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davi 2005-09-26 04:30:54 +00:00
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RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
How to Apply These Terms to Your New Programs
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
"copyright" line and a pointer to where the full notice is found.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This library is distributed in the hope that it will be useful,
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1990
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
That's all there is to it!
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

321
ChangeLog
View File

@ -1,3 +1,324 @@
2005-08-08 18:34 fc_botelho
* INSTALL, examples/Makefile, examples/Makefile.in,
examples/.deps/file_adapter_ex2.Po,
examples/.deps/vector_adapter_ex1.Po, src/brz.c: [no log message]
2005-08-07 22:00 fc_botelho
* src/: brz.c, brz.h, brz_structs.h, cmph.c, cmph.h, main.c:
temporary directory passed by command line
2005-08-07 20:22 fc_botelho
* src/brz.c: stable version of BRZ
2005-08-06 22:09 fc_botelho
* src/bmz.c: no message
2005-08-06 22:02 fc_botelho
* src/bmz.c: no message
2005-08-06 21:45 fc_botelho
* src/brz.c: fastest version of BRZ
2005-08-06 17:20 fc_botelho
* src/: bmz.c, brz.c, main.c: [no log message]
2005-07-29 16:43 fc_botelho
* src/brz.c: BRZ algorithm is almost stable
2005-07-29 15:29 fc_botelho
* src/: bmz.c, brz.c, brz_structs.h, cmph_types.h: BRZ algorithm is
almost stable
2005-07-29 00:09 fc_botelho
* src/: brz.c, djb2_hash.c, djb2_hash.h, fnv_hash.c, fnv_hash.h,
hash.c, hash.h, jenkins_hash.c, jenkins_hash.h, sdbm_hash.c,
sdbm_hash.h: it was fixed more mistakes in BRZ algorithm
2005-07-28 21:00 fc_botelho
* src/: bmz.c, brz.c, cmph.c: fixed some mistakes in BRZ algorithm
2005-07-27 19:13 fc_botelho
* src/brz.c: algorithm BRZ included
2005-07-27 18:16 fc_botelho
* src/: bmz_structs.h, brz.c, brz.h, brz_structs.h: Algorithm BRZ
included
2005-07-27 18:13 fc_botelho
* src/: Makefile.am, bmz.c, chm.c, cmph.c, cmph.h, cmph_types.h:
Algorithm BRZ included
2005-07-25 19:18 fc_botelho
* README, README.t2t, scpscript: it was included an examples
directory
2005-07-25 18:26 fc_botelho
* INSTALL, Makefile.am, configure.ac, examples/Makefile,
examples/Makefile.am, examples/Makefile.in,
examples/file_adapter_ex2.c, examples/keys.txt,
examples/vector_adapter_ex1.c, examples/.deps/file_adapter_ex2.Po,
examples/.deps/vector_adapter_ex1.Po, src/cmph.c, src/cmph.h: it
was included a examples directory
2005-03-03 02:07 davi
* src/: bmz.c, chm.c, chm.h, chm_structs.h, cmph.c, cmph.h,
graph.c, graph.h, jenkins_hash.c, jenkins_hash.h, main.c (xgraph):
New f*cking cool algorithm works. Roughly implemented in chm.c
2005-03-02 20:55 davi
* src/xgraph.c (xgraph): xchmr working nice, but a bit slow
2005-03-02 02:01 davi
* src/xchmr.h: file xchmr.h was initially added on branch xgraph.
2005-03-02 02:01 davi
* src/xchmr_structs.h: file xchmr_structs.h was initially added on
branch xgraph.
2005-03-02 02:01 davi
* src/xchmr.c: file xchmr.c was initially added on branch xgraph.
2005-03-02 02:01 davi
* src/: Makefile.am, cmph.c, cmph_types.h, xchmr.c, xchmr.h,
xchmr_structs.h, xgraph.c, xgraph.h (xgraph): xchmr working fine
except for false positives on cyclic detection.
2005-03-02 00:05 davi
* src/: Makefile.am, xgraph.c, xgraph.h (xgraph): Added external
graph functionality in branch xgraph.
