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What is the most effective way for float and double comparison?
...vate:
// The data type used to store the actual floating-point number.
union FloatingPointUnion {
RawType value_; // The raw floating-point number.
Bits bits_; // The bits that represent the number.
};
// Converts an integer from the sign-and-magnitude representation to
// t...
Why always ./configure; make; make install; as 3 separate steps?
...l. That means then you have to use actually sudo make install because only root can copy files to /usr and /usr/local.
Now you see that each step is a pre-requirement for next step. Each step is a preparation to make things work in a problemless flow. Distros use this metaphor to build packages (...
iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...复杂。这样就给我们新接手项目的开发者带来很多困扰。如何快速查看一个复杂UI的界面层次和布局，最快的方法就是用到视图调试。
当项目运行到某一个界面（可以是模拟器或真机）时，开启视图调试，点击按钮如图：
这样...
How to drop a table if it exists?
...MS servers provide, at least, basic INFORMATION_SCHEMA support, including: MySQL, Postgres, Oracle, IBM DB2, and Microsoft SQL Server 7.0 (and greater).
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How to change package name of an Android Application
...
It does the same to me right now if I right-click on the root directory. At least for me, that's not my actual package name. If your package name is com.a.bc, there should be a directory below the root directory called bc. That's where you'll get the different options. Right now, I...
Android emulator freezing OS X v10.9 (Mavericks) with HAXM
...exander from Intel's response pasted below)
Hi,
We identified the root cause of this issue. The Intel HaXM team is
testing an update to support newly released OSes (Microsoft Windows*
8.1 and OS X Mavericks*). Look for word on our upcoming update.
Thanks, Alex
This is a known iss...
How to add facebook share button on my website?
...ok at the following code
FB Javascript SDK initialization
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: 'YOUR APP ID', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script'); e.async = true;
e.src...
Can a program depend on a library during compilation but not runtime?
...le configuration" (using Ivy terms) and major directory under your project root? For instance, all my JUnit tests that depend on the JUnit JAR will be under the test/ root, etc. I just don't see how the same classes, packaged under the same source root, could be "configured" to depend on different J...
How do I get list of all tables in a database using TSQL?
...ES
WHERE TABLE_TYPE = 'BASE TABLE'
AND TABLE_CATALOG='dbName' --(for MySql, use: TABLE_SCHEMA='dbName' )
PS: For SQL Server 2000:
SELECT * FROM sysobjects WHERE xtype='U'
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Bash script error [: !=: unary operator expected
...ef | grep -v '\['`"
else
echo "`ps -ef | grep '\[' | grep root`"
fi;;
*) echo "usage: $0 [-v]"
exit 1;; #It is good practice to throw a code, hence allowing $? check
esac
If one cares not where the '-v' arg is, then simply drop the case inside a loop. The woul...