ceph/src/boost/libs/yap/test/depth_stress_test_right.cpp

   1 // Copyright (C) 2016-2018 T. Zachary Laine
   2 //
   3 // Distributed under the Boost Software License, Version 1.0. (See
   4 // accompanying file LICENSE_1_0.txt or copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6 #include <boost/yap/expression.hpp>
   7
   8 #include <boost/test/minimal.hpp>
   9
  10 #include <sstream>
  11
  12
  13 template<typename T>
  14 using term = boost::yap::terminal<boost::yap::expression, T>;
  15
  16 namespace yap = boost::yap;
  17
  18
  19 int test_main(int, char * [])
  20 {
  21     {
  22         term<double> unity{1.0};
  23
  24         {
  25             auto expr =
  26                 unity + unity + unity + unity + unity + unity + unity + unity;
  27             double result = boost::yap::evaluate(expr);
  28             BOOST_CHECK(result == 8.0);
  29         }
  30
  31         {
  32             auto expr =
  33                 unity + unity + unity + unity + unity + unity + unity + unity +
  34                 unity + unity + unity + unity + unity + unity + unity + unity +
  35                 unity + unity + unity + unity + unity + unity + unity + unity +
  36                 unity + unity + unity + unity + unity + unity + unity + unity +
  37
  38                 unity + unity + unity + unity + unity + unity + unity + unity +
  39                 unity + unity + unity + unity + unity + unity + unity + unity +
  40                 unity + unity + unity + unity + unity + unity + unity + unity +
  41                 unity + unity + unity + unity + unity + unity + unity + unity;
  42             double result = boost::yap::evaluate(expr);
  43             BOOST_CHECK(result == 64.0);
  44         }
  45
  46 #if 0 // This makes the Travis VMs barf.
  47     {
  48         auto expr =
  49             unity + unity + unity + unity +    unity + unity + unity + unity +
  50             unity + unity + unity + unity +    unity + unity + unity + unity +
  51             unity + unity + unity + unity +    unity + unity + unity + unity +
  52             unity + unity + unity + unity +    unity + unity + unity + unity +
  53
  54             unity + unity + unity + unity +    unity + unity + unity + unity +
  55             unity + unity + unity + unity +    unity + unity + unity + unity +
  56             unity + unity + unity + unity +    unity + unity + unity + unity +
  57             unity + unity + unity + unity +    unity + unity + unity + unity;
  58         double result = boost::yap::evaluate(
  59             expr + expr + expr + expr +    expr + expr + expr + expr +
  60             expr + expr + expr + expr +    expr + expr + expr + expr +
  61             expr + expr + expr + expr +    expr + expr + expr + expr +
  62             expr + expr + expr + expr +    expr + expr + expr + expr
  63         );
  64         BOOST_CHECK(result == 64.0 * 32.0);
  65     }
  66 #endif
  67     }
  68
  69     return 0;
  70 }