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What makes a keychain item unique (in iOS)?
...hich are not exposed by SecItem yet.
For a keychain item of class kSecClassIdentity I haven't found info on the primary key fields in the open source files, but as an identity is the combination of a private key and a certificate, I assume the primary key is the combination of the primary key fields...
bash HISTSIZE vs. HISTFILESIZE?
...gh, I think. Most people won't reach the end of it. I think you should consider summarizing it
– slezica
Jun 7 '14 at 0:44
22
...
64-bit version of Boost for 64-bit windows
...you sure? It seems to have worked for me and this explicitly states to provide a path to 32 bit compiler even when building in 64 bit.
– Maciej Gryka
Jan 3 '12 at 12:39
...
Blocks on Swift (animateWithDuration:animations:completion:)
...lf.blurBg.alpha = 1
}, completion: {
(value: Bool) in
self.blurBg.hidden = true
})
The important part here is the (value: Bool) in. That tells the compiler that this closure takes a Bool labeled 'value' and returns void.
For reference, if you wanted to write a closure that returned a bool...
How to run a background task in a servlet based web application?
...@Schedule(hour="0", minute="0", second="0", persistent=false)
public void someDailyJob() {
// Do your job here which should run every start of day.
}
@Schedule(hour="*/1", minute="0", second="0", persistent=false)
public void someHourlyJob() {
// Do your job here whi...
DateTime vs DateTimeOffset
...ar timeline, pointing a camera at a person on the instantaneous timeline laid out in front of you. You line up your camera according to the rules of your timezone - which change periodically due to daylight saving time, or due to other changes to the legal definition of your time zone. (You don't ...
How to set a Timer in Java?
... run the task once you would do:
timer.schedule(new TimerTask() {
@Override
public void run() {
// Your database code here
}
}, 2*60*1000);
// Since Java-8
timer.schedule(() -> /* your database code here */, 2*60*1000);
To have the task repeat after the duration you would do:
timer....
Difference between __str__ and __repr__?
...ou always want to use repr() [or %r formatting character, equivalently] inside __repr__ implementation, or you’re defeating the goal of repr. You want to be able to differentiate MyClass(3) and MyClass("3").
The goal of __str__ is to be readable
Specifically, it is not intended to be unambiguous...
How do I terminate a thread in C++11?
... and good understanding of the multithreading concepts in general will provide you insight about this topic. In fact there is no any language or any operating system which provide you facilities for asynchronous abruptly thread termination without warning to not use them. And all these execution env...
Zoom in on a point (using scale and translate)
...ved it:
var zoomIntensity = 0.2;
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
var width = 600;
var height = 200;
var scale = 1;
var originx = 0;
var originy = 0;
var visibleWidth = width;
var visibleHeight = height;
function draw(){
...