2005-03-02 00:05 davi
* src/xgraph.c: file xgraph.c was initially added on branch xgraph.
2005-03-02 00:05 davi
* src/xgraph.h: file xgraph.h was initially added on branch xgraph.
2005-02-28 19:53 davi
* src/chm.c: Fixed off by one bug in chm.
2005-02-17 16:20 fc_botelho
* LOGO.html, README, README.t2t, gendocs: The way of calling the
function cmph_search was fixed in the file README.t2t
2005-01-31 17:13 fc_botelho
* README.t2t: Heuristic BMZ memory consumption was updated
2005-01-31 17:09 fc_botelho
* BMZ.t2t: DJB2, SDBM, FNV and Jenkins hash link were added
2005-01-31 16:50 fc_botelho
* BMZ.t2t, CHM.t2t, COMPARISON.t2t, CONCEPTS.t2t, CONFIG.t2t,
FAQ.t2t, GPERF.t2t, LOGO.t2t, README.t2t, TABLE1.t2t, TABLE4.t2t,
TABLE5.t2t, DOC.css: BMZ documentation was finished
2005-01-28 18:12 fc_botelho
* figs/img1.png, figs/img10.png, figs/img100.png, figs/img101.png,
figs/img102.png, figs/img103.png, figs/img104.png, figs/img105.png,
figs/img106.png, figs/img107.png, figs/img108.png, figs/img109.png,
papers/bmz_tr004_04.ps, papers/bmz_wea2005.ps, papers/chm92.pdf,
figs/img11.png, figs/img110.png, figs/img111.png, figs/img112.png,
figs/img113.png, figs/img114.png, figs/img115.png, figs/img116.png,
figs/img117.png, figs/img118.png, figs/img119.png, figs/img12.png,
figs/img120.png, figs/img121.png, figs/img122.png, figs/img123.png,
figs/img124.png, figs/img125.png, figs/img126.png, figs/img127.png,
figs/img128.png, figs/img129.png, figs/img13.png, figs/img130.png,
figs/img131.png, figs/img132.png, figs/img133.png, figs/img134.png,
figs/img135.png, figs/img136.png, figs/img137.png, figs/img138.png,
figs/img139.png, figs/img14.png, figs/img140.png, figs/img141.png,
figs/img142.png, figs/img143.png, figs/img144.png, figs/img145.png,
figs/img146.png, figs/img147.png, figs/img148.png, figs/img149.png,
figs/img15.png, figs/img150.png, figs/img151.png, figs/img152.png,
figs/img153.png, figs/img154.png, figs/img155.png, figs/img156.png,
figs/img157.png, figs/img158.png, figs/img159.png, figs/img16.png,
figs/img160.png, figs/img161.png, figs/img162.png, figs/img163.png,
figs/img164.png, figs/img165.png, figs/img166.png, figs/img167.png,
figs/img168.png, figs/img169.png, figs/img17.png, figs/img170.png,
figs/img171.png, figs/img172.png, figs/img173.png, figs/img174.png,
figs/img175.png, figs/img176.png, figs/img177.png, figs/img178.png,
figs/img179.png, figs/img18.png, figs/img180.png, figs/img181.png,
figs/img182.png, figs/img183.png, figs/img184.png, figs/img185.png,
figs/img186.png, figs/img187.png, figs/img188.png, figs/img189.png,
figs/img19.png, figs/img190.png, figs/img191.png, figs/img192.png,
figs/img193.png, figs/img194.png, figs/img195.png, figs/img196.png,
figs/img197.png, figs/img198.png, figs/img199.png, figs/img2.png,
figs/img20.png, figs/img200.png, figs/img201.png, figs/img202.png,
figs/img203.png, figs/img204.png, figs/img205.png, figs/img206.png,
figs/img207.png, figs/img208.png, figs/img209.png, figs/img21.png,
figs/img210.png, figs/img211.png, figs/img212.png, figs/img213.png,
figs/img214.png, figs/img215.png, figs/img216.png, figs/img217.png,
