diff options
Diffstat (limited to 'boost/xpressive/detail/static/type_traits.hpp')
| -rw-r--r-- | boost/xpressive/detail/static/type_traits.hpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/boost/xpressive/detail/static/type_traits.hpp b/boost/xpressive/detail/static/type_traits.hpp index 67ba77e328..15f00a4243 100644 --- a/boost/xpressive/detail/static/type_traits.hpp +++ b/boost/xpressive/detail/static/type_traits.hpp @@ -13,6 +13,8 @@ # pragma once #endif +#include <string> +#include <boost/config.hpp> #include <boost/mpl/bool.hpp> #include <boost/iterator/iterator_traits.hpp> #include <boost/type_traits/is_convertible.hpp> @@ -55,6 +57,59 @@ struct is_random { }; +////////////////////////////////////////////////////////////////////////// +// is_string_iterator +// +template<typename Iter> +struct is_string_iterator + : mpl::false_ +{ +}; + +template<> +struct is_string_iterator<std::string::iterator> + : mpl::true_ +{ +}; + +template<> +struct is_string_iterator<std::string::const_iterator> + : mpl::true_ +{ +}; + +#ifndef BOOST_NO_STD_WSTRING +template<> +struct is_string_iterator<std::wstring::iterator> + : mpl::true_ +{ +}; + +template<> +struct is_string_iterator<std::wstring::const_iterator> + : mpl::true_ +{ +}; +#endif + +/////////////////////////////////////////////////////////////////////////////// +// is_char +// +template<typename T> +struct is_char + : mpl::false_ +{}; + +template<> +struct is_char<char> + : mpl::true_ +{}; + +template<> +struct is_char<wchar_t> + : mpl::true_ +{}; + }}} // namespace boost::xpressive::detail #endif |