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How do I use NSTimer?
... lists guides for the topic being documented (if any exist). For example, with NSTimer, the documentation lists two companion guides:
Timer Programming Topics for Cocoa
Threading Programming Guide
For your situation, the Timer Programming Topics article is likely to be the most useful, whilst th...
Delegates in swift?
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It is not that different from obj-c.
First, you have to specify the protocol in your class declaration, like following:
class MyClass: NSUserNotificationCenterDelegate
The implementation will look like following:
// NSUse...
Try catch statements in C
.../catch blocks existent in another languages. Googled for a while this but with no result. From what I know, there is not such a thing as try/catch in C. However, is there a way to "simulate" them?
Sure, there is assert and other tricks but nothing like try/catch, that also catch the raised excepti...
Why always ./configure; make; make install; as 3 separate steps?
...his script has lots of options that you should change. Like --prefix or --with-dir=/foo. That means every system has a different configuration. Also ./configure checks for missing libraries that should be installed. Anything wrong here causes not to build your application. That's why distros have pa...
Disable cache for some images
...ser no caching can be performed.
The random number generation can happen either on the server when serving the page (just make sure the page itself isn't cached...), or on the client (using JavaScript).
You will need to verify whether your web-server can cope with this trick.
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What causes “Unable to access jarfile” error?
I want to execute my program without using an IDE.
I've created a jar file and an exectuable jar file. When
I double click the exe jar file, nothing happens, and when I try to use the command in cmd it gives me this:
...
What is the difference between “int” and “uint” / “long” and “ulong”?
I know about int and long (32-bit and 64-bit numbers), but what are uint and ulong ?
5 Answers
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How do I parse a string with a decimal point to a double?
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if converting 12345678.12345678, it converts too 12345678.123457
– PUG
Dec 2 '11 at 16:18
5
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What is the difference between . (dot) and $ (dollar sign)?
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The $ operator is for avoiding parentheses. Anything appearing after it will take precedence over anything that comes before.
For example, let's say you've got a line that reads:
putStrLn (show (1 + 1))
If you want to get rid of those parentheses, any of the following lines would also do t...
Converting many 'if else' statements to a cleaner approach [duplicate]
My code here detects if the mimeType is equals to some MIME type, if it is, it will do a certain conversion
7 Answers
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