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Replace all non-alphanumeric characters in a string
I have a string with which i want to replace any character that isn't a standard character or number such as (a-z or 0-9) with an asterisk. For example, "h^&ell`.,|o w]{+orld" is replaced with "h*ell*o*w*orld". Note that multiple characters such as "^&" get replaced with one asterisk. How would I go...
What is a good Hash Function?
What is a good Hash function? I saw a lot of hash function and applications in my data structures courses in college, but I mostly got that it's pretty hard to make a good hash function. As a rule of thumb to avoid collisions my professor said that:
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Graph Algorithm To Find All Connections Between Two Arbitrary Vertices
I am trying to determine the best time efficient algorithm to accomplish the task described below.
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Practical usage of setjmp and longjmp in C
Can anyone explain me where exactly setjmp() and longjmp() functions can be used practically in embedded programming? I know that these are for error handling. But I'd like to know some use cases.
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@import vs #import - iOS 7
I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in the WWDC video "Implementing Engaging UI on iOS". For producing a blur effect within the source code for the session, UIImage was extended via a category which imports UIKit like so:
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Separating class code into a header and cpp file
I am confused on how to separate implementation and declarations code of a simple class into a new header and cpp file. For example, how would I separate the code for the following class?
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iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
I was just wondering with how should we deal with the iPhone 5 bigger screen size.
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Converting a UNIX Timestamp to Formatted Date String
Using PHP, I want to convert UNIX timestamps to date strings similar to this: 2008-07-17T09:24:17Z
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Why JSF calls getters multiple times
Let's say I specify an outputText component like this:
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How can Xcode 6 adaptive UIs be backwards-compatible with iOS 7 and iOS 6?
I just watched the WWDC video #216, "Building Adaptive UI with UIKit."
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