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Pointers, smart pointers or shared pointers? [duplicate]
...tlined the types fairly well:
Normal pointers are just that - they point to some thing in memory somewhere. Who owns it? Only the comments will let you know. Who frees it? Hopefully the owner at some point.
Smart pointers are a blanket term that cover many types; I'll assume you meant scoped point...
How to capture UIView to UIImage without loss of quality on retina display
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Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions (as documented on this page). Pass 0.0 for scale (the third argument) and you'll get a context with a scale factor equal to that of the screen.
UIGraphicsBeginImageContext uses a fix...
How to measure elapsed time in Python?
What I want is to start counting time somewhere in my code and then get the passed time, to measure the time it took to execute few function. I think I'm using the timeit module wrong, but the docs are just confusing for me.
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How to run a Runnable thread in Android at defined intervals?
I developed an application to display some text at defined intervals in the Android emulator screen. I am using the Handler class. Here is a snippet from my code:
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Android search with Fragments
Does somebody know of a tutorial or an example of how to implement the standard Android search interface with Fragment s? In other words, is it possible to put a standard search with a SearchManager in a Fragment?
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How to call another controller Action From a controller in Mvc
I need to call a controller B action FileUploadMsgView from Controller A and need to pass a parameter for it.
10 Answers
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Rails Observer Alternatives for 4.0
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Take a look at Concerns
Create a folder in your models directory called concerns. Add a module there:
module MyConcernModule
extend ActiveSupport::Concern
included do
after_save :do_something
end
def do_something
...
end
end
Next, include that in the models you...
How does lock work exactly?
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The lock statement is translated by C# 3.0 to the following:
var temp = obj;
Monitor.Enter(temp);
try
{
// body
}
finally
{
Monitor.Exit(temp);
}
In C# 4.0 this has changed and it is now generated as follows:
bool lockWasTaken = false;
var temp = obj;
tr...
How to check internet access on Android? InetAddress never times out
I got a AsyncTask that is supposed to check the network access to a host name. But the doInBackground() is never timed out. Anyone have a clue?
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Are there any smart cases of runtime code modification?
...at run time can be useful for:
Some virtual machines use JIT compilation to improve performance.
Generating specialized functions on the fly has long been common in computer graphics. See e.g. Rob Pike and Bart Locanthi and John Reiser Hardware Software Tradeoffs for Bitmap Graphics on the Blit (1...