string_literal.hpp 1.2 KB

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  1. // Copyright David Abrahams 2002.
  2. // Distributed under the Boost Software License, Version 1.0. (See
  3. // accompanying file LICENSE_1_0.txt or copy at
  4. // http://www.boost.org/LICENSE_1_0.txt)
  5. #ifndef STRING_LITERAL_DWA2002629_HPP
  6. # define STRING_LITERAL_DWA2002629_HPP
  7. # include <cstddef>
  8. # include <boost/type.hpp>
  9. # include <boost/python/detail/type_traits.hpp>
  10. # include <boost/mpl/bool.hpp>
  11. # include <boost/detail/workaround.hpp>
  12. namespace boost { namespace python { namespace detail {
  13. template <class T>
  14. struct is_string_literal : mpl::false_
  15. {
  16. };
  17. # if !defined(__MWERKS__) || __MWERKS__ > 0x2407
  18. template <std::size_t n>
  19. struct is_string_literal<char const[n]> : mpl::true_
  20. {
  21. };
  22. # if BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590040)) \
  23. || (defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
  24. // This compiler mistakenly gets the type of string literals as char*
  25. // instead of char[NN].
  26. template <>
  27. struct is_string_literal<char* const> : mpl::true_
  28. {
  29. };
  30. # endif
  31. # else
  32. // CWPro7 has trouble with the array type deduction above
  33. template <class T, std::size_t n>
  34. struct is_string_literal<T[n]>
  35. : is_same<T, char const>
  36. {
  37. };
  38. # endif
  39. }}} // namespace boost::python::detail
  40. #endif // STRING_LITERAL_DWA2002629_HPP