gcc/testsuite/g++.dg/cpp0x/udlit-string-length.C

   1 // { dg-do compile { target c++11 } }
   2 // PR c++/50941
   3
   4 typedef decltype(sizeof(0)) size_type;
   5
   6 constexpr size_type
   7 operator"" _len(const char*, size_type len)
   8 {
   9   return len;
  10 }
  11
  12 #if __cpp_char8_t
  13 constexpr size_type
  14 operator"" _len(const char8_t*, size_type len)
  15 {
  16   return len;
  17 }
  18 #endif
  19
  20 constexpr size_type
  21 operator"" _len(const wchar_t*, size_type len)
  22 {
  23   return len;
  24 }
  25
  26 constexpr size_type
  27 operator"" _len(const char16_t*, size_type len)
  28 {
  29   return len;
  30 }
  31
  32 constexpr size_type
  33 operator"" _len(const char32_t*, size_type len)
  34 {
  35   return len;
  36 }
  37
  38 static_assert(  ""_len == 0, "Ouch");
  39 static_assert(u8""_len == 0, "Ouch");
  40 static_assert( L""_len == 0, "Ouch");
  41 static_assert( u""_len == 0, "Ouch");
  42 static_assert( U""_len == 0, "Ouch");
  43
  44 static_assert(  "1"_len == 1, "Ouch");
  45 static_assert(u8"1"_len == 1, "Ouch");
  46 static_assert( L"1"_len == 1, "Ouch");
  47 static_assert( u"1"_len == 1, "Ouch");
  48 static_assert( U"1"_len == 1, "Ouch");
  49
  50 static_assert(  "123"_len == 3, "Ouch");
  51 static_assert(u8"123"_len == 3, "Ouch");
  52 static_assert( L"123"_len == 3, "Ouch");
  53 static_assert( u"123"_len == 3, "Ouch");
  54 static_assert( U"123"_len == 3, "Ouch");