gnu flex

This article will use FLUORINEFX and flex to introduce a simple video chat room case development, hope that through this article and you exchange FluorineFX and flex related technology, but also hope this article can help to need to use FLUORINEFX to do timely application development of novice friends. First, the development environment and related technologies and the simple requirements definition in this

vacant.Encountered in the work of the predecessor himself wrote a language for defining geometry, you can also evaluate expressions. Although not to see the source code, it has been admired unceasingly. Later, I contacted the scripting language, like Tcl/tk,python, and found that using these open source libraries could be a simple, stable custom development language. Because this type of script can not only evaluate an expression, it can also evaluate an expression with parameters, such as:34 s

/********************************************************************* * Author:samson * date:07/11/2014 * Test PL Atform: * 3.11.0.11-generic #19-ubuntu * GNU bash, version 4.2.45 * **************************** ***************************************/With Windows and GNU Linux today, how do you clean up the junk under GNU Linux? In order to release the space tha

disk.EOF)Script_doc=$(Cat-H Display this help.EOF)Script_examples=$(CatAUTO_MOUNT.SH/DEV/SDD1EOF)State_prefix="==="Warning_prefix="***"Error_prefix="!!!"functionDisplay_help () {if[-N"$script _usage"]; Then Echo-E"Usage: $script _usage" fi if[-N"$script _function"]; Then Echo-E"$script _function" fi if[-N"$script _doc"] ; Then Echo-E"\n$script_doc" fi if[-N"$script _examples"]; Then Echo-E"\nexamples" Echo-E"$script _examples" fi}# Process

1. __attribute__ One of the major features of GNU C (which is not known to beginners) is the __attribute__ mechanism. __ATTRIBUTE__ can set function attributes, variable attributes (Variable attribute), and type attributes There are two underscores before and after the __attribute__, followed by a pair of original brackets, with the corresponding __attribute__ parameters inside the brackets. The __ATTRIBUTE__ syntax format is: __attribute__ ((att

Flex code: usingsystem; usingsystem.web; usingsystem.web.services; usingsystem.web.services.protocols; usingsystem.data.oledb; usingsystem.collections; usingsystem.data; [WebService (namespace= "http://tempuri.org/")] [WebServiceBinding (Conformsto=wsiprofiles.basicprofile1_1)] publicclassservice: system.web.services.webservice {publicService () { //If you are using a design component, uncomment the following line InitializeComponent (); nbsp} [w

Release date:Updated on: Affected Systems:RedHat Enterprise Linux 6RedHat Enterprise Linux 5.0RedHat Fedora 17RedHat Fedora 16Description:--------------------------------------------------------------------------------Bugtraq id: 54982Cve id: CVE-2012-3480 Glibc is the implementation of C libraries in most Linux operating systems. GNU glibc has multiple buffer overflow vulnerabilities. Local attackers can exploit these vulnerabilities to execute arbit

GNU a2ps Arbitrary Command Execution Vulnerability (CVE-2014-0466) Release date:Updated on: Affected Systems:GNU a2ps 4.14Description:--------------------------------------------------------------------------------Bugtraq id: 66660CVE (CAN) ID: CVE-2014-0466GNU a2ps is a filter that converts files to PostScript.Fixps scripts in a2ps 4.14 do not use the-dSAFER option when running gs, which allows an attacker with independent context to execute arbitr

/*************************************** ******************************* Function: Test daemon process* Author: Samson* Date: 11/30/2011* Test Platform:* GNU Linux version 2.6.29.4* GCC version 4.4.0 20090506 (Red Hat 4.4.0-4) (GCC)**************************************** ****************************/ # Include # Include # Include # Include # Include IntMain (){Int frokret, fatherid;If (frokret = fork ())){Fatherid = getppid ();Printf ("Father proces

The following lists all the parameter definitions of GNU make 3.80. The other Linux versions are similar to those of the manufacturer's make. However, for details about the parameters of make, see the product documentation. "-B""-M"The two parameters are used to ignore the compatibility with other versions of make. "-B""-Always-make"All goals must be updated (re-compiled ). "-C ""-Directory ="Specifies the directory for reading makefile. If multiple "

