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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 Engine, size_t k>
     13 // class shuffle_order_engine
     14 
     15 // void discard(unsigned long long z);
     16 
     17 #include <random>
     18 #include <cassert>
     19 
     20 void
     21 test1()
     22 {
     23     std::knuth_b e1;
     24     std::knuth_b e2 = e1;
     25     assert(e1 == e2);
     26     e1.discard(3);
     27     assert(e1 != e2);
     28     e2();
     29     e2();
     30     e2();
     31     assert(e1 == e2);
     32 }
     33 
     34 int main()
     35 {
     36     test1();
     37 }
     38