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How can I verify if one list is a subset of another?

...a set (so much so that before we had sets in Python we used dictionaries). One wonders how the issue got less specific in three hours. share | improve this answer | follow ...
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Standard alternative to GCC's ##__VA_ARGS__ trick?

...eceived no response whatsoever from the committee; I don't even know if anyone read it. In 2016 it was proposed again in N2023, and I encourage anyone who knows how that proposal is going to let us know in the comments. sha...
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Best way to create enum of strings?

.../** * @author The Elite Gentleman * */ public enum Strings { STRING_ONE("ONE"), STRING_TWO("TWO") ; private final String text; /** * @param text */ Strings(final String text) { this.text = text; } /* (non-Javadoc) * @see java.lang.Enum#toS...
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Generate an integer that is not among four billion given ones

...put file with any given 16-bit prefix, for all possible 16-bit prefixes in one pass through the input file. At least one of the buckets will have be hit less than 216 times. Do a second pass to find of which of the possible numbers in that bucket are used already. If it means more than 32 bits, but...
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How does the bitwise complement operator (~ tilde) work?

...ion of a number, taking its complement (inverting all the bits) and adding one. Two starts as 0000 0010, and by inverting the bits we get 1111 1101. Adding one gets us the result above. The first bit is the sign bit, implying a negative. So let's take a look at how we get ~2 = -3: Here's two again: ...
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How to remove a key from Hash and get the remaining hash in Ruby/Rails?

... Oneliner plain ruby, it works only with ruby > 1.9.x: 1.9.3p0 :002 > h = {:a => 1, :b => 2} => {:a=>1, :b=>2} 1.9.3p0 :003 > h.tap { |hs| hs.delete(:a) } => {:b=>2} Tap method always retur...
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is there a css hack for safari only NOT chrome?

... (MacBook/IPad/etc... with both browser and OS version numbers!) Claiming none of these work is not accurate (and actually not even possible.) Many of these are not really 'hacks' but code built into versions of Safari by Apple. More info is needed. I love the fact that you came here, and really wan...
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Java: notify() vs. notifyAll() all over again

If one Googles for "difference between notify() and notifyAll() " then a lot of explanations will pop up (leaving apart the javadoc paragraphs). It all boils down to the number of waiting threads being waken up: one in notify() and all in notifyAll() . ...
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View more than one project/solution in Visual Studio

... This is the way Visual Studio is designed: One solution, one Visual Studio (VS) instance. Besides switching between solutions in one VS instance, you can also open another VS instance and open your other solution with that