SET, CLR, ISSET in types.h for _KERNEL builds

[M. Warner Losh]

In message: <1151490061.3525.9.camel at berloga.shadowland>
            Alex Lyashkov <shadow at psoft.net> writes:
: В Втр, 27.06.2006, в 22:58, M. Warner Losh пишет:
: > NetBSD recently added SET, CLR, ISSET to sys/types.h (only if _KERNEL
: > is defined).  I'd like to do something similar in FreeBSD.  I see no
: > reason to needless deviate from NetBSD here.  One could make an
: > argument for lots of different files, but at the end of the day does
: > it really matter enough to justify having it be different than NetBSD?
: > 
: > Here's my proposed diff, inline, for your consideration:
: > 
: 
: > 
: > NOTE: That /* !_KERNEL */ should have the '!' removed, but I didn't
: > want to confuse things by doing that too.
: > 
: > Comments?
: > 
: > Warner
: > _______________________________________________
: Who not create abstract framework for work with bitmask more then 64bits
: size? 
: similar this:
: 
: #define_bitmask(name,size)	char name[(size/8)+1];
: #define set_bit(bimask,no)	{ bitmask[(no/8)] |= 1<<(no%8); }
: #define clr_bit(bitmask,no)		{ bitmask[(no/8)] &= ~(1<<(no%8)); }
: static inline isset_bit(char *bitmask, no) {
: 	return bitmask[(no/8)] & 1<<(no%8);
: }

This isn't about 'frameworks' but rather a simple set of macros to aid
in the porting of code from other systems.

Warner