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Add MAP macro

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This commit is contained in:
Scott Lahteine 2020-05-12 01:41:10 -05:00
parent ab19a27f63
commit d4aa197744
1 changed files with 11 additions and 0 deletions
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11
Marlin/src/core/macros.h
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@ -480,3 +480,14 @@
#define RREPEAT(N,OP) RREPEAT_S(0,N,OP) #define RREPEAT(N,OP) RREPEAT_S(0,N,OP)
#define RREPEAT2_S(S,N,OP,V...) EVAL1024(_RREPEAT2(S,SUB##S(N),OP,V)) #define RREPEAT2_S(S,N,OP,V...) EVAL1024(_RREPEAT2(S,SUB##S(N),OP,V))
#define RREPEAT2(N,OP,V...) RREPEAT2_S(0,N,OP,V) #define RREPEAT2(N,OP,V...) RREPEAT2_S(0,N,OP,V)
// See https://github.com/swansontec/map-macro
#define MAP_OUT
#define MAP_END(...)
#define MAP_GET_END() 0, MAP_END
#define MAP_NEXT0(test, next, ...) next MAP_OUT
#define MAP_NEXT1(test, next) MAP_NEXT0 (test, next, 0)
#define MAP_NEXT(test, next) MAP_NEXT1 (MAP_GET_END test, next)
#define MAP0(f, x, peek, ...) f(x) MAP_NEXT (peek, MAP1) (f, peek, __VA_ARGS__)
#define MAP1(f, x, peek, ...) f(x) MAP_NEXT (peek, MAP0) (f, peek, __VA_ARGS__)
#define MAP(f, ...) EVAL512 (MAP1 (f, __VA_ARGS__, (), 0))