fold_left.hpp

C++的一个好库。。。现在很流行

# /* **************************************************************************
#  *                                                                          *
#  *     (C) Copyright Paul Mensonides 2002.
#  *     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 for most recent version. */
#
# ifndef BOOST_PREPROCESSOR_SEQ_FOLD_LEFT_HPP
# define BOOST_PREPROCESSOR_SEQ_FOLD_LEFT_HPP
#
# include <boost/preprocessor/arithmetic/dec.hpp>
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/control/if.hpp>
# include <boost/preprocessor/debug/error.hpp>
# include <boost/preprocessor/detail/auto_rec.hpp>
# include <boost/preprocessor/seq/seq.hpp>
# include <boost/preprocessor/seq/size.hpp>
#
# /* BOOST_PP_SEQ_FOLD_LEFT */
#
# if 0
#    define BOOST_PP_SEQ_FOLD_LEFT(op, state, seq) ...
# endif
#
# define BOOST_PP_SEQ_FOLD_LEFT BOOST_PP_CAT(BOOST_PP_SEQ_FOLD_LEFT_, BOOST_PP_AUTO_REC(BOOST_PP_SEQ_FOLD_LEFT_P, 256))
# define BOOST_PP_SEQ_FOLD_LEFT_P(n) BOOST_PP_CAT(BOOST_PP_SEQ_FOLD_LEFT_CHECK_, BOOST_PP_SEQ_FOLD_LEFT_I_ ## n(BOOST_PP_SEQ_FOLD_LEFT_O, BOOST_PP_NIL, (nil), 1))
# define BOOST_PP_SEQ_FOLD_LEFT_O(s, st, _) st
#
# define BOOST_PP_SEQ_FOLD_LEFT_257(op, st, ss) BOOST_PP_ERROR(0x0005)
# define BOOST_PP_SEQ_FOLD_LEFT_I_257(op, st, ss, sz) BOOST_PP_ERROR(0x0005)
#
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_NIL 1
#
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_1(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_2(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_3(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_4(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_5(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_6(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_7(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_8(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_9(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_10(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_11(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_12(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_13(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_14(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_15(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_16(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_17(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_18(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_19(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_20(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_21(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_22(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_23(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_24(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_25(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_26(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_27(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_28(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_29(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_30(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_31(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_32(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_33(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_34(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_35(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_36(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_37(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_38(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_39(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_40(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_41(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_42(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_43(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_44(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_45(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_46(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_47(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_48(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_49(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_50(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_51(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_52(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_53(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_54(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_55(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_56(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_57(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_58(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_59(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_60(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_61(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_62(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_63(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_64(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_65(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_66(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_67(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_68(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_69(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_70(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_71(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_72(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_73(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_74(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_75(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_76(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_77(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_78(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_79(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_80(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_81(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_82(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_83(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_84(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_85(op, st, ss, sz) 0
# define BOOST_PP_SEQ_FOLD_LEFT_CHECK_BOOST_PP_SEQ_FOLD_LEFT_I_86(op, st, ss, sz) 0