The basic file formats of the arm system are commonly used in ARM-based embedded system development.There are three basic file formats for the arm system:1) bin, flat-board binary format, which is generally used for Directly Writing to flash and loading to the monitor program.2) Elf, executable and linkable format, a common object file format, generally generated by GNU Compiler Collection (GCC.3) axf, an extended version in Bin format. The main part

GPROF Introduction GPROF is the GNU profiler tool. It can display the "flat profile" of the program running, including the number of calls to each function and the processor time consumed by each function. You can also display the "Call diagram", including the call relationship of the function, and the time consumed by each function call. You can also display the "annotated source code", which is a copy of the program source code, marking the number o

I used GCJ to compile itext and used itext to write many small programs (pdfrotate and nup_pdf can be obtained from the Internet now). Here I will only introduce how to obtain the GCJ compiling environment. GCJ is a Java editor based on the GNU protocol. It supports the following compilation methods:Java Source Code directly compiles the local machine code. On windows, the exe executable program (separated from JRE) is used );Java source code is comp

Use GNU parallelCreate cron tasks in batches: # Host. lst is the host list# View the current cron taskParallel -- nonall-j0 -- slf host. lst "hostname; crontab-l"# View/var/spool/cron filesParallel -- nonall-j0 -- slf host. lst "hostname; ls-l/var/spool/cron"# Set a cron taskParallel -- nonall-j0 -- slf host. lst echo '"0 0 **** cd/root/nmon;/root/nmon-f-s600-c144">/var/spool/cron/root' -- The tag parameter adds a tag for the output row # Whe

file Form-radio_signal.dat 4. Show it in "Waterfall Chart" form 5. Here is the waterfall diagram, which is the first "unlock" signal, followed by the opposite signal. Now I can simply replay these signals, in order to analyze these signals in more detail, I have tried to use audacity clip these signals, Audacity is a free audio processing software, while it can edit the wireless signal, but the author said here will not reveal too much, but can refer to this: click MyThis is the lo

memory Stores may is globally visible yet, and previous memory loads may not yet be satisfied. void __sync_lock_release ( type *ptr, ...) This builtin releases the lock acquired by __sync_lock_test_and_set . Normally this means writing the constant 0 to * ptr . This builtin was not a full barrier, but rather a release barrier. This means-all previous memory stores is globally visible, and all previous memory loads has bee

I wrote a simple general makefile template to compile CPP or CProgramSee the next log. Http://blog.csdn.net/felixit0120/article/details/7663756 GNU make learning summary: 1. $ (patsubst pattern, replacement, text)Function: search for words separated by spaces in "text" and replace pattern with replacement. The pattern wildcard % can be used in the pattern parameter to represent several characters in a word. If the replacement parameter also c

it depends on. Target: dependency The backslash \ is a line break of a command. Indicates that the tab key is used for the indentation on the left when the command is executed. In this example, the left side of the CC command is tab indent. In other cases, spaces are used for the interval. The preceding example is from top to bottom: File edit depends on some. O target files Create the edit execution file, and CC-O continuously links some. O files. (After executing the make command, find the ma

[Do not perform O M without _ 11] Precautions for permission setting during GNU/Linux NFS server deploymentMeasure the test taker's knowledge about how to delete massive data files in seconds during O M.Http://www.bkjia.com/ OS /201304/203155.htmlNFS, simply put, is a file serverIn the deployment process, the read and write permissions of files are more error-prone than the tutorial.This blog is based on the following six aspects, but focuses on fil

Search for large files occupying hard disks in GNU/Linux (1) Search for files larger than 50 MB from the root directory, and display the first 10 files in the size list: [plain] [root @ Rocky ~] # Find/-printf "% k % p \ n" | sort-g-k 1,1 | \ awk '{if ($1> 50000) print $1/1024 "MB" "$2} '| tail-n 10 111.968 MB/mnt/hgfs/vmshare/Disk1/oms/Disk1/stage/Components/oracle. sysman. agent. download/10.2.0.1.0/1/DataFiles/filegroup5.1.1.jar 250.258 Mbit/u01/ap