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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <random>
     11 
     12 // template<class RealType = double>
     13 // class piecewise_constant_distribution
     14 
     15 // explicit piecewise_constant_distribution(const param_type& parm);
     16 
     17 #include <random>
     18 #include <cassert>
     19 
     20 int main()
     21 {
     22     {
     23         typedef std::piecewise_constant_distribution<> D;
     24         typedef D::param_type P;
     25         double b[] = {10, 14, 16, 17};
     26         double p[] = {25, 62.5, 12.5};
     27         P pa(b, b+4, p);
     28         D d(pa);
     29         std::vector<double> iv = d.intervals();
     30         assert(iv.size() == 4);
     31         assert(iv[0] == 10);
     32         assert(iv[1] == 14);
     33         assert(iv[2] == 16);
     34         assert(iv[3] == 17);
     35         std::vector<double> dn = d.densities();
     36         assert(dn.size() == 3);
     37         assert(dn[0] == .0625);
     38         assert(dn[1] == .3125);
     39         assert(dn[2] == .125);
     40     }
     41 }
     42