util_internal.h File Reference

Misc utilities. More...

#include "util_loops.h"

Go to the source code of this file.

Macros
#define	UTIL_CAT(a, ...)   UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)
#define	UTIL_PRIMITIVE_CAT(a, ...)   a##__VA_ARGS__
#define	UTIL_CHECK_N(x, n, ...)   n
#define	UTIL_CHECK(...)   UTIL_CHECK_N(__VA_ARGS__, 0,)
#define	UTIL_NOT(x)   UTIL_CHECK(UTIL_PRIMITIVE_CAT(UTIL_NOT_, x))
#define	UTIL_NOT_0   ~, 1,
#define	UTIL_COMPL(b)   UTIL_PRIMITIVE_CAT(UTIL_COMPL_, b)
#define	UTIL_COMPL_0   1
#define	UTIL_COMPL_1   0
#define	UTIL_BOOL(x)   UTIL_COMPL(UTIL_NOT(x))
#define	UTIL_EVAL(...)   __VA_ARGS__
#define	UTIL_EXPAND(...)   __VA_ARGS__
#define	UTIL_REPEAT(...)   UTIL_LISTIFY(__VA_ARGS__)
#define	NUM_VA_ARGS_LESS_1_IMPL( _ignored, _0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, N, ...)   N
#define	MACRO_MAP_CAT_(...)
#define	MACRO_MAP_CAT_N_(N, ...)   UTIL_CAT(MACRO_MC_, N)(__VA_ARGS__,)
#define	MACRO_MC_0(...)
#define	MACRO_MC_1(m, a, ...)   m(a)
#define	MACRO_MC_2(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_1(m, __VA_ARGS__,))
#define	MACRO_MC_3(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_2(m, __VA_ARGS__,))
#define	MACRO_MC_4(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_3(m, __VA_ARGS__,))
#define	MACRO_MC_5(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_4(m, __VA_ARGS__,))
#define	MACRO_MC_6(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_5(m, __VA_ARGS__,))
#define	MACRO_MC_7(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_6(m, __VA_ARGS__,))
#define	MACRO_MC_8(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_7(m, __VA_ARGS__,))
#define	MACRO_MC_9(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_8(m, __VA_ARGS__,))
#define	MACRO_MC_10(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_9(m, __VA_ARGS__,))
#define	MACRO_MC_11(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_10(m, __VA_ARGS__,))
#define	MACRO_MC_12(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_11(m, __VA_ARGS__,))
#define	MACRO_MC_13(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_12(m, __VA_ARGS__,))
#define	MACRO_MC_14(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_13(m, __VA_ARGS__,))
#define	MACRO_MC_15(m, a, ...)   UTIL_CAT(m(a), MACRO_MC_14(m, __VA_ARGS__,))

Detailed Description

Misc utilities.

Repetitive or obscure helper macros needed by sys/util.h.

Macro Definition Documentation

MACRO_MAP_CAT_

#define MACRO_MAP_CAT_

(

...

)

Value:

        /* To make sure it works also for 2 arguments in total */       \
        MACRO_MAP_CAT_N(NUM_VA_ARGS_LESS_1(__VA_ARGS__), __VA_ARGS__)

MACRO_MAP_CAT_N_

#define MACRO_MAP_CAT_N_	(		N,
			...
	)		UTIL_CAT(MACRO_MC_, N)(__VA_ARGS__,)

MACRO_MC_0

#define MACRO_MC_0

(

...

)

MACRO_MC_1

#define MACRO_MC_1	(		m,
			a,
			...
	)		m(a)

MACRO_MC_10

#define MACRO_MC_10	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_9(m, __VA_ARGS__,))

MACRO_MC_11

#define MACRO_MC_11	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_10(m, __VA_ARGS__,))

MACRO_MC_12

#define MACRO_MC_12	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_11(m, __VA_ARGS__,))

MACRO_MC_13

#define MACRO_MC_13	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_12(m, __VA_ARGS__,))

MACRO_MC_14

#define MACRO_MC_14	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_13(m, __VA_ARGS__,))

MACRO_MC_15

#define MACRO_MC_15	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_14(m, __VA_ARGS__,))

MACRO_MC_2

#define MACRO_MC_2	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_1(m, __VA_ARGS__,))

MACRO_MC_3

#define MACRO_MC_3	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_2(m, __VA_ARGS__,))

MACRO_MC_4

#define MACRO_MC_4	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_3(m, __VA_ARGS__,))

MACRO_MC_5

#define MACRO_MC_5	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_4(m, __VA_ARGS__,))

MACRO_MC_6

#define MACRO_MC_6	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_5(m, __VA_ARGS__,))

MACRO_MC_7

#define MACRO_MC_7	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_6(m, __VA_ARGS__,))

MACRO_MC_8

#define MACRO_MC_8	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_7(m, __VA_ARGS__,))

MACRO_MC_9

#define MACRO_MC_9	(		m,
			a,
			...
	)		UTIL_CAT(m(a), MACRO_MC_8(m, __VA_ARGS__,))

NUM_VA_ARGS_LESS_1_IMPL

#define NUM_VA_ARGS_LESS_1_IMPL	(		_ignored,
			_0,
			_1,
			_2,
			_3,
			_4,
			_5,
			_6,
			_7,
			_8,
			_9,
			_10,
			_11,
			_12,
			_13,
			_14,
			_15,
			_16,
			_17,
			_18,
			_19,
			_20,
			_21,
			_22,
			_23,
			_24,
			_25,
			_26,
			_27,
			_28,
			_29,
			_30,
			_31,
			_32,
			_33,
			_34,
			_35,
			_36,
			_37,
			_38,
			_39,
			_40,
			_41,
			_42,
			_43,
			_44,
			_45,
			_46,
			_47,
			_48,
			_49,
			_50,
			_51,
			_52,
			_53,
			_54,
			_55,
			_56,
			_57,
			_58,
			_59,
			_60,
			_61,
			_62,
			N,
			...
	)		N

UTIL_BOOL

#define UTIL_BOOL

(

x

)

UTIL_COMPL(UTIL_NOT(x))

UTIL_CAT

#define UTIL_CAT	(		a,
			...
	)		UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)

UTIL_CHECK

#define UTIL_CHECK

(

...

)

UTIL_CHECK_N(__VA_ARGS__, 0,)

UTIL_CHECK_N

#define UTIL_CHECK_N	(		x,
			n,
			...
	)		n

UTIL_COMPL

#define UTIL_COMPL

(

b

)

UTIL_PRIMITIVE_CAT(UTIL_COMPL_, b)

UTIL_COMPL_0

#define UTIL_COMPL_0   1

UTIL_COMPL_1

#define UTIL_COMPL_1   0

UTIL_EVAL

#define UTIL_EVAL

(

...

)

__VA_ARGS__

UTIL_EXPAND

#define UTIL_EXPAND

(

...

)

__VA_ARGS__

UTIL_NOT

#define UTIL_NOT

(

x

)

UTIL_CHECK(UTIL_PRIMITIVE_CAT(UTIL_NOT_, x))

UTIL_NOT_0

#define UTIL_NOT_0   ~, 1,

UTIL_PRIMITIVE_CAT

#define UTIL_PRIMITIVE_CAT	(		a,
			...
	)		a##__VA_ARGS__

UTIL_REPEAT

#define UTIL_REPEAT

(

...

)

UTIL_LISTIFY(__VA_ARGS__)