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[Backport branch/3.4.x] [libcu++] harden the preprocessor machinery to avoid user defined tokens #9425

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[Backport branch/3.4.x] [libcu++] harden the preprocessor machinery to avoid user defined tokens #9425

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207 changes: 133 additions & 74 deletions libcudacxx/include/cuda/std/__cccl/preprocessor.h
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Original file line number Diff line number Diff line change
Expand Up @@ -34,9 +34,9 @@ CCCL_IGNORE_MSVC_TRADITIONAL_PREPROCESSOR_WARNING to suppress this warning.
#define _CCCL_TO_STRING2(_STR) #_STR
#define _CCCL_TO_STRING(_STR) _CCCL_TO_STRING2(_STR)

#define _CCCL_PP_FIRST(first, ...) first
#define _CCCL_PP_SECOND(_, second, ...) second
#define _CCCL_PP_THIRD(_1, _2, third) third
#define _CCCL_PP_FIRST(_FIRST, ...) _FIRST
#define _CCCL_PP_SECOND(_, _SECOND, ...) _SECOND
#define _CCCL_PP_THIRD(_1, _2, _THIRD) _THIRD

#define _CCCL_PP_EXPAND(...) __VA_ARGS__
#define _CCCL_PP_EAT(...)
Expand Down Expand Up @@ -84,13 +84,13 @@ CCCL_IGNORE_MSVC_TRADITIONAL_PREPROCESSOR_WARNING to suppress this warning.
#define _CCCL_PP_RBRACE() }
#define _CCCL_PP_COMMA_IIF(_Xp) _CCCL_PP_IIF(_Xp)(_CCCL_PP_COMMA, _CCCL_PP_EMPTY)()

#define _CCCL_PP_CASE(ARG) _CCCL_PP_PROBE_N(~, ARG)
#define _CCCL_PP_SWITCH(PREFIX, ...) \
_CCCL_PP_CAT(PREFIX##_CASE_, _CCCP_PP_CASE_LABEL_(PREFIX, __VA_ARGS__))(__VA_ARGS__)
#define _CCCL_PP_SWITCH2(PREFIX, ...) \
_CCCL_PP_CAT(PREFIX##_CASE_, _CCCP_PP_CASE_LABEL_(PREFIX, __VA_ARGS__))(__VA_ARGS__)
#define _CCCP_PP_CASE_LABEL_(PREFIX, ...) \
_CCCL_PP_EVAL(_CCCL_PP_CHECK, _CCCL_PP_CAT(PREFIX##_SWITCH_, _CCCL_PP_FIRST(__VA_ARGS__)), DEFAULT, )
#define _CCCL_PP_CASE(_ARG) _CCCL_PP_PROBE_N(~, _ARG)
#define _CCCL_PP_SWITCH(_PREFIX, ...) \
_CCCL_PP_CAT(_PREFIX##_CASE_, _CCCP_PP_CASE_LABEL_(_PREFIX, __VA_ARGS__))(__VA_ARGS__)
#define _CCCL_PP_SWITCH2(_PREFIX, ...) \
_CCCL_PP_CAT(_PREFIX##_CASE_, _CCCP_PP_CASE_LABEL_(_PREFIX, __VA_ARGS__))(__VA_ARGS__)
#define _CCCP_PP_CASE_LABEL_(_PREFIX, ...) \
_CCCL_PP_EVAL(_CCCL_PP_CHECK, _CCCL_PP_CAT(_PREFIX##_SWITCH_, _CCCL_PP_FIRST(__VA_ARGS__)), _CCCL_SWITCH_DEFAULT, )

#define _CCCL_PP_FOR_EACH(_Mp, ...) _CCCL_PP_FOR_EACH_N(_CCCL_PP_COUNT(__VA_ARGS__), _Mp, __VA_ARGS__)
#define _CCCL_PP_FOR_EACH_N(_Np, _Mp, ...) _CCCL_PP_CAT2(_CCCL_PP_FOR_EACH_, _Np)(_Mp, __VA_ARGS__)
Expand Down Expand Up @@ -1236,72 +1236,131 @@ CCCL_IGNORE_MSVC_TRADITIONAL_PREPROCESSOR_WARNING to suppress this warning.
#define _CCCL_PP_REPEAT_REVERSE255(_M, _S, _F) _CCCL_PP_REPEAT_REVERSE254(_M, _F(_S), _F) _M(_S)
#define _CCCL_PP_REPEAT_REVERSE256(_M, _S, _F) _CCCL_PP_REPEAT_REVERSE255(_M, _F(_S), _F) _M(_S)

