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Good Hash Function for Strings
...Java":
The String hash function implemented
in all releases prior to 1.2 examined
at most sixteen characters, evenly
spaced throughout the string, starting
with the first character. For large
collections of hierarchical names,
such as URLs, this hash function
displayed terrible beh...
How do I choose grid and block dimensions for CUDA kernels?
...g that CUDA 6.5 (now in Release Candidate version) includes several new runtime functions to aid in occupancy calculations and launch configuration, see
CUDA Pro Tip: Occupancy API Simplifies Launch Configuration
One of the useful functions is cudaOccupancyMaxPotentialBlockSize which heuristically...
Get the current first responder without using a private API
... most excellent answer:
import UIKit
extension UIResponder {
// Swift 1.2 finally supports static vars!. If you use 1.1 see:
// http://stackoverflow.com/a/24924535/385979
private weak static var _currentFirstResponder: UIResponder? = nil
public class func currentFirstResponder...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...
Be aware that the tcp_fin_timeout blocks the same socket (source, target, port combination) for another 60 seconds by default, which greatly reduces the number of actually available tcp connection between two systems, if connections are disconnected a...
Why doesn't CSS ellipsis work in table cell?
...53, 153, 153, 0.4);
}
table td, table th {
text-align: left;
padding: 1.2em 20px;
white-space: nowrap;
border-left: 1px solid rgba(153, 153, 153, 0.4);
}
table td:first-child, table th:first-child {
border-left: 0;
}
table th {
border-bottom: 1px solid rgba(153, 153, 153, 0.4);
font...
What exactly do the Vagrant commands do?
...now key to your own private key and prepare boxes to use that.
Also some times, you may want to use ssh based automation with your VMs. In that case, knowing which key is being used is useful. You could do use normal ssh command - ssh -i keyfile ..
vagrant status <vmname>
This command is a ...
mailto link with HTML body
...ing: 6px;
}
thead {
text-align: center;
font-size: 1.2em;
color: navy;
background-color: silver;
font-weight: bold;
}
tbody td {
text-align: center;
}
</style>
</head>
<body>
<table width=100%>
<tr>...
How to check if PHP array is associative or sequential?
...
I think this would avoid a lot of potential cpu time and memory if one would check if isset($arr[0]) is false before extracting all the keys as is it clearly associative if the array is not empty but has no element in 0 position. As "most" real associative arrays have stri...
How do I install a NuGet package into the second project in a solution?
...
In Visual Studio 2015 (as of Nuget v3.1.2) the syntax is now:
Install-Package ThePackage -ProjectName YourProjectName
Note: -ProjectName vs -Project
share
|
i...
How to use Swift @autoclosure
... automatically wrapped up into a closure expression and can be called each time around the loop
func until<L: LogicValue>(pred: @auto_closure ()->L, block: ()->()) {
while !pred() {
block()
}
}
// doSomething until condition becomes true
until(condition) {
doSometh...