Make CHIN() Boolean-valued and use this to turn an expression with a
quintuple negation into one with a simple negation.

From miod, ok millert

Turn macros into inline functions so that there is no need to document in
comments that they will evaluate their arguments multiple times.

From miod, ok millert

Remove unused categories in re_guts; they are written to but never read.
From miod@, OK tb@

cclasses[] multis field is always an empty string. Remove it and code
dealing with it. This code was incomplete anyway.

from miod, ok millert

silence some warnings by adding prototypes, casts, and headers as
appropriate. in regex, stop using the struct hack for a fixed size array

remove useless comments, once used for header file generation and delete
parameter names from prototypes. ok millert@

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

Be specific about using unsigned values

- cast usages of *printf() to void since we don't check return val
- move an assert to be *before* a strcpy() where it can do some good.
- integrate NetBSD fixes for 64-bit machines (NetBSD PR #3450,

- cast usages of *printf() to void since we don't check return val
- move an assert to be *before* a strcpy() where it can do some good.
- integrate NetBSD fixes for 64-bit machines (NetBSD PR #3450, Ross Harvey)
- add lite2 tags

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long -> int to fix 64bit issues. This breaks 16bit machines but since we don't have any 16bit ports...) The alternative is to use int32_t's but then this code will break when/if int > 32bits which i

long -> int to fix 64bit issues. This breaks 16bit machines but since we don't have any 16bit ports...) The alternative is to use int32_t's but then this code will break when/if int > 32bits which is not so unlikely. Fixes NetBSD PR #3450 from Ross Harvey (but in a different way)

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Fix RCS ids
Make sure everything uses {SYS,}LIBC_SCCS properly

initial import of NetBSD tree