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Added more recursive macros

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Signed-off-by: Robear Selwans <robear.selwans@outlook.com>
This commit is contained in:
Robear Selwans
2022-05-24 18:32:58 +02:00
parent e7a184c538
commit b29b2fc46c
1 changed files with 31 additions and 0 deletions
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31
ev_macros.h
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@@ -11,6 +11,7 @@
#define __EV_MACRO_IF_0_ELSE(...) __VA_ARGS__
#define __EV_MACRO_SECOND(a,b,...) b
#define __EV_MACRO_SECOND_INDIRECT() __EV_MACRO_SECOND
#define __EV_MACRO_IS_PROBE(...) __EV_MACRO_SECOND(__VA_ARGS__,0)
#define __EV_MACRO_PROBE() ~,1
@@ -108,6 +109,11 @@
#define EV_CAT(a, ...) EV_CAT_IMPL(a, __VA_ARGS__)
#define EV_CAT_IMPL(a, ...) a##__VA_ARGS__
/*!
* \brief Macro to concatenate multiple tokens together
*/
#define EV_CATN(...) EV_REDUCE(EV_CAT, __VA_ARGS__)
/*!
* \brief Macro to wrap tokens in double quotations. (")
*/
@@ -187,6 +193,31 @@
OP(UDATA, a) EV_INDIRECT_OP_ELSE_NOP(__EV_INTERNAL_FOREACH_UDATA_IMPL_INDIRECT, __VA_ARGS__)(OP, UDATA, __VA_ARGS__)
#define __EV_INTERNAL_FOREACH_UDATA_IMPL_INDIRECT() __EV_INTERNAL_FOREACH_UDATA_IMPL
#define EV_JOIN(...) \
EV_JOIN_W_DELIM((,),__VA_ARGS__)
#define EV_JOIN_W_DELIM(delim, ...) \
EV_VA_OPT(__VA_ARGS__)(EV_EVAL(__EV_INTERNAL_JOIN_W_DELIM_IMPL(delim, __VA_ARGS__)))
#define __EV_INTERNAL_JOIN_W_DELIM_IMPL(delim, a, ...) \
a EV_INDIRECT_OP_ELSE_NOP(EV_EXPAND delim __EV_INTERNAL_JOIN_W_DELIM_IMPL_INDIRECT, __VA_ARGS__)(delim, __VA_ARGS__)
#define __EV_INTERNAL_JOIN_W_DELIM_IMPL_INDIRECT() __EV_INTERNAL_JOIN_W_DELIM_IMPL
#define DEFAULT_ZIP_OP(a, b) (a, b)
#define EV_ZIP(list1, list2) \
EV_ZIP_W_OP(DEFAULT_ZIP_OP, list1, list2)
#define EV_ZIP_W_OP(OP, list1, list2) \
EV_VA_OPT(EV_EXPAND list1)(EV_EVAL(__EV_INTERNAL_ZIP_W_OP_IMPL(OP, list1, list2)))
#define __EV_INTERNAL_ZIP_W_OP_IMPL(OP, list1, list2) \
OP(EV_HEAD list1, EV_HEAD list2) EV_INDIRECT_OP_ELSE_NOP(__EV_INTERNAL_ZIP_W_OP_IMPL_INDIRECT, EV_TAIL list1)(OP, (EV_TAIL list1), (EV_TAIL list2))
#define __EV_INTERNAL_ZIP_W_OP_IMPL_INDIRECT() , __EV_INTERNAL_ZIP_W_OP_IMPL
#define EV_REDUCE(OP, ...) \
EV_VA_OPT(__VA_ARGS__)(EV_EVAL(EV_INDIRECT_OP_ELSE_NOP(__EV_INTERNAL_REDUCE_IMPL_INDIRECT, __VA_ARGS__)(OP, EV_HEAD(__VA_ARGS__), EV_TAIL(__VA_ARGS__))))
#define __EV_INTERNAL_REDUCE_IMPL(OP, last, ...) \
EV_DEFER(EV_VA_OPT_ELSE(__VA_ARGS__)(__EV_INTERNAL_REDUCE_IMPL_INDIRECT)(__EV_MACRO_SECOND_INDIRECT))()(OP, EV_VA_OPT_ELSE(__VA_ARGS__)(OP(last, EV_HEAD(__VA_ARGS__)))(last) EV_VA_OPT(__VA_ARGS__)(,EV_TAIL(__VA_ARGS__)))
#define __EV_INTERNAL_REDUCE_IMPL_INDIRECT() __EV_INTERNAL_REDUCE_IMPL
/*!
* \brief Macro to get a the hex value of a 4-number as a character
*/