coverity static analysis

Suppose you have a class like this:public class Utils { Static { LOG.I ("Static", "isload!"); }Public static void Staticcode () {}public int value;public void Nostaticcode () {}}When will the static code block be loaded when the whole program is running?1. When instantiating the class. Column: New Util

Before formally entering the test, it is helpful to do some static code analysis and code review to improve the quality and the system, the above is the data proofPMD It is a Java source code parser based on a static rule set that identifies potential problems such as:– Possible bug--empty try/catch/finally/switch blocks.– Useless codes (Dead code): Useless local

Stunned by digital speech: efficiency analysis and comparison of TP framework, php, html, and php static pages !! Nbsp; nbsp; I plan to create a high-performance chat server Recently. I don't know how efficient Thinkphp3.2 is? That is to say, the efficiency of the framework is digital. We are shocked: analysis and comparison of the efficiency of TP framework, p

See the document "Cppcheck and PREfast static analysis test for Cplusplus code". zipC + + Test source code main.cpp#define NULL 0#include #include Not initializedvoid Defect1 (){int A;int b;b = A;}Null pointer valuevoid Defect2 (int b, int c){int * p = NULL;int a = 1;if (b = = 1){if (c = = 1){p = A;}Else{}}Else{if (c = = 1){}Else{p = A;}}* p;return;}Operator precedence for possible errorsvoid Defect3 (){i

The examples in this article describe the public, private, privileged, and static member usages in JavaScript. Share to everyone for your reference. The specific analysis is as follows: The following content is in the "Javascript.dom Advanced Program Design" Inside excerpt out, relatively easy to understand, especially in this record, easy to get started JavaScript friends to share ah. Copy Code code

Digital speaking, Shock: TP frame, php,html,php static page execution efficiency analysis and comparison!! Recently intends to do a high-performance chat server, do not know how Thinkphp3.2 efficiency? So what is the efficiency of the framework? So the test. Task: Reads 44 data from the database. 1, Tp3.2 Home->controler->indexcontroler->index () $m =m (' Login_log '); $login _log_list= $m->select (); $thi

recently discovered a very useful static code analysis tool, Pvs-studio, developed by a Russian company to diagnose errors in C/c++/c++11 source code. It is compatible with the visual Studio development environment and the latest version supports visual Studio2015. After the Pvs-studio is installed, Pvs-studio will appear in the Visual Studio navigation bar , as shown in visual Studio2010 .Here is an exa

opportunity to automate our own development processes. To this end, we have written a series of articles to automate the development of the software development process, which will show you when and how to successfully apply automation. A typical approach to refactoring is to make small changes to existing code when introducing new code or changing methods. The challenge with this technique is that the developers of a development team have inconsistent application methods and can easily miss th

Call Process AnalysisThe system call process and the general interrupt processing process are analyzed together, here comes a classic graph bar (from Ulk).Here, only from the return process,You can see that either the Interrupt return (RET_FROM_INTR) or the system call returns, both Work_pending and resume_userspace are usedSummaryThis content took 12 hours, originally wanted to try gdb tracking, but due to tool limitations, not code-based tracking, so use a flowchart analysis.Key point: Determ

"To the programmer on the road."For a developer, the ability to develop any module in a system is the embodiment of its core value.For an architect, mastering the advantages of various languages and applying them to the system simplifies the development of the system and is the first step in its architectural career.For a development team, in the short term to develop a user satisfaction of the software system is the core competitiveness of the embodiment.Every programmer can not be complacent,

XML value to undefinedIn browsers other than IE, if parsing fails, the method parsefromstring () does not throw any exceptions and only returns a Document object that contains the error message, as follows:xmlns= "http./www.mozilla.org/newlayout/xml/parsererror.xml"> (Error description) SourceText > (a snippet of the source XML) SourceText > ParserError >Based on the following, we use a few judgment conditions to verify the success of the analysisif (!xml | |!xml.documentelement | | xml.gete

function Globaleval (src) { if (window.execscript) { window.execscript (src); return ; } var function () { window.eval.call (WINDOW,SRC); }; fn ();};You can say this is enough, but looking back at our jquery source will find a lot leaner.Data rnotwhite.test (data)This condition guarantees data and is not a space, of course, you can not pass the string but it doesn't make sense. Rnotwhite is defined in the constructor// Check If a string has a non-whitespa

1. Press Turn clangsudo apt-get install Clang2. Write the test procedure MEMLEAK.C#include 3. Run code static checkScan-build-o memleak gcc memleak.c-o mThe results are as follows:Memleak.c:9:5:warning:dereference of NULL pointer (loaded from variable ' mem ')*mem=0xdeadbeaf;^~~~1 warning generated.Scan-build:1 Bugs found.4. In the current directory will survive a Memleak folder, a folder named after a date, open the folder in the browser index.html v

. Activate functions window (click a row to make this window in focus state), and choose search> search...> Input Function Name> OK from the top menu. Ida is a fuzzy search. You can leave the full name blank. As long as you can ensure that the entered characters will make the search results unique, if the match is in progress, it will jump to that function and double-click this function, you can see the disassembly of this function in the right window.Code. If there are multiple search resul

First, installationAdd images to accelerate downloads./composer.phar config-g repo.packagist composer https://packagist.phpcomposer.comCodesnifferComposer.phar global require "squizlabs/php_codesniffer=*"Mess DetectorComposer.phar global require "phpmd/phpmd=*"Second, phpstorm configuration phpcs, PHPMD positionFile, Default Setting, Language Frameworks, Code Sniffer, config[local] Click ... button, Path:c:\users\{username}\appdata\roaming\composer\vendor\bin\phpcs.batFile, Default Setting, Lan