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Diffstat (limited to '3rdParty/Boost/src/boost/local_function/detail/preprocessor/void_list.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/local_function/detail/preprocessor/void_list.hpp | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/local_function/detail/preprocessor/void_list.hpp b/3rdParty/Boost/src/boost/local_function/detail/preprocessor/void_list.hpp new file mode 100644 index 0000000..2a302c6 --- /dev/null +++ b/3rdParty/Boost/src/boost/local_function/detail/preprocessor/void_list.hpp @@ -0,0 +1,120 @@ + +// Copyright (C) 2009-2012 Lorenzo Caminiti +// Distributed under the Boost Software License, Version 1.0 +// (see accompanying file LICENSE_1_0.txt or a copy at +// http://www.boost.org/LICENSE_1_0.txt) +// Home at http://www.boost.org/libs/local_function + +#ifndef BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_HPP_ +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_HPP_ + +#include <boost/local_function/detail/preprocessor/keyword/void.hpp> +#include <boost/config.hpp> +#include <boost/preprocessor/cat.hpp> +#include <boost/preprocessor/control/iif.hpp> +#include <boost/preprocessor/comparison/equal.hpp> +#include <boost/preprocessor/tuple/to_list.hpp> +#include <boost/preprocessor/seq/size.hpp> +#include <boost/preprocessor/seq/to_tuple.hpp> + +// PRIVATE // + +// Argument: (token1)... +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_FROM_SEQ_(unused, seq) \ + BOOST_PP_TUPLE_TO_LIST(BOOST_PP_SEQ_SIZE(seq), BOOST_PP_SEQ_TO_TUPLE(seq)) + +// Token: void | token1 +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_HANDLE_VOID_( \ + is_void_macro, token) \ + BOOST_PP_IIF(is_void_macro(token), \ + BOOST_PP_NIL \ + , \ + (token, BOOST_PP_NIL) \ + ) + +// Token: (a)(b)... | empty | void | token +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_HANDLE_SEQ_( \ + is_void_macro, token) \ + BOOST_PP_IIF(BOOST_PP_IS_UNARY(token), /* unary paren (a)... */ \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_FROM_SEQ_ \ + , \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_HANDLE_VOID_ \ + )(is_void_macro, token) + +#ifdef BOOST_NO_VARIADIC_MACROS + +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_(is_void_macro, seq) \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_HANDLE_SEQ_(is_void_macro, seq) + +#else // VARIADICS + +// FUTURE: Replace this with BOOST_PP_VARIADIC_SIZE when and if +// BOOST_PP_VARIAIDCS detection will match !BOOST_NO_VARIADIC_MACROS (for now +// Boost.Preprocessor and Boost.Config disagree on detecting compiler variadic +// support while this VARIADIC_SIZE works on compilers not detected by PP). +#if BOOST_MSVC +# define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_VARIADIC_SIZE_(...) \ + BOOST_PP_CAT(BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_VARIADIC_SIZE_I_(__VA_ARGS__, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1,),) +#else // MSVC +# define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_VARIADIC_SIZE_(...) \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_VARIADIC_SIZE_I_(__VA_ARGS__, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1,) +#endif // MSVC +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_VARIADIC_SIZE_I_(e0, e1, e2, e3, e4, e5, e6, e7, e8, e9, e10, e11, e12, e13, e14, e15, e16, e17, e18, e19, e20, e21, e22, e23, e24, e25, e26, e27, e28, e29, e30, e31, e32, e33, e34, e35, e36, e37, e38, e39, e40, e41, e42, e43, e44, e45, e46, e47, e48, e49, e50, e51, e52, e53, e54, e55, e56, e57, e58, e59, e60, e61, e62, e63, size, ...) size + +// Argument: token1, ... +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_FROM_VARIADIC_(unused, ...) \ + BOOST_PP_TUPLE_TO_LIST( \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_VARIADIC_SIZE_( \ + __VA_ARGS__), (__VA_ARGS__)) + +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_(is_void_macro, ...) \ + BOOST_PP_IIF(BOOST_PP_EQUAL( \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_VARIADIC_SIZE_( \ + __VA_ARGS__), 1), \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_HANDLE_SEQ_ \ + , \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_FROM_VARIADIC_ \ + )(is_void_macro, __VA_ARGS__) + +#endif // VARIADICS + +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_NEVER_(tokens) \ + 0 /* void check always returns false */ + +// PUBLIC // + +// NOTE: Empty list must always be represented is void (which is also a way to +// specify no function parameter) and it can never be empty because (1) +// IS_EMPTY(&var) fails (because of the leading non alphanumeric symbol) and +// (2) some compilers (MSVC) fail to correctly pass empty macro parameters +// even if they support variadic macros. Therefore, always using void to +// represent is more portable. + +#ifdef BOOST_NO_VARIADIC_MACROS + +// Expand `void | (a)(b)...` to pp-list `NIL | (a, (b, NIL))`. +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST(sign) \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_( \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_IS_VOID_BACK, sign) + +// Expand `(a)(b)...` to pp-list `(a, (b, NIL))`. +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_NON_VOID_LIST(seq) \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_( \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_NEVER_, seq) + +#else // VARIADICS + +// Expand `void | (a)(b)... | a, b, ...` to pp-list `NIL | (a, (b, NIL))`. +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST(...) \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_( \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_IS_VOID_BACK, __VA_ARGS__) + +// Expand `(a)(b)... | a, b, ...` to pp-list `(a, (b, NIL))`. +#define BOOST_LOCAL_FUNCTION_DETAIL_PP_NON_VOID_LIST(...) \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_( \ + BOOST_LOCAL_FUNCTION_DETAIL_PP_VOID_LIST_NEVER_, __VA_ARGS__) + +#endif // VARIADICS + +#endif // #include guard + |