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What does inverse_of do? What SQL does it generate?
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After this pr (https://github.com/rails/rails/pull/9522) inverse_of is not required in most cases.
Active Record supports automatic identification for most associations with standard names. However, Active Record will not automatically ide...
Creating a blocking Queue in .NET?
I have a scenario where I have multiple threads adding to a queue and multiple threads reading from the same queue. If the queue reaches a specific size all threads that are filling the queue will be blocked on add until an item is removed from the queue.
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How do I get a class instance of generic type T?
I have a generics class, Foo<T> . In a method of Foo , I want to get the class instance of type T , but I just can't call T.class .
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Colorizing text in the console with C++
How can I write colored text to the console with C++? That is, how can I write different text with different colors?
12 Ans...
What is an existential type?
I read through the Wikipedia article Existential types . I gathered that they're called existential types because of the existential operator (∃). I'm not sure what the point of it is, though. What's the difference between
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C++ templates that accept only certain types
In Java you can define generic class that accept only types that extends class of your choice, eg:
14 Answers
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Logging errors in ASP.NET MVC
... Ignoring 404 didn't work for me the way you wrote it. I wrote if (ex is HttpException && ((HttpException)ex).GetHttpCode() == 404) return;
– pauloya
Jul 18 '11 at 10:15
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static const vs #define
...ess.
You might want to take a look at the C++ FAQ Lite for this question:
http://www.parashift.com/c++-faq-lite/newbie.html#faq-29.7
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Similarity String Comparison in Java
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// Example implementation of the Levenshtein Edit Distance
// See http://rosettacode.org/wiki/Levenshtein_distance#Java
public static int editDistance(String s1, String s2) {
s1 = s1.toLowerCase();
s2 = s2.toLowerCase();
int[] costs = new int[s2.length() + 1];
for (int i ...
Is it unnecessary to put super() in constructor?
...matically calls it for you. If it has arguments you'll get an error.
src: http://java.sun.com/docs/books/tutorial/java/IandI/super.html
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