ceph/src/boost/libs/optional/test/optional_test_empty_braces.cpp

   1 // Copyright (C) 2016 Andrzej Krzemienski.
   2 //
   3 // Use, modification, and distribution is subject to the Boost Software
   4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // See http://www.boost.org/lib/optional for documentation.
   8 //
   9 // You are welcome to contact the author at:
  10 //  akrzemi1@gmail.com
  11
  12 #include "boost/optional/optional.hpp"
  13
  14 #ifdef BOOST_BORLANDC
  15 #pragma hdrstop
  16 #endif
  17
  18 #include "boost/core/lightweight_test.hpp"
  19
  20 //#ifndef BOOST_OPTIONAL_NO_CONVERTING_ASSIGNMENT
  21 //#ifndef BOOST_OPTIONAL_NO_CONVERTING_COPY_CTOR
  22
  23 using boost::optional;
  24
  25 struct Value
  26 {
  27   explicit Value(int) {}
  28 };
  29
  30 #ifndef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
  31 template <typename T>
  32 void test_brace_init()
  33 {
  34   optional<T> o = {};
  35   BOOST_TEST(!o);
  36 }
  37
  38 template <typename T>
  39 void test_brace_assign()
  40 {
  41   optional<T> o;
  42   o = {};
  43   BOOST_TEST(!o);
  44 }
  45 #endif
  46
  47 int main()
  48 {
  49 #ifndef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
  50   test_brace_init<int>();
  51   test_brace_init<Value>();
  52   test_brace_assign<int>();
  53   test_brace_assign<Value>();
  54 #endif
  55
  56   return boost::report_errors();
  57 }