ceph/src/boost/libs/multiprecision/test/bug11922.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //  Copyright 2016 John Maddock. Distributed under the Boost
   3 //  Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <boost/multiprecision/cpp_int.hpp>
   7 #include <memory>
   8
   9 #if defined(__apple_build_version__) && (__clang_major__ < 9)
  10 //
  11 // Apples clang fails with:
  12 // error: no matching function for call to '__implicit_conversion_to'
  13 // Which is nothing to do with us really...
  14 //
  15 #define DISABLE_TEST
  16 #endif
  17
  18 typedef boost::multiprecision::cpp_int mp_int;
  19
  20 #if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS) && !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) && !defined(DISABLE_TEST)
  21
  22 class Int1
  23 {
  24  public:
  25    Int1(const mp_int& i) {}
  26    Int1(const Int1& i) {}
  27 };
  28
  29 class Int2
  30 {
  31  public:
  32    Int2(const mp_int& i) {}
  33    Int2(const Int2& i) = delete;
  34 };
  35
  36 int main()
  37 {
  38    using namespace boost::multiprecision;
  39
  40    mp_int i(10);
  41    Int1   a(i + 10);
  42    Int2   b(i + 20);
  43
  44 #ifndef BOOST_NO_CXX11_SMART_PTR
  45
  46    std::shared_ptr<Int1> p1 = std::make_shared<Int1>(i + 10);
  47    std::shared_ptr<Int2> p2 = std::make_shared<Int2>(i + 10);
  48
  49 #endif
  50
  51    return 0;
  52 }
  53
  54 #else
  55
  56 int main()
  57 {
  58    return 0;
  59 }
  60
  61 #endif