figs/img218.png, figs/img219.png, figs/img22.png, figs/img220.png,
figs/img221.png, figs/img222.png, figs/img223.png, figs/img224.png,
figs/img225.png, figs/img226.png, figs/img227.png, figs/img228.png,
figs/img229.png, figs/img23.png, figs/img230.png, figs/img231.png,
figs/img232.png, figs/img233.png, figs/img234.png, figs/img235.png,
figs/img236.png, figs/img237.png, figs/img238.png, figs/img239.png,
figs/img24.png, figs/img240.png, figs/img241.png, figs/img242.png,
figs/img243.png, figs/img244.png, figs/img245.png, figs/img246.png,
figs/img247.png, figs/img248.png, figs/img249.png, figs/img25.png,
figs/img250.png, figs/img251.png, figs/img252.png, figs/img253.png,
figs/img26.png, figs/img27.png, figs/img28.png, figs/img29.png,
figs/img3.png, figs/img30.png, figs/img31.png, figs/img32.png,
figs/img33.png, figs/img34.png, figs/img35.png, figs/img36.png,
figs/img37.png, figs/img38.png, figs/img39.png, figs/img4.png,
figs/img40.png, figs/img41.png, figs/img42.png, figs/img43.png,
figs/img44.png, figs/img45.png, figs/img46.png, figs/img47.png,
figs/img48.png, figs/img49.png, figs/img5.png, figs/img50.png,
figs/img51.png, figs/img52.png, figs/img53.png, figs/img54.png,
figs/img55.png, figs/img56.png, figs/img57.png, figs/img58.png,
figs/img59.png, figs/img6.png, figs/img60.png, figs/img61.png,
figs/img62.png, figs/img63.png, figs/img64.png, figs/img65.png,
figs/img66.png, figs/img67.png, figs/img68.png, figs/img69.png,
figs/img7.png, figs/img70.png, figs/img71.png, figs/img72.png,
figs/img73.png, figs/img74.png, figs/img75.png, figs/img76.png,
figs/img77.png, figs/img78.png, figs/img79.png, figs/img8.png,
figs/img80.png, figs/img81.png, figs/img82.png, figs/img83.png,
figs/img84.png, figs/img85.png, figs/img86.png, figs/img87.png,
figs/img88.png, figs/img89.png, figs/img9.png, figs/img90.png,
figs/img91.png, figs/img92.png, figs/img93.png, figs/img94.png,
figs/img95.png, figs/img96.png, figs/img97.png, figs/img98.png,
figs/img99.png: Initial version
2005-01-28 18:07 fc_botelho
* BMZ.t2t, CHM.t2t, COMPARISON.t2t, CONFIG.t2t, README.t2t: It was
improved the documentation of BMZ and CHM algorithms
2005-01-27 18:07 fc_botelho
* BMZ.t2t, CHM.t2t, FAQ.t2t: history of BMZ algorithm is available
2005-01-27 14:23 fc_botelho
* AUTHORS: It was added the authors' email
2005-01-27 14:21 fc_botelho
* BMZ.t2t, CHM.t2t, COMPARISON.t2t, FAQ.t2t, FOOTER.t2t, GPERF.t2t,
README.t2t: It was added FOOTER.t2t file
2005-01-27 12:16 fc_botelho
* src/cmph_types.h: It was removed pjw and glib functions from
cmph_hash_names vector
2005-01-27 12:12 fc_botelho
* src/hash.c: It was removed pjw and glib functions from
cmph_hash_names vector
2005-01-27 11:01 davi
* FAQ.t2t, README, README.t2t, gendocs, src/bmz.c, src/bmz.h,
src/chm.c, src/chm.h, src/cmph.c, src/cmph_structs.c, src/debug.h,
src/main.c: Fix to alternate hash functions code. Removed htonl
stuff from chm algorithm. Added faq.
2005-01-27 09:14 fc_botelho
* README.t2t: It was corrected some formatting mistakes
2005-01-26 22:04 davi
* BMZ.t2t, CHM.t2t, COMPARISON.t2t, GPERF.t2t, README, README.t2t,
gendocs: Added gperf notes.
