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lib/libnetbsd: bring in __type_m{ax,in}* macro family

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These macros are used by some of the NetBSD tests which calculate the
size of types, e.g., `__type_max(time_t)`.

This wraps up the set of macros needed in order to update to the a
netbsd-tests snapshot from this past month.

Obtained from:	https://github.com/netbsd/src (55b4b44)
MFC after:	1 week
This commit is contained in:
Enji Cooper
2026-02-25 18:29:49 -08:00
parent 2abdbe9d79
commit db5344a744
1 changed files with 30 additions and 0 deletions
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lib/libnetbsd/sys/cdefs.h
+30
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@@ -110,4 +110,34 @@
*/
#define __nothing (/*LINTED*/(void)0)
#define __negative_p(x) (!((x) > 0) && ((x) != 0))
#define __type_min_s(t) ((t)((1ULL << (sizeof(t) * __CHAR_BIT__ - 1))))
#define __type_max_s(t) ((t)~((1ULL << (sizeof(t) * __CHAR_BIT__ - 1))))
#define __type_min_u(t) ((t)0ULL)
#define __type_max_u(t) ((t)~0ULL)
#define __type_is_signed(t) (/*LINTED*/__type_min_s(t) + (t)1 < (t)1)
#define __type_min(t) (__type_is_signed(t) ? __type_min_s(t) : __type_min_u(t))
#define __type_max(t) (__type_is_signed(t) ? __type_max_s(t) : __type_max_u(t))
#define __type_fit_u(t, a) \
(/*LINTED*/!__negative_p(a) && \
((__UINTMAX_TYPE__)((a) + __zeroull()) <= \
(__UINTMAX_TYPE__)__type_max_u(t)))
#define __type_fit_s(t, a) \
(/*LINTED*/__negative_p(a) \
? ((__INTMAX_TYPE__)((a) + __zeroll()) >= \
(__INTMAX_TYPE__)__type_min_s(t)) \
: ((__INTMAX_TYPE__)((a) + __zeroll()) >= (__INTMAX_TYPE__)0 && \
((__INTMAX_TYPE__)((a) + __zeroll()) <= \
(__INTMAX_TYPE__)__type_max_s(t))))
/*
* return true if value 'a' fits in type 't'
*/
#define __type_fit(t, a) (__type_is_signed(t) ? \
__type_fit_s(t, a) : __type_fit_u(t, a))
#endif /* _LIBNETBSD_SYS_CDEFS_H_ */