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

   1 // Copyright 2021 Peter Dimov
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // https://www.boost.org/LICENSE_1_0.txt
   4
   5 #include <boost/core/detail/string_view.hpp>
   6 #include <boost/core/lightweight_test.hpp>
   7 #include <string>
   8 #if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
   9 # include <string_view>
  10 #endif
  11 #if !defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
  12 # include <memory_resource>
  13 #endif
  14
  15 boost::core::string_view f( boost::core::string_view const& str )
  16 {
  17     return str;
  18 }
  19
  20 int main()
  21 {
  22     {
  23         std::string s1( "123" );
  24         std::string s2 = f( s1 );
  25
  26         BOOST_TEST_EQ( s1, s2 );
  27     }
  28
  29 #if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
  30
  31     {
  32         std::string_view s1( "123" );
  33         std::string_view s2 = f( s1 );
  34
  35         BOOST_TEST_EQ( s1, s2 );
  36     }
  37
  38 #endif
  39
  40 #if !defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
  41
  42     {
  43         using pmr_string = std::basic_string<char, std::char_traits<char>, std::pmr::polymorphic_allocator<char>>;
  44
  45         pmr_string s1( "123" );
  46         pmr_string s2 = f( s1 );
  47
  48         BOOST_TEST_EQ( s1, s2 );
  49     }
  50
  51 #endif
  52
  53     return boost::report_errors();
  54 }