Commit Graph

19 Commits

Author SHA1 Message Date
christos
389390f57e pacify lint. 2008-09-24 16:58:53 +00:00
christos
0588e62651 fix newer gcc warning. 2008-09-24 16:24:30 +00:00
christos
194e105784 From Ilya Dogolazky ilya.dogolazky at teleca dot fi:
The new algorithm does not use any array initialisation.
Instead of that the only integer variable "index" is initialized.
It is not using any bitwise operations and shifts as well.

The well-known algorithm (an efficient representation for sparse sets) is
mentioned as exercise 2.12 in "The Design and Analysis of Computer Algorithms"
by Alfred Aho, John Hopcroft and Jeffrey Ullman. It is described here
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.30.7319
and here
http://research.swtch.com/2008/03/using-uninitialized-memory-for-fun-and.html
2008-09-24 14:36:02 +00:00
christos
8fbaff1005 fix lint issues. 2008-02-23 15:18:04 +00:00
joerg
758ec1af13 Also cast before anding the characters. 2008-02-22 19:25:59 +00:00
joerg
966f3cc69d Add some explicit casts to stop GCC complains about signed char shifts. 2008-02-22 14:40:15 +00:00
joerg
2ca83a6a31 Replace O(nm) versions of strspn, strcspn and strpbrk with O(n+m)
implementations based on the suggestions I made for DragonFly's libc
ages ago. For charset with more than one entry and iterating over the
first two characters of s, this is consistently faster on amd64.
2008-02-22 13:32:19 +00:00
christos
03256c6e55 WARNS=4 2005-11-29 03:11:58 +00:00
agc
eb7c1594f1 Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22280, verified by myself.
2003-08-07 16:42:00 +00:00
lukem
d896261208 back out the #ifdef _DIAGNOSTIC argument checks; too many people complained.
_DIAGASSERT() is still retained.
1999-09-20 04:38:56 +00:00
lukem
b48252f365 * use _DIAGASSERT() to check pointer arguments against NULL and file
descriptors against -1 (as appropriate).
* add actual checks which to detect stuff that would trigger_DIAGASSERT(),
  and attempt to return a sane error condition.
* knf some code
* remove some `register' decls.

the first two items result in the addition of code similar to the
following in various functions:

		_DIAGASSERT(path != NULL)
	#ifdef _DIAGNOSTIC
		if (path == NULL) {
			errno = EFAULT;
			return (-1);
		}
	#endif
1999-09-16 11:44:54 +00:00
christos
8cc3f31582 delint 1998-11-15 17:21:49 +00:00
perry
741740203c remove obsolete register declarations 1998-02-03 18:49:08 +00:00
perry
5f8a6c06f3 update to lite-2 1998-01-30 23:37:40 +00:00
christos
3d2267c88c Fix RCSID's
Use "extern.h" where appropriate.
1997-07-13 20:24:09 +00:00
jtc
752ff8fb6c don't include <sys/cdefs.h>, it's a 'private' header 1995-06-15 00:07:11 +00:00
jtc
9c20f740a3 Declare rcsid strings so they are stored in text segment. 1993-08-26 00:43:03 +00:00
mycroft
e9d867ef50 Add RCS identifiers. 1993-08-01 17:54:45 +00:00
cgd
61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00