ACE/tests/Compiler_Features_19_Test.cpp

   1 /**
   2  * This program checks if the compiler / platform supports aliased
   3  * templates
   4  */
   5
   6 #include "test_config.h"
   7
   8 #if defined (ACE_HAS_CPP11)
   9
  10 #include <string>
  11 #include <iostream>
  12 #include <cstdint>
  13
  14 namespace IDL
  15 {
  16   template<typename _CharT, const uint32_t _Bound,
  17            typename _Traits = std::char_traits<_CharT>,
  18            typename _Alloc = std::allocator<_CharT> >
  19     class bounded_basic_string : public std::basic_string<_CharT, _Traits, _Alloc>
  20     {
  21       typedef std::basic_string<_CharT, _Traits, _Alloc>  _String;
  22
  23     public:
  24       static const uint32_t                               bound_ = _Bound;
  25
  26       bounded_basic_string() { }
  27
  28       bounded_basic_string(const _CharT* __s,
  29                            const _Alloc& __a = _Alloc ())
  30        : _String(__s, __a) { }
  31
  32       ~bounded_basic_string() noexcept
  33       {}
  34
  35       uint32_t bound () const
  36       {
  37         return _Bound;
  38       }
  39
  40     };
  41
  42   template <const uint32_t _Bound>
  43     using bounded_string = bounded_basic_string<char, _Bound>;
  44 };
  45
  46 int
  47 run_main (int, ACE_TCHAR *[])
  48 {
  49   ACE_START_TEST (ACE_TEXT("Compiler_Features_19_Test"));
  50
  51   typedef IDL::bounded_string<100> string100;
  52   string100 s100("world");
  53
  54   ACE_DEBUG ((LM_DEBUG,
  55               ACE_TEXT ("String %C bound %d\n"), s100.c_str(), s100.bound ()));
  56
  57   ACE_DEBUG ((LM_INFO,
  58               ACE_TEXT ("Template alias works.\n")));
  59
  60   ACE_END_TEST;
  61
  62   return 0;
  63 }
  64
  65 #else
  66 int
  67 run_main (int, ACE_TCHAR *[])
  68 {
  69   ACE_START_TEST (ACE_TEXT("Compiler_Features_19_Test"));
  70
  71   ACE_DEBUG ((LM_INFO,
  72               ACE_TEXT ("No C++11 support enabled\n")));
  73
  74   ACE_END_TEST;
  75   return 0;
  76 }
  77
  78 #endif