libcxx/test/std/re/re.traits/length.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <regex>
  10
  11 // template <class charT> struct regex_traits;
  12
  13 // static std::size_t length(const char_type* p);
  14
  15 #include <regex>
  16 #include <cassert>
  17 #include "test_macros.h"
  18
  19 int main(int, char**)
  20 {
  21     assert(std::regex_traits<char>::length("") == 0);
  22     assert(std::regex_traits<char>::length("1") == 1);
  23     assert(std::regex_traits<char>::length("12") == 2);
  24     assert(std::regex_traits<char>::length("123") == 3);
  25
  26 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  27     assert(std::regex_traits<wchar_t>::length(L"") == 0);
  28     assert(std::regex_traits<wchar_t>::length(L"1") == 1);
  29     assert(std::regex_traits<wchar_t>::length(L"12") == 2);
  30     assert(std::regex_traits<wchar_t>::length(L"123") == 3);
  31 #endif
  32
  33   return 0;
  34 }