gcc/testsuite/g++.dg/cpp1z/utf8.C

   1 // { dg-do compile { target c++17 } }
   2
   3 #include <cassert>
   4 #include <experimental/type_traits>
   5
   6 auto c = 'c';
   7 auto u8c = u8'c';
   8
   9 #if __cpp_char8_t
  10 static_assert(!std::experimental::is_same_v<decltype(u8c), decltype(c)>, "");
  11 #else
  12 static_assert(std::experimental::is_same_v<decltype(u8c), decltype(c)>, "");
  13 #endif
  14
  15 auto u8s = u8"c";
  16 auto x = u8s[0];
  17
  18 static_assert(std::experimental::is_same_v<decltype(u8c), decltype(x)>, "");