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[BZ #2510, BZ #2830]

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2006-11-12  Andreas Jaeger  <aj@suse.de>

	[BZ #2510]
	* manual/search.texi (Hash Search Function): Clarify.
	(Array Search Function): Clarify.

2006-11-12  Joseph Myers  <joseph@codesourcery.com>

	[BZ #2830]
	* math/atest-exp.c (main): Cast hex value to mp_limb_t before
	shifting.
	* math/atest-exp2.c (read_mpn_hex): Likewise.
	* math/atest-sincos.c (main): Likewise.

	    Ulrich Drepper  <drepper@redhat.com>
This commit is contained in:
Andreas Jaeger 2006-10-12 05:27:24 +00:00
parent 251fc920c7
commit 3f7a21a9c6
2 changed files with 21 additions and 7 deletions
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16
ChangeLog
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@ -1,3 +1,17 @@
2006-11-12 Andreas Jaeger <aj@suse.de>
[BZ #2510]
* manual/search.texi (Hash Search Function): Clarify.
(Array Search Function): Clarify.
2006-11-12 Joseph Myers <joseph@codesourcery.com>
[BZ #2830]
* math/atest-exp.c (main): Cast hex value to mp_limb_t before
shifting.
* math/atest-exp2.c (read_mpn_hex): Likewise.
* math/atest-sincos.c (main): Likewise.
2006-10-11 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/syscalls.list: Add epoll_pwait.
@ -755,7 +769,7 @@
* nis/nis_xdr.c: Avoid some function calls.
2006-08-07 Jakub Jelinek <jakub@redhat.com>
Ulrich Drepper <drepper@redhat.com>
Ulrich Drepper <drepper@redhat.com>
* nis/nis_call.c (rec_dirsearch) [case LOWER_NAME]: Don't take
short cut if only one name component is stripped away.

12
manual/search.texi
View File

@ -82,7 +82,7 @@ starting at @var{base} if it is found. If no matching element is
available @code{NULL} is returned.
The mean runtime of this function is @code{*@var{nmemb}}/2. This
function should only be used elements often get added to or deleted from
function should only be used if elements often get added to or deleted from
the array in which case it might not be useful to sort the array before
searching.
@end deftypefun
@ -247,21 +247,21 @@ Couldn't find Janice.
@node Hash Search Function
@section The @code{hsearch} function.
The functions mentioned so far in this chapter are searching in a sorted
The functions mentioned so far in this chapter are for searching in a sorted
or unsorted array. There are other methods to organize information
which later should be searched. The costs of insert, delete and search
differ. One possible implementation is using hashing tables.
The following functions are declared in the the header file @file{search.h}.
The following functions are declared in the header file @file{search.h}.
@comment search.h
@comment SVID
@deftypefun int hcreate (size_t @var{nel})
The @code{hcreate} function creates a hashing table which can contain at
least @var{nel} elements. There is no possibility to grow this table so
it is necessary to choose the value for @var{nel} wisely. The used
methods to implement this function might make it necessary to make the
it is necessary to choose the value for @var{nel} wisely. The method
used to implement this function might make it necessary to make the
number of elements in the hashing table larger than the expected maximal
number of elements. Hashing tables usually work inefficient if they are
number of elements. Hashing tables usually work inefficiently if they are
filled 80% or more. The constant access time guaranteed by hashing can
only be achieved if few collisions exist. See Knuth's ``The Art of
Computer Programming, Part 3: Searching and Sorting'' for more