src/third_party/libc++/trunk/test/strings/char.traits/char.traits.specializations/char.traits.specializations.char16_t/length.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // <string>
  11
  12 // template<> struct char_traits<char16_t>
  13
  14 // static size_t length(const char_type* s);
  15
  16 #include <string>
  17 #include <cassert>
  18
  19 int main()
  20 {
  21 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
  22     assert(std::char_traits<char16_t>::length(u"") == 0);
  23     assert(std::char_traits<char16_t>::length(u"a") == 1);
  24     assert(std::char_traits<char16_t>::length(u"aa") == 2);
  25     assert(std::char_traits<char16_t>::length(u"aaa") == 3);
  26     assert(std::char_traits<char16_t>::length(u"aaaa") == 4);
  27 #endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
  28 }