diff options
Diffstat (limited to 'boost/spirit/home/classic/meta/impl/parser_traits.ipp')
| -rw-r--r-- | boost/spirit/home/classic/meta/impl/parser_traits.ipp | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/boost/spirit/home/classic/meta/impl/parser_traits.ipp b/boost/spirit/home/classic/meta/impl/parser_traits.ipp index e648acd4d0..846a58b75f 100644 --- a/boost/spirit/home/classic/meta/impl/parser_traits.ipp +++ b/boost/spirit/home/classic/meta/impl/parser_traits.ipp @@ -21,80 +21,6 @@ BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN namespace impl { -#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) - - /////////////////////////////////////////////////////////////////////////// - // - // from spirit 1.1 (copyright (c) 2001 Bruce Florman) - // various workarounds to support compile time decisions without partial - // template specialization whether a given type is an instance of a - // concrete parser type. - // - /////////////////////////////////////////////////////////////////////////// - - /////////////////////////////////////////////////////////////////////////// - template <typename T> - struct parser_type_traits - { - // Determine at compile time (without partial specialization) - // whether a given type is an instance of the alternative<A,B> - - static T t(); - - typedef struct { char dummy[1]; } size1_t; - typedef struct { char dummy[2]; } size2_t; - typedef struct { char dummy[3]; } size3_t; - typedef struct { char dummy[4]; } size4_t; - typedef struct { char dummy[5]; } size5_t; - typedef struct { char dummy[6]; } size6_t; - typedef struct { char dummy[7]; } size7_t; - typedef struct { char dummy[8]; } size8_t; - typedef struct { char dummy[9]; } size9_t; - typedef struct { char dummy[10]; } size10_t; - - // the following functions need no implementation - template <typename A, typename B> - static size1_t test_(alternative<A, B> const&); - template <typename A, typename B> - static size2_t test_(sequence<A, B> const&); - template <typename A, typename B> - static size3_t test_(sequential_or<A, B> const&); - template <typename A, typename B> - static size4_t test_(intersection<A, B> const&); - template <typename A, typename B> - static size5_t test_(difference<A, B> const&); - template <typename A, typename B> - static size6_t test_(exclusive_or<A, B> const&); - template <typename S> - static size7_t test_(optional<S> const&); - template <typename S> - static size8_t test_(kleene_star<S> const&); - template <typename S> - static size9_t test_(positive<S> const&); - - static size10_t test_(...); - - BOOST_STATIC_CONSTANT(bool, - is_alternative = (sizeof(size1_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_sequence = (sizeof(size2_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_sequential_or = (sizeof(size3_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_intersection = (sizeof(size4_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_difference = (sizeof(size5_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_exclusive_or = (sizeof(size6_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_optional = (sizeof(size7_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_kleene_star = (sizeof(size8_t) == sizeof(test_(t()))) ); - BOOST_STATIC_CONSTANT(bool, - is_positive = (sizeof(size9_t) == sizeof(test_(t()))) ); - }; - -#else /////////////////////////////////////////////////////////////////////////// struct parser_type_traits_base { @@ -180,7 +106,6 @@ namespace impl BOOST_STATIC_CONSTANT(bool, is_positive = true); }; -#endif // defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) } // namespace impl /////////////////////////////////////////////////////////////////////////////// |