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Is unsigned integer subtraction defined behavior?
I have come across code from someone who appears to believe there is a problem subtracting an unsigned integer from another integer of the same type when the result would be negative. So that code like this would be incorrect even if it happens to work on most architectures.
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Representing and solving a maze given an image
What is the best way to represent and solve a maze given an image?
10 Answers
10
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John Carmack's Unusual Fast Inverse Square Root (Quake III)
John Carmack has a special function in the Quake III source code which calculates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why t...
Why was the arguments.callee.caller property deprecated in JavaScript?
Why was the arguments.callee.caller property deprecated in JavaScript?
4 Answers
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What is the difference between JDK dynamic proxy and CGLib?
...e of the Proxy Design Pattern , What is the difference between JDK's Dynamic Proxy and third party dynamic code generation API s such as CGLib ?
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Difference between Observer, Pub/Sub, and Data Binding
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Here's my take on the three:
Data Binding
Essentially, at the core this just means "the value of property X on object Y is semantically bound to the value of property A on object B. No assumptions are made as to how Y knows or is ...
npm windows install globally results in npm ERR! extraneous
I am new to grunt and npm. So I am trying some "cookbook-example" on the site ' http://tech.pro/tutorial/1190/package-managers-an-introductory-guide-for-the-uninitiated-front-end-developer#front_end_developers '.
You should not have to look there now, but I thought it could be good to share the site...
Why does the C# compiler not fault code where a static method calls an instance method?
The following code has a static method, Foo() , calling an instance method, Bar() :
3 Answers
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Referencing a string in a string array resource with xml
I have preferences where you can enable/disable what items will show up on the menu. There are 17 items. I made a string array in values/arrays.xml with titles for each of these 17 items.
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What is Model in ModelAndView from Spring MVC?
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The model presents a placeholder to hold the information you want to display on the view. It could be a string, which is in your above example, or it could be an object containing bunch of properties.
Example 1
If you have...
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