Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /proc/thread-self/root/usr/include/boost/test/utils/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

//  (C) Copyright Gennadiy Rozental 2001.
//  Distributed under the Boost Software License, Version 1.0.
//  (See accompanying file LICENSE_1_0.txt or copy at
//  http://www.boost.org/LICENSE_1_0.txt)

//  See http://www.boost.org/libs/test for the library home page.
//
//  File        : $RCSfile$
//
//  Version     : $Revision$
//
//  Description : defines the is_cstring type trait
// ***************************************************************************

#ifndef BOOST_TEST_UTILS_IS_CSTRING_HPP
#define BOOST_TEST_UTILS_IS_CSTRING_HPP

// Boost
#include <boost/mpl/bool.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/decay.hpp>
#include <boost/type_traits/remove_pointer.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/type_traits/add_const.hpp>

#include <boost/test/utils/basic_cstring/basic_cstring_fwd.hpp>
#include <string>

//____________________________________________________________________________//

namespace boost {
namespace unit_test {

// ************************************************************************** //
// **************                  is_cstring                  ************** //
// ************************************************************************** //

namespace ut_detail {

template<typename T>
struct is_cstring_impl : public mpl::false_ {};

template<typename T>
struct is_cstring_impl<T const*> : public is_cstring_impl<T*> {};

template<typename T>
struct is_cstring_impl<T const* const> : public is_cstring_impl<T*> {};

template<>
struct is_cstring_impl<char*> : public mpl::true_ {};

template<>
struct is_cstring_impl<wchar_t*> : public mpl::true_ {};

template <typename T, bool is_cstring = is_cstring_impl<typename boost::decay<T>::type>::value >
struct deduce_cstring_impl;

template <typename T, bool is_cstring >
struct deduce_cstring_impl<T&, is_cstring> : public deduce_cstring_impl<T, is_cstring>{};

template <typename T, bool is_cstring >
struct deduce_cstring_impl<T const, is_cstring> : public deduce_cstring_impl<T, is_cstring>{};

template <typename T>
struct deduce_cstring_impl<T, true> {
    typedef typename boost::add_const<
        typename boost::remove_pointer<
            typename boost::decay<T>::type
        >::type
    >::type U;
    typedef boost::unit_test::basic_cstring<U> type;
};

template <typename T>
struct deduce_cstring_impl< T, false > {
    typedef typename
        boost::remove_const<
            typename boost::remove_reference<T>::type
        >::type type;
};

template <typename T>
struct deduce_cstring_impl< std::basic_string<T, std::char_traits<T> >, false > {
    typedef boost::unit_test::basic_cstring<typename boost::add_const<T>::type> type;
};

} // namespace ut_detail

template<typename T>
struct is_cstring : public ut_detail::is_cstring_impl<typename decay<T>::type> {};

template<typename T, bool is_cstring = is_cstring<typename boost::decay<T>::type>::value >
struct is_cstring_comparable: public mpl::false_ {};

template<typename T>
struct is_cstring_comparable< T, true > : public mpl::true_ {};

template<typename T>
struct is_cstring_comparable< std::basic_string<T, std::char_traits<T> >, false > : public mpl::true_ {};

template<typename T>
struct is_cstring_comparable< boost::unit_test::basic_cstring<T>, false > : public mpl::true_ {};

template <class T>
struct deduce_cstring {
    typedef typename
        boost::remove_const<
            typename boost::remove_reference<T>::type
        >::type U;
    typedef typename ut_detail::deduce_cstring_impl<typename boost::decay<U>::type>::type type;
};

} // namespace unit_test
} // namespace boost

#endif // BOOST_TEST_UTILS_IS_CSTRING_HPP