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Why use bzero over memset?
...be used if you want to ensure the compiler doesn't quietly optimize-away a call to "scrub" memory for some security-related purpose (such as blanking-out a region of memory that contained a sensitive piece of information such as a cleartext password).
– Christopher Schultz
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Passing an array to a function with variable number of args in Swift
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Is Splatting in the language yet? I'm trying to call sumOf(...numbers)
– Noitidart
May 15 '19 at 11:24
1
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AngularJS : Clear $watch
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$watch returns a deregistration function. Calling it would deregister the $watcher.
var listener = $scope.$watch("quartz", function () {});
// ...
listener(); // Would clear the watch
share...
No Exception while type casting with a null in java
...or not. If null then it simply prints the string "null". Otherwise it will call the toString method of that object.
Adding more details: Internally print methods call String.valueOf(object) method on the input object. And in valueOf method, this check helps to avoid null pointer exception:
return ...
How to trigger Autofill in Google Chrome?
... difficult for webmasters to ensure that Chrome and other form-filling providers can parse their form correctly. Some standards exist; but they put onerous burdens on the implementation of the website, so they’re not used much in practice.
(The "standards" they refer to is a more recent verion o...
How do the Proxy, Decorator, Adapter, and Bridge Patterns differ?
... when you want to lazy-instantiate an object, or hide the fact that you're calling a remote service, or control access to the object.
Decorator is also called "Smart Proxy." This is used when you want to add functionality to an object, but not by extending that object's type. This allows you to do...
Changing Locale within the app itself
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Is you preference activity being called from you main activity? you could place this in the on resume... @Override protected void onResume() { if (!(PreferenceManager.getDefaultSharedPreferences( getApplicationContext()).getString("listLanguage", "en") ...
Returning value from Thread
... // value[0] holds 2 at this point.
}
You can also use an Executor and a Callable like this:
public void test() throws InterruptedException, ExecutionException
{
ExecutorService executor = Executors.newSingleThreadExecutor();
Callable<Integer> callable = new Callable<Integer&g...
How to print the full traceback without halting the program?
....will display the traceback of the last exception:
Traceback (most recent call last):
File "e.py", line 7, in <module>
raise TypeError("Again !?!")
TypeError: Again !?!
If you really need to access the original traceback one solution is to cache the exception infos as returned from ex...
In C, do braces act as a stack frame?
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In C++, an object's destructor gets called at the end of its scope. Whether the memory gets reclaimed is an implementation-specific issue.
– Kristopher Johnson
May 3 '10 at 16:07
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