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~x + ~y == ~(x + y) is always false?
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Assume for the sake of contradiction that there exists some x and some y (mod 2n) such that
~(x+y) == ~x + ~y
By two's complement*, we know that,
-x == ~x + 1
<==> -1 == ~x + x
Noting this result, we have,
~(x+y) == ...
Why does Stream not implement Iterable?
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People have already asked the same on the mailing list ☺. The main reason is Iterable also has a re-iterable semantic, while Stream is not.
I think the main reason is that Iterable implies reusability, whereas Stream is something that can on...
Can I add jars to maven 2 build classpath without installing them?
Maven2 is driving me crazy during the experimentation / quick and dirty mock-up phase of development.
24 Answers
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Are there good reasons not to use an ORM? [closed]
...coders in the development team are much more experienced than me, so I think I will just do what they say. :-)
20 Answers
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How can I convert the “arguments” object to an array in JavaScript?
The arguments object in JavaScript is an odd wart—it acts just like an array in most situations, but it's not actually an array object. Since it's really something else entirely , it doesn't have the useful functions from Array.prototype like forEach , sort , filter , and map .
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what is the difference between GROUP BY and ORDER BY in sql
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This statement makes virtually no sense without an accompanying example.
– JohnMerlino
Aug 7 '14 at 19:43
2
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Semantic Diff Utilities [closed]
...rge utilities. The traditional paradigm of comparing source code files works by comparing lines and characters.. but are there any utilities out there (for any language) that actually consider the structure of code when comparing files?
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Why are exclamation marks used in Ruby methods?
In Ruby some methods have a question mark ( ? ) that ask a question like include? that ask if the object in question is included, this then returns a true/false.
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How does a Breadth-First Search work when looking for Shortest Path?
...e small part of this algorithm. I understand how a Breadth-First Search works, but I don't understand how exactly it will get me to a specific path, as opposed to just telling me where each individual node can go. I guess the easiest way to explain my confusion is to provide an example:
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Can I convert a C# string value to an escaped string literal
...tring value to a string literal, the way I would see it in code? I would like to replace tabs, newlines, etc. with their escape sequences.
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