2005-01-25 19:10 fc_botelho
* INSTALL: generated in version 0.3
2005-01-25 19:09 fc_botelho
* src/: czech.c, czech.h, czech_structs.h: The czech.h,
czech_structs.h and czech.c files were removed
2005-01-25 19:06 fc_botelho
* src/: chm.c, chm.h, chm_structs.h, cmph.c, cmph_types.h, main.c,
Makefile.am: It was changed the prefix czech by chm
2005-01-25 18:50 fc_botelho
* gendocs: script to generate the documentation and the README file
2005-01-25 18:47 fc_botelho
* README: README was updated
2005-01-25 18:44 fc_botelho
* configure.ac: Version was updated
2005-01-25 18:42 fc_botelho
* src/cmph.h: Vector adapter commented
2005-01-25 18:40 fc_botelho
* CHM.t2t, CONFIG.t2t, LOGO.html: It was included the PreProc macro
through the CONFIG.t2t file and the LOGO through the LOGO.html file
2005-01-25 18:33 fc_botelho
* README.t2t, BMZ.t2t, COMPARISON.t2t, CZECH.t2t: It was included
the PreProc macro through the CONFIG.t2t file and the LOGO through
the LOGO.html file
2005-01-24 18:25 fc_botelho
* src/: bmz.c, bmz.h, cmph_structs.c, cmph_structs.h, czech.c,
cmph.c, czech.h, main.c, cmph.h: The file adpater was implemented.
2005-01-24 17:20 fc_botelho
* README.t2t: the memory consumption to create a mphf using bmz
with a heuristic was fixed.
2005-01-24 17:11 fc_botelho
* src/: cmph_types.h, main.c: The algorithms and hash functions
were put in alphabetical order
2005-01-24 16:15 fc_botelho
* BMZ.t2t, COMPARISON.t2t, CZECH.t2t, README.t2t: It was fixed some
English mistakes and It was included the files BMZ.t2t, CZECH.t2t
and COMPARISON.t2t
2005-01-21 19:19 davi
* ChangeLog, Doxyfile: Added Doxyfile.
2005-01-21 19:14 davi
* README.t2t, wingetopt.c, src/cmph.h, tests/graph_tests.c: Fixed

161
INSTALL
View File

@ -1,43 +1,27 @@
Installation Instructions
*************************
Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004 Free
Software Foundation, Inc.
This file is free documentation; the Free Software Foundation gives
unlimited permission to copy, distribute and modify it.
Basic Installation
==================
These are generic installation instructions.
These are generic installation instructions.
The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation. It uses
those values to create a `Makefile' in each directory of the package.
It may also create one or more `.h' files containing system-dependent
definitions. Finally, it creates a shell script `config.status' that
you can run in the future to recreate the current configuration, and a
file `config.log' containing compiler output (useful mainly for
debugging `configure').
It can also use an optional file (typically called `config.cache'
and enabled with `--cache-file=config.cache' or simply `-C') that saves
the results of its tests to speed up reconfiguring. (Caching is
disabled by default to prevent problems with accidental use of stale
cache files.)
you can run in the future to recreate the current configuration, a file
`config.cache' that saves the results of its tests to speed up
reconfiguring, and a file `config.log' containing compiler output
(useful mainly for debugging `configure').
If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to the address given in the `README' so they can
be considered for the next release. If you are using the cache, and at
some point `config.cache' contains results you don't want to keep, you
may remove or edit it.
be considered for the next release. If at some point `config.cache'
contains results you don't want to keep, you may remove or edit it.
The file `configure.ac' (or `configure.in') is used to create
`configure' by a program called `autoconf'. You only need
`configure.ac' if you want to change it or regenerate `configure' using
a newer version of `autoconf'.
The file `configure.in' is used to create `configure' by a program
called `autoconf'. You only need `configure.in' if you want to change
it or regenerate `configure' using a newer version of `autoconf'.
