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preprocessor: expand MAP macros to 24 arguments

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This commit is contained in:
Danny Robson 2016-06-24 13:15:01 +10:00
parent a87e03de34
commit 791b65a8bb
1 changed files with 35 additions and 1 deletions
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36
preprocessor.hpp
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@ -45,6 +45,7 @@
#define MAP_0_06(F, X, ...) F(X)MAP_0_05(F, __VA_ARGS__)
#define MAP_0_07(F, X, ...) F(X)MAP_0_06(F, __VA_ARGS__)
#define MAP_0_08(F, X, ...) F(X)MAP_0_07(F, __VA_ARGS__)
#define MAP_0_09(F, X, ...) F(X)MAP_0_08(F, __VA_ARGS__)
#define MAP_0_10(F, X, ...) F(X)MAP_0_09(F, __VA_ARGS__)
#define MAP_0_11(F, X, ...) F(X)MAP_0_10(F, __VA_ARGS__)
@ -54,6 +55,16 @@
#define MAP_0_15(F, X, ...) F(X)MAP_0_14(F, __VA_ARGS__)
#define MAP_0_16(F, X, ...) F(X)MAP_0_15(F, __VA_ARGS__)
#define MAP_0_17(F, X, ...) F(X)MAP_0_16(F, __VA_ARGS__)
#define MAP_0_18(F, X, ...) F(X)MAP_0_17(F, __VA_ARGS__)
#define MAP_0_19(F, X, ...) F(X)MAP_0_18(F, __VA_ARGS__)
#define MAP_0_20(F, X, ...) F(X)MAP_0_19(F, __VA_ARGS__)
#define MAP_0_21(F, X, ...) F(X)MAP_0_20(F, __VA_ARGS__)
#define MAP_0_22(F, X, ...) F(X)MAP_0_21(F, __VA_ARGS__)
#define MAP_0_23(F, X, ...) F(X)MAP_0_22(F, __VA_ARGS__)
#define MAP_0_24(F, X, ...) F(X)MAP_0_23(F, __VA_ARGS__)
#define MAP_1_01(F, A, X) F(A, X)
#define MAP_1_02(F, A, X, ...) F(A, X)MAP_1_01(F, A, __VA_ARGS__)
#define MAP_1_03(F, A, X, ...) F(A, X)MAP_1_02(F, A, __VA_ARGS__)
@ -62,6 +73,7 @@
#define MAP_1_06(F, A, X, ...) F(A, X)MAP_1_05(F, A, __VA_ARGS__)
#define MAP_1_07(F, A, X, ...) F(A, X)MAP_1_06(F, A, __VA_ARGS__)
#define MAP_1_08(F, A, X, ...) F(A, X)MAP_1_07(F, A, __VA_ARGS__)
#define MAP_1_09(F, A, X, ...) F(A, X)MAP_1_08(F, A, __VA_ARGS__)
#define MAP_1_10(F, A, X, ...) F(A, X)MAP_1_09(F, A, __VA_ARGS__)
#define MAP_1_11(F, A, X, ...) F(A, X)MAP_1_10(F, A, __VA_ARGS__)
@ -71,6 +83,15 @@
#define MAP_1_15(F, A, X, ...) F(A, X)MAP_1_14(F, A, __VA_ARGS__)
#define MAP_1_16(F, A, X, ...) F(A, X)MAP_1_15(F, A, __VA_ARGS__)
#define MAP_1_17(F, A, X, ...) F(A, X)MAP_1_16(F, A, __VA_ARGS__)
#define MAP_1_18(F, A, X, ...) F(A, X)MAP_1_17(F, A, __VA_ARGS__)
#define MAP_1_19(F, A, X, ...) F(A, X)MAP_1_18(F, A, __VA_ARGS__)
#define MAP_1_20(F, A, X, ...) F(A, X)MAP_1_19(F, A, __VA_ARGS__)
#define MAP_1_21(F, A, X, ...) F(A, X)MAP_1_20(F, A, __VA_ARGS__)
#define MAP_1_22(F, A, X, ...) F(A, X)MAP_1_21(F, A, __VA_ARGS__)
#define MAP_1_23(F, A, X, ...) F(A, X)MAP_1_22(F, A, __VA_ARGS__)
#define MAP_1_24(F, A, X, ...) F(A, X)MAP_1_23(F, A, __VA_ARGS__)
// Uses the sliding pairs dispatch technique: by passing __VA_ARGS__ as the
// first set of variables and appending (reverse orderred) names of the
// corresponding macros, we get the name of the correct arity macro.
@ -80,6 +101,7 @@
#define ARITY_DISPATCH( \
_01,_02,_03,_04,_05,_06,_07,_08, \
_09,_10,_11,_12,_13,_14,_15,_16, \
_17,_18,_19,_20,_21,_22,_23,_24, \
NAME,... \
) NAME
@ -92,6 +114,7 @@
// Just use templates. Really...
#define MAP(FUNC,...) \
ARITY_DISPATCH(__VA_ARGS__, \
MAP_0_24, MAP_0_23, MAP_0_22, MAP_0_21, MAP_0_20, MAP_0_19, MAP_0_18, MAP_0_17, \
MAP_0_16, MAP_0_15, MAP_0_14, MAP_0_13, MAP_0_12, MAP_0_11, MAP_0_10, MAP_0_09, \
MAP_0_08, MAP_0_07, MAP_0_06, MAP_0_05, MAP_0_04, MAP_0_03, MAP_0_02, MAP_0_01, \
STATIC_ASSERT("invalid arity for MAP") \
@ -99,7 +122,8 @@ ARITY_DISPATCH(__VA_ARGS__,
#define MAP1(FUNC,...) \
ARITY_DISPATCH(__VA_ARGS__, \
MAP_1_15, MAP_1_14, MAP_1_13, MAP_1_12, MAP_1_11, MAP_1_10, MAP_1_09, \
MAP_1_23, MAP_1_22, MAP_1_21, MAP_1_20, MAP_1_19, MAP_1_18, MAP_1_17, \
MAP_1_16, MAP_1_15, MAP_1_14, MAP_1_13, MAP_1_12, MAP_1_11, MAP_1_10, MAP_1_09, \
MAP_1_08, MAP_1_07, MAP_1_06, MAP_1_05, MAP_1_04, MAP_1_03, MAP_1_02, MAP_1_01, \
STATIC_ASSERT("invalid arity for MAP1") \
)(FUNC, __VA_ARGS__)
@ -123,10 +147,20 @@ ARITY_DISPATCH(__VA_ARGS__,
#define LITERAL_14 14
#define LITERAL_15 15
#define LITERAL_16 16
#define LITERAL_17 17
#define LITERAL_18 18
#define LITERAL_19 19
#define LITERAL_20 20
#define LITERAL_21 21
#define LITERAL_22 22
#define LITERAL_23 23
#define LITERAL_24 24
#define VA_ARGS_COUNT(...) \
ARITY_DISPATCH(__VA_ARGS__, \
LITERAL_24, LITERAL_23, LITERAL_22, LITERAL_21, \
LITERAL_20, LITERAL_19, LITERAL_18, LITERAL_17, \
LITERAL_16, LITERAL_15, LITERAL_14, LITERAL_13, \
LITERAL_12, LITERAL_11, LITERAL_10, LITERAL_09, \
LITERAL_08, LITERAL_07, LITERAL_06, LITERAL_05, \