libcxx/test/std/re/re.regex/re.regex.const/constants.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, class traits = regex_traits<charT>>
  12 // class basic_regex
  13 // {
  14 // public:
  15 //     // constants:
  16 //     static constexpr regex_constants::syntax_option_type icase = regex_constants::icase;
  17 //     static constexpr regex_constants::syntax_option_type nosubs = regex_constants::nosubs;
  18 //     static constexpr regex_constants::syntax_option_type optimize = regex_constants::optimize;
  19 //     static constexpr regex_constants::syntax_option_type collate = regex_constants::collate;
  20 //     static constexpr regex_constants::syntax_option_type ECMAScript = regex_constants::ECMAScript;
  21 //     static constexpr regex_constants::syntax_option_type basic = regex_constants::basic;
  22 //     static constexpr regex_constants::syntax_option_type extended = regex_constants::extended;
  23 //     static constexpr regex_constants::syntax_option_type awk = regex_constants::awk;
  24 //     static constexpr regex_constants::syntax_option_type grep = regex_constants::grep;
  25 //     static constexpr regex_constants::syntax_option_type egrep = regex_constants::egrep;
  26
  27 #include <regex>
  28 #include <type_traits>
  29 #include "test_macros.h"
  30
  31 template <class T>
  32 void where(const T &) {}
  33
  34 template <class CharT>
  35 void
  36 test()
  37 {
  38     typedef std::basic_regex<CharT> BR;
  39     static_assert((BR::icase == std::regex_constants::icase), "");
  40     static_assert((BR::nosubs == std::regex_constants::nosubs), "");
  41     static_assert((BR::optimize == std::regex_constants::optimize), "");
  42     static_assert((BR::collate == std::regex_constants::collate), "");
  43     static_assert((BR::ECMAScript == std::regex_constants::ECMAScript), "");
  44     static_assert((BR::basic == std::regex_constants::basic), "");
  45     static_assert((BR::extended == std::regex_constants::extended), "");
  46     static_assert((BR::awk == std::regex_constants::awk), "");
  47     static_assert((BR::grep == std::regex_constants::grep), "");
  48     static_assert((BR::egrep == std::regex_constants::egrep), "");
  49     where(BR::icase);
  50     where(BR::nosubs);
  51     where(BR::optimize);
  52     where(BR::collate);
  53     where(BR::ECMAScript);
  54     where(BR::basic);
  55     where(BR::extended);
  56     where(BR::awk);
  57     where(BR::grep);
  58     where(BR::egrep);
  59 }
  60
  61 int main(int, char**)
  62 {
  63     test<char>();
  64     test<wchar_t>();
  65
  66   return 0;
  67 }