The simplest way to compile this package is:
@ -70,22 +54,20 @@ The simplest way to compile this package is:
Compilers and Options
=====================
Some systems require unusual options for compilation or linking that the
`configure' script does not know about. Run `./configure --help' for
details on some of the pertinent environment variables.
Some systems require unusual options for compilation or linking that
the `configure' script does not know about. You can give `configure'
initial values for variables by setting them in the environment. Using
a Bourne-compatible shell, you can do that on the command line like
this:
CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
You can give `configure' initial values for configuration parameters
by setting variables in the command line or in the environment. Here
is an example:
./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
*Note Defining Variables::, for more details.
Or on systems that have the `env' program, you can do it like this:
env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
Compiling For Multiple Architectures
====================================
You can compile the package for more than one kind of computer at the
You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory. To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'. `cd' to the
@ -93,28 +75,28 @@ directory where you want the object files and executables to go and run
the `configure' script. `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.
If you have to use a `make' that does not support the `VPATH'
variable, you have to compile the package for one architecture at a
time in the source code directory. After you have installed the
package for one architecture, use `make distclean' before reconfiguring
for another architecture.
If you have to use a `make' that does not supports the `VPATH'
variable, you have to compile the package for one architecture at a time
in the source code directory. After you have installed the package for
one architecture, use `make distclean' before reconfiguring for another
architecture.
Installation Names
==================
By default, `make install' will install the package's files in
By default, `make install' will install the package's files in
`/usr/local/bin', `/usr/local/man', etc. You can specify an
installation prefix other than `/usr/local' by giving `configure' the
option `--prefix=PREFIX'.
option `--prefix=PATH'.
You can specify separate installation prefixes for
architecture-specific files and architecture-independent files. If you
give `configure' the option `--exec-prefix=PREFIX', the package will
use PREFIX as the prefix for installing programs and libraries.
give `configure' the option `--exec-prefix=PATH', the package will use
PATH as the prefix for installing programs and libraries.
Documentation and other data files will still use the regular prefix.
In addition, if you use an unusual directory layout you can give
options like `--bindir=DIR' to specify different values for particular
options like `--bindir=PATH' to specify different values for particular
kinds of files. Run `configure --help' for a list of the directories
you can set and what kinds of files go in them.
@ -125,7 +107,7 @@ option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
Optional Features
=================
Some packages pay attention to `--enable-FEATURE' options to
Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System). The
@ -140,80 +122,47 @@ you can use the `configure' options `--x-includes=DIR' and
Specifying the System Type
==========================
There may be some features `configure' cannot figure out automatically,
but needs to determine by the type of machine the package will run on.
Usually, assuming the package is built to be run on the _same_
architectures, `configure' can figure that out, but if it prints a
message saying it cannot guess the machine type, give it the
`--build=TYPE' option. TYPE can either be a short name for the system
type, such as `sun4', or a canonical name which has the form:
There may be some features `configure' can not figure out
automatically, but needs to determine by the type of host the package
will run on. Usually `configure' can figure that out, but if it prints
a message saying it can not guess the host type, give it the
`--host=TYPE' option. TYPE can either be a short name for the system
type, such as `sun4', or a canonical name with three fields:
CPU-COMPANY-SYSTEM
where SYSTEM can have one of these forms:
OS KERNEL-OS
See the file `config.sub' for the possible values of each field. If
See the file `config.sub' for the possible values of each field. If
`config.sub' isn't included in this package, then this package doesn't
need to know the machine type.
need to know the host type.
If you are _building_ compiler tools for cross-compiling, you should
If you are building compiler tools for cross-compiling, you can also
use the `--target=TYPE' option to select the type of system they will
produce code for.
If you want to _use_ a cross compiler, that generates code for a
platform different from the build platform, you should specify the
"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.
produce code for and the `--build=TYPE' option to select the type of
system on which you are compiling the package.
Sharing Defaults
================
If you want to set default values for `configure' scripts to share, you
can create a site shell script called `config.site' that gives default
values for variables like `CC', `cache_file', and `prefix'.
