external/bsd/libc++/dist/libcxx/test/strings/basic.string.literals/literal.pass.cpp

   1 // -*- C++ -*-
   2 //===----------------------------------------------------------------------===//
   3 //
   4 //                     The LLVM Compiler Infrastructure
   5 //
   6 // This file is dual licensed under the MIT and the University of Illinois Open
   7 // Source Licenses. See LICENSE.TXT for details.
   8 //
   9 //===----------------------------------------------------------------------===//
  10 #include <string>
  11 #include <cassert>
  12
  13 int main()
  14 {
  15 #if _LIBCPP_STD_VER > 11
  16     using namespace std::literals::string_literals;
  17
  18     static_assert ( std::is_same<decltype(   "Hi"s), std::string>::value, "" );
  19     static_assert ( std::is_same<decltype( u8"Hi"s), std::string>::value, "" );
  20     static_assert ( std::is_same<decltype(  L"Hi"s), std::wstring>::value, "" );
  21     static_assert ( std::is_same<decltype(  u"Hi"s), std::u16string>::value, "" );
  22     static_assert ( std::is_same<decltype(  U"Hi"s), std::u32string>::value, "" );
  23
  24     std::string foo;
  25     std::wstring Lfoo;
  26     std::u16string ufoo;
  27     std::u32string Ufoo;
  28
  29     foo  =   ""s;     assert( foo.size() == 0);
  30     foo  = u8""s;     assert( foo.size() == 0);
  31     Lfoo =  L""s;     assert(Lfoo.size() == 0);
  32     ufoo =  u""s;     assert(ufoo.size() == 0);
  33     Ufoo =  U""s;     assert(Ufoo.size() == 0);
  34
  35     foo  =   " "s;     assert( foo.size() == 1);
  36     foo  = u8" "s;     assert( foo.size() == 1);
  37     Lfoo =  L" "s;     assert(Lfoo.size() == 1);
  38     ufoo =  u" "s;     assert(ufoo.size() == 1);
  39     Ufoo =  U" "s;     assert(Ufoo.size() == 1);
  40
  41     foo  =   "ABC"s;     assert( foo ==   "ABC");   assert( foo == std::string   (  "ABC"));
  42     foo  = u8"ABC"s;     assert( foo == u8"ABC");   assert( foo == std::string   (u8"ABC"));
  43     Lfoo =  L"ABC"s;     assert(Lfoo ==  L"ABC");   assert(Lfoo == std::wstring  ( L"ABC"));
  44     ufoo =  u"ABC"s;     assert(ufoo ==  u"ABC");   assert(ufoo == std::u16string( u"ABC"));
  45     Ufoo =  U"ABC"s;     assert(Ufoo ==  U"ABC");   assert(Ufoo == std::u32string( U"ABC"));
  46 #endif
  47 }