ceph/src/boost/libs/core/test/alloc_construct_throws_test.cpp

   1 /*
   2 Copyright 2019 Glen Joseph Fernandes
   3 (glenjofe@gmail.com)
   4
   5 Distributed under the Boost Software License, Version 1.0.
   6 (http://www.boost.org/LICENSE_1_0.txt)
   7 */
   8 #include <boost/core/alloc_construct.hpp>
   9 #include <boost/core/default_allocator.hpp>
  10 #include <boost/core/lightweight_test.hpp>
  11
  12 class type {
  13 public:
  14     type() {
  15         if (count == 4) {
  16             throw true;
  17         }
  18         ++count;
  19     }
  20
  21     ~type() {
  22         --count;
  23     }
  24
  25     static int count;
  26
  27 private:
  28     type(const type&);
  29     type& operator=(const type&);
  30 };
  31
  32 int type::count = 0;
  33
  34 int main()
  35 {
  36     boost::default_allocator<type> a;
  37     type* p = a.allocate(5);
  38     try {
  39         boost::alloc_construct_n(a, p, 5);
  40         BOOST_ERROR("construct_n did not throw");
  41     } catch (...) {
  42         BOOST_TEST_EQ(type::count, 0);
  43     }
  44     a.deallocate(p, 5);
  45     return boost::report_errors();
  46 }