If you want to set default values for `configure' scripts to share,
you can create a site shell script called `config.site' that gives
default values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists. Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.
Defining Variables
Operation Controls
==================
Variables not defined in a site shell script can be set in the
environment passed to `configure'. However, some packages may run
configure again during the build, and the customized values of these
variables may be lost. In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'. For example:
./configure CC=/usr/local2/bin/gcc
will cause the specified gcc to be used as the C compiler (unless it is
overridden in the site shell script).
`configure' Invocation
======================
`configure' recognizes the following options to control how it operates.
`--help'
`-h'
Print a summary of the options to `configure', and exit.
`--version'
`-V'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`configure' recognizes the following options to control how it
operates.
`--cache-file=FILE'
Enable the cache: use and save the results of the tests in FILE,
traditionally `config.cache'. FILE defaults to `/dev/null' to
disable caching.
Use and save the results of the tests in FILE instead of
`./config.cache'. Set FILE to `/dev/null' to disable caching, for
debugging `configure'.
`--config-cache'
`-C'
Alias for `--cache-file=config.cache'.
`--help'
Print a summary of the options to `configure', and exit.
`--quiet'
`--silent'
@ -226,6 +175,8 @@ overridden in the site shell script).
Look for the package's source code in directory DIR. Usually
`configure' can determine that directory automatically.
`configure' also accepts some other, not widely useful, options. Run
`configure --help' for more details.
`--version'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`configure' also accepts some other, not widely useful, options.

228
README
View File

@ -1,228 +0,0 @@
CMPH - C Minimal Perfect Hashing Library
-------------------------------------------------------------------
Motivation
==========
A perfect hash function maps a static set of n keys into a set of m integer numbers without collisions, where m is greater than or equal to n. If m is equal to n, the function is called minimal.
Minimal perfect hash functions (concepts.html) are widely used for memory efficient storage and fast retrieval of items from static sets, such as words in natural languages, reserved words in programming languages or interactive systems, universal resource locations (URLs) in Web search engines, or item sets in data mining techniques. Therefore, there are applications for minimal perfect hash functions in information retrieval systems, database systems, language translation systems, electronic commerce systems, compilers, operating systems, among others.
The use of minimal perfect hash functions is, until now, restricted to scenarios where the set of keys being hashed is small, because of the limitations of current algorithms. But in many cases, to deal with huge set of keys is crucial. So, this project gives to the free software community an API that will work with sets in the order of billion of keys.
Probably, the most interesting application for minimal perfect hash functions is its use as an indexing structure for databases. The most popular data structure used as an indexing structure in databases is the B+ tree. In fact, the B+ tree is very used for dynamic applications with frequent insertions and deletions of records. However, for applications with sporadic modifications and a huge number of queries the B+ tree is not the best option, because practical deployments of this structure are extremely complex, and perform poorly with very large sets of keys such as those required for the new frontiers database applications (http://acmqueue.com/modules.php?name=Content&pa=showpage&pid=299).
For example, in the information retrieval field, the work with huge collections is a daily task. The simple assignment of ids to web pages of a collection can be a challenging task. While traditional databases simply cannot handle more traffic once the working set of web page urls does not fit in main memory anymore, minimal perfect hash functions can easily scale to hundred of millions of entries, using stock hardware.
As there are lots of applications for minimal perfect hash functions, it is important to implement memory and time efficient algorithms for constructing such functions. The lack of similar libraries in the free software world has been the main motivation to create the C Minimal Perfect Hashing Library (gperf is a bit different (gperf.html), since it was conceived to create very fast perfect hash functions for small sets of keys and CMPH Library was conceived to create minimal perfect hash functions for very large sets of keys). C Minimal Perfect Hashing Library is a portable LGPLed library to generate and to work with very efficient minimal perfect hash functions.
