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What's the difference between a Future and a Promise?
...ise has finally been called CompletableFuture for inclusion in Java 8, and its javadoc explains:
A Future that may be explicitly completed (setting its value and status), and may be used as a CompletionStage, supporting dependent functions and actions that trigger upon its completion.
An exa...
Tools to make CSS sprites? [closed]
Are there any good tools to make css sprites?
21 Answers
21
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stringstream, string, and char* conversion confusion
...g returned from stringstream.str().c_str() live in memory, and why can't it be assigned to a const char* ?
5 Answers
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What are the use cases for selecting CHAR over VARCHAR in SQL?
...R (or NVARCHAR) when the length varies significantly. CHAR may also be a bit faster because all the rows are of the same length.
It varies by DB implementation, but generally, VARCHAR (or NVARCHAR) uses one or two more bytes of storage (for length or termination) in addition to the actual data. So...
hasNext in Python iterators?
Haven't Python iterators got a hasNext method?
13 Answers
13
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
If I have some integer n, and I want to know the position of the most significant bit (that is, if the least significant bit is on the right, I want to know the position of the furthest left bit that is a 1), what is the quickest/most efficient method of finding out?
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Different ways of adding to Dictionary
...his.Insert(key, value, true);
}
I won't post the entire Insert method as it's rather long, however the method declaration is this:
private void Insert(TKey key, TValue value, bool add)
And further down in the function, this happens:
if ((this.entries[i].hashCode == num) && this.compare...
Best practice for embedding arbitrary JSON in the DOM?
I'm thinking about embedding arbitrary JSON in the DOM like this:
7 Answers
7
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What are the basic rules and idioms for operator overloading?
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Most of the work in overloading operators is boiler-plate code. That is little wonder, since operators are merely syntactic sugar, their actual work could be done by (and often is forwarded to) plain functions. But it is important that you get this boiler-plate code right. If you fail, either your...
Best Practice for Forcing Garbage Collection in C#
In my experience it seems that most people will tell you that it is unwise to force a garbage collection but in some cases where you are working with large objects that don't always get collected in the 0 generation but where memory is an issue, is it ok to force the collect? Is there a best practi...