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C# Float expression: strange behavior when casting the result float to int
...ly 62 due to floating point rounding (it's actually the value 61.99999809265137 when expressed as a double) and that your question is only about why two seemingly identical computations result in the wrong value.
The answer is that in the case of (int)(6.2f * 10), you are taking the double value 61...
Best way to allow plugins for a PHP application
...'my_plugin_func2');
function my_plugin_func1($args) {
return array(4, 5);
}
function my_plugin_func2($args) {
return str_replace('sample', 'CRAZY', $args[0]);
}
/////////////////////////
/** Sample Application **/
$a = 1;
$b = 2;
list($a, $b) = hook('a_b', $a, $b);
$str = "This is my...
What is the difference between :focus and :active?
... |
edited May 31 at 3:05
Rachid O
9,0051212 gold badges5151 silver badges7878 bronze badges
answered ...
PHP编译configure时常见错误 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...上有的说法是：–with-named-curses-libs=/usr/lib/libncursesw.so.5
其实是不对的，虽然能解决configure的错误，但是make的时候会提示错误，正确的做法应该是
centos: yum -y install ncurses-devel
debian: apt-get install libncurses5-dev
2、configure: error: x...
Access-Control-Allow-Origin Multiple Origin Domains?
...
answered Dec 5 '09 at 0:10
yesthatguyyesthatguy
8,95411 gold badge1313 silver badges44 bronze badges
...
Run all SQL files in a directory
...run in order to apply changes made by other developers on an SQL Server 2005 database.
The files are named according to the following pattern:
...
What does “yield break;” do in C#?
...
536
It specifies that an iterator has come to an end. You can think of yield break as a return sta...
Get Bitmap attached to ImageView
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answered Nov 29 '11 at 6:15
Arslan AnwarArslan Anwar
18.1k1616 gold badges7272 silver badges104104 bronze badges
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Database development mistakes made by application developers [closed]
... to
throw on the DISTINCT keyword and POOF
all his troubles go away.
5. Favouring aggregation over joins
Another common mistake by database application developers is to not realize how much more expensive aggregation (ie the GROUP BY clause) can be compared to joins.
To give you an idea of h...