#define _CCCL_PP_SPLICE_WITH_IMPL1(SEP, P1) P1
#define _CCCL_PP_SPLICE_WITH_IMPL2(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL1(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL3(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL2(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL4(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL3(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL5(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL4(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL6(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL5(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL7(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL6(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL8(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL7(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL9(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL8(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL10(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL9(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL11(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL10(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL12(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL11(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL13(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL12(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL14(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL13(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL15(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL14(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL16(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL15(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL17(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL16(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL18(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL17(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL19(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL18(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL20(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL19(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL21(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL20(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL22(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL21(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL23(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL22(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL24(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL23(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL25(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL24(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL26(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL25(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL27(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL26(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL28(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL27(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL29(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL28(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL30(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL29(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL31(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL30(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL32(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL31(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL33(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL32(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL34(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL33(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL35(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL34(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL36(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL35(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL37(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL36(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL38(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL37(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL39(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL38(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL40(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL39(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL41(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL40(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL42(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL41(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL43(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL42(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL44(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL43(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL45(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL44(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL46(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL45(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL47(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL46(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL48(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL47(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL49(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL48(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL50(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL49(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL51(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL50(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL52(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL51(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL53(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL52(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL54(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL53(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL55(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL54(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL56(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL55(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL57(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL56(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL58(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL57(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL59(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL58(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL60(SEP, P1, ...) _CCCL_PP_CAT(P1##SEP, _CCCL_PP_SPLICE_WITH_IMPL59(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL1(_SEP, _P1) _P1
#define _CCCL_PP_SPLICE_WITH_IMPL2(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL1(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL3(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL2(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL4(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL3(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL5(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL4(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL6(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL5(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL7(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL6(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL8(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL7(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL9(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL8(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL10(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL9(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL11(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL10(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL12(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL11(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL13(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL12(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL14(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL13(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL15(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL14(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL16(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL15(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL17(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL16(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL18(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL17(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL19(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL18(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL20(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL19(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL21(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL20(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL22(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL21(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL23(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL22(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL24(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL23(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL25(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL24(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL26(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL25(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL27(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL26(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL28(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL27(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL29(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL28(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL30(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL29(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL31(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL30(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL32(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL31(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL33(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL32(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL34(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL33(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL35(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL34(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL36(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL35(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL37(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL36(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL38(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL37(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL39(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL38(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL40(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL39(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL41(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL40(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL42(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL41(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL43(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL42(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL44(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL43(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL45(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL44(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL46(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL45(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL47(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL46(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL48(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL47(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL49(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL48(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL50(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL49(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL51(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL50(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL52(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL51(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL53(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL52(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL54(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL53(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL55(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL54(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL56(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL55(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL57(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL56(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL58(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL57(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL59(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL58(_SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH_IMPL60(_SEP, _P1, ...) \
_CCCL_PP_CAT(_P1##_SEP, _CCCL_PP_SPLICE_WITH_IMPL59(_SEP, __VA_ARGS__))

#define _CCCL_PP_SPLICE_WITH_IMPL_DISPATCH(N) _CCCL_PP_SPLICE_WITH_IMPL##N
#define _CCCL_PP_SPLICE_WITH_IMPL_DISPATCH(_NUM) _CCCL_PP_SPLICE_WITH_IMPL##_NUM

// Splices a pack of arguments into a single token, separated by SEP
// Splices a pack of arguments into a single token, separated by _SEP
// E.g., _CCCL_PP_SPLICE_WITH(_, A, B, C) will evaluate to A_B_C
#define _CCCL_PP_SPLICE_WITH(SEP, ...) \
_CCCL_PP_EXPAND(_CCCL_PP_EVAL(_CCCL_PP_SPLICE_WITH_IMPL_DISPATCH, _CCCL_PP_COUNT(__VA_ARGS__))(SEP, __VA_ARGS__))
#define _CCCL_PP_SPLICE_WITH(_SEP, ...) \
_CCCL_PP_EXPAND(_CCCL_PP_EVAL(_CCCL_PP_SPLICE_WITH_IMPL_DISPATCH, _CCCL_PP_COUNT(__VA_ARGS__))(_SEP, __VA_ARGS__))

#endif // __CCCL_PREPROCESSOR_H
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