-------------------------------------------------------------------
Description
===========
The CMPH Library encapsulates the newest and more efficient algorithms in an easy-to-use, production-quality, fast API. The library was designed to work with big entries that cannot fit in the main memory. It has been used successfully for constructing minimal perfect hash functions for sets with more than 100 million of keys, and we intend to expand this number to the order of billion of keys. Although there is a lack of similar libraries, we can point out some of the distinguishable features of the CMPH Library:
- Fast.
- Space-efficient with main memory usage carefully documented.
- The best modern algorithms are available (or at least scheduled for implementation :-)).
- Works with in-disk key sets through of using the adapter pattern.
- Serialization of hash functions.
- Portable C code (currently works on GNU/Linux and WIN32 and is reported to work in OpenBSD and Solaris).
- Object oriented implementation.
- Easily extensible.
- Well encapsulated API aiming binary compatibility through releases.
- Free Software.
----------------------------------------
Supported Algorithms
====================
- BMZ Algorithm.
A very fast algorithm based on cyclic random graphs to construct minimal
perfect hash functions in linear time. The resulting functions are not order preserving and
can be stored in only 4cn bytes, where c is between 0.93 and 1.15.
- CHM Algorithm.
An algorithm based on acyclic random graphs to construct minimal
perfect hash functions in linear time. The resulting functions are order preserving and
are stored in 4cn bytes, where c is greater than 2.
----------------------------------------
News for version 0.4
====================
- Vector Adapter has been added.
- An optimized version of bmz (bmz8) for small set of keys (at most 256 keys) has been added.
- All reported bugs and suggestions have been corrected and included as well.
----------------------------------------
News for version 0.3
====================
- New heuristic added to the bmz algorithm permits to generate a mphf with only
24.80n + O(1) bytes. The resulting function can be stored in 3.72n bytes.
----------------------------------------
Examples
========
Using cmph is quite simple. Take a look.
#include <cmph.h>
// Create minimal perfect hash function from in-memory vector
int main(int argc, char **argv)
{
// Creating a filled vector
const char *vector[] = {"aaaaaaaaaa", "bbbbbbbbbb", "cccccccccc", "dddddddddd", "eeeeeeeeee",
"ffffffffff", "gggggggggg", "hhhhhhhhhh", "iiiiiiiiii", "jjjjjjjjjj"};
unsigned int nkeys = 10;
// Source of keys
cmph_io_adapter_t *source = cmph_io_vector_adapter(vector, nkeys);
//Create minimal perfect hash function using the default (chm) algorithm.
cmph_config_t *config = cmph_config_new(source);
cmph_t *hash = cmph_new(config);
cmph_config_destroy(config);
//Find key
const char *key = "jjjjjjjjjj";
unsigned int id = cmph_search(hash, key, strlen(key));
fprintf(stderr, "Id:%u\n", id);
//Destroy hash
cmph_destroy(hash);
free(source);
return 0;
}
Download vector_adapter_ex1.c (examples/vector_adapter_ex1.c). This example does not work in version 0.3. You need to update the sources from CVS to make it works.
-------------------------------
#include <cmph.h>
#include <stdio.h>
// Create minimal perfect hash function from in-disk keys using BMZ algorithm
int main(int argc, char **argv)
{
//Open file with newline separated list of keys
FILE * keys_fd = fopen("keys.txt", "r");
cmph_t *hash = NULL;
if (keys_fd == NULL)
{
fprintf(stderr, "File \"keys.txt\" not found\n");
exit(1);
}
// Source of keys
cmph_io_adapter_t *source = cmph_io_nlfile_adapter(keys_fd);
cmph_config_t *config = cmph_config_new(source);
cmph_config_set_algo(config, CMPH_BMZ);
hash = cmph_new(config);
cmph_config_destroy(config);
//Find key
const char *key = "jjjjjjjjjj";
unsigned int id = cmph_search(hash, key, strlen(key));
fprintf(stderr, "Id:%u\n", id);
//Destroy hash
cmph_destroy(hash);
free(source);
fclose(keys_fd);
return 0;
}
Download file_adapter_ex2.c (examples/file_adapter_ex2.c) and keys.txt (examples/keys.txt)
--------------------------------------
The cmph application
====================
cmph is the name of both the library and the utility
application that comes with this package. You can use the cmph
application for constructing minimal perfect hash functions from the command line.
