct a my_norm distribution,
+  // using default mean zero and standard deviation unity.
+  double q = quantile(n, 0.05); // and get a quantile.
+  cout << "quantile(my_norm(), 0.05) = " << q << endl;
+}
+
+/*
+
+Output:
+
+  quantile(my_norm(), 0.05) = -1.64485
+*/