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Need to understand the usage of SemaphoreSlim
...sk that will be completed when that thread has been given "access" to that token. await-ing that task lets the program continue execution when it is "allowed" to do so. Having an asynchronous version, rather than calling Wait, is important both to ensure that the method stays asynchronous, rather ...
Redis: Show database size/size for keys
...ue require to be stored in RAM.
The reported usage is the total of memory allocations for data and administrative overheads that a key its value require
(source redis documentation)
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
...st make sure your pointers are still valid after the delay (ie. no objects allocated on stack).
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Unable to execute dex: GC overhead limit exceeded in Eclipse
... than about 1500M (on Linux) or 1100M (on Windows) because the VM needs to allocate contiguous address space, and that's a very limited resource for 32-bit apps.
– Jules
May 12 '14 at 4:07
...
Static constant string (class member)
...lation unit only
const char A::RECTANGLE[] = "rectangle";
There! No heap allocation, no copying, no dynamic initialization.
Cheers, s.
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Sending HTTP POST Request In Java
....encode( rawData, "UTF-8" );
URL u = new URL("http://www.example.com/page.php");
HttpURLConnection conn = (HttpURLConnection) u.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty( "Content-Type", type );
conn.setRequestProperty( "Content-Length", String...
How can I initialize base class member variables in derived class constructor?
...onstructor. It will first be default-initialized when the instance of B is allocated, then it will be assigned inside the B's constructor. But I also think the compiler can still optimize this.
– Violet Giraffe
Jan 10 '19 at 11:36
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How do I apply the for-each loop to every character in a String?
...cost penalty.
From the documentation:
[toCharArray() returns] a newly allocated character array whose length is the length of this string and whose contents are initialized to contain the character sequence represented by this string.
There are more verbose ways of iterating over characters i...
How to show math equations in general github's markdown(not github's blog)
...e following markdown syntax
it will display the following image
equation http://www.sciweavers.org/tex2img.php?eq=1%2Bsin%28mc%5E2%29&bc=White&fc...
How to disable typing special characters when pressing option key in Mac OS X? [closed]
...is to download Ukulele from here:
http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=ukelele
In the application you can create a new keylayout using File -> New from current source. Pressing Option will show you in the place for Option-b a red colored key - meaning it's a dead key....