The cmph utility
comes with a number of flags, but it is very simple to create and to query
minimal perfect hash functions:
$ # Using the chm algorithm (default one) for constructing a mphf for keys in file keys_file
$ ./cmph -g keys_file
$ # Query id of keys in the file keys_query
$ ./cmph -m keys_file.mph keys_query
The additional options let you set most of the parameters you have
available through the C API. Below you can see the full help message for the
utility.
usage: cmph [-v] [-h] [-V] [-k nkeys] [-f hash_function] [-g [-c value][-s seed] ] [-m file.mph] [-a algorithm] keysfile
Minimum perfect hashing tool
-h print this help message
-c c value that determines the number of vertices in the graph
-a algorithm - valid values are
* bmz
* chm
-f hash function (may be used multiple times) - valid values are
* djb2
* fnv
* jenkins
* sdbm
-V print version number and exit
-v increase verbosity (may be used multiple times)
-k number of keys
-g generation mode
-s random seed
-m minimum perfect hash function file
keysfile line separated file with keys
Additional Documentation
========================
FAQ (faq.html)
Downloads
=========
Use the project page at sourceforge: http://sf.net/projects/cmph
License Stuff
=============
Code is under the LGPL.
----------------------------------------
Enjoy!
Davi de Castro Reis (davi@users.sourceforge.net)
Fabiano Cupertino Botelho (fc_botelho@users.sourceforge.net)
Last Updated: Fri Sep 16 00:47:45 2005

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@ -0,0 +1,8 @@
# ChangeLog for <CATEGORY>/<PACKAGE_NAME>
# Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
# $Header: /cvsroot/cmph/cmph/portage/dev-libs/cmph/ChangeLog,v 1.1 2005/09/26 04:30:54 davi Exp $
*cmph-0.4 (25 Sep 2005)
25 Sep 2005; Davi de Castro Reis <davi.reis@gmail.com> cmph-04.ebuild, metadata.xml, ChangeLog:
Initial import.

View File

@ -0,0 +1,25 @@
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /cvsroot/cmph/cmph/portage/dev-libs/cmph/cmph-0.4.ebuild,v 1.1 2005/09/26 04:30:54 davi Exp $
inherit eutils
DESCRIPTION="Library for building large minimal perfect hashes"
HOMEPAGE="http://cmph.sf.net/"
SRC_URI="http://unc.dl.sourceforge.net/sourceforge/cmph/${P}.tar.gz"
LICENSE="LGPL-2"
SLOT="0"
KEYWORDS="~x86"
IUSE=""
DEPEND="gcc libtool libc"
RDEPEND="libc"
S=${WORKDIR}/${P}
src_compile() {
econf || die "econf failed"
emake || die "emake failed"
}
src_install() {
make DESTDIR=${D} install || die
}

View File

@ -0,0 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>no-herd</herd>
</pkgmetadata>

View File

@ -7,7 +7,7 @@ int main(int argc, char **argv)
{
graph_iterator_t it;
cmph_uint32 i, neighbor;
graph_t *g = graph_new(5, 10);
graph_t *g = graph_new(5, 10, 0);
fprintf(stderr, "Building random graph\n");
for (i = 0; i < 10; ++i)
@ -26,7 +26,7 @@ int main(int argc, char **argv)
graph_destroy(g);
fprintf(stderr, "Building cyclic graph\n");
g = graph_new(4, 5);
g = graph_new(4, 5, 0);
graph_add_edge(g, 0, 3);
graph_add_edge(g, 0, 1);
graph_add_edge(g, 1, 2);
@ -38,7 +38,7 @@ int main(int argc, char **argv)
graph_destroy(g);
fprintf(stderr, "Building non-cyclic graph\n");
g = graph_new(5, 4);
g = graph_new(5, 4, 0);
graph_add_edge(g, 0, 1);
graph_add_edge(g, 1, 2);
graph_add_edge(g, 2, 3);