util: add trait/macro for is_constexpr_constructible

This commit is contained in:
Michael Scire 2021-10-21 15:21:15 -07:00 committed by SciresM
parent 7c1347e692
commit d8a2b47b0a
2 changed files with 283 additions and 0 deletions

View file

@ -80,3 +80,26 @@ namespace ams::impl {
#define AMS_UNUSED(...) ::ams::impl::UnusedImpl(__VA_ARGS__)
#define AMS_INFINITE_LOOP() do { __asm__ __volatile__("" ::: "memory"); } while (1)
#define AMS__NARG__(...) AMS__NARG_I_(__VA_ARGS__,AMS__RSEQ_N())
#define AMS__NARG_I_(...) AMS__ARG_N(__VA_ARGS__)
#define AMS__ARG_N( \
_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,_63,N,...) N
#define AMS__RSEQ_N() \
63,62,61,60, \
59,58,57,56,55,54,53,52,51,50, \
49,48,47,46,45,44,43,42,41,40, \
39,38,37,36,35,34,33,32,31,30, \
29,28,27,26,25,24,23,22,21,20, \
19,18,17,16,15,14,13,12,11,10, \
9,8,7,6,5,4,3,2,1,0
#define AMS__VMACRO_(name, n) name##_##n
#define AMS__VMACRO(name, n) AMS__VMACRO_(name, n)
#define AMS_VMACRO(func, ...) AMS__VMACRO(func, AMS__NARG__(__VA_ARGS__)) (__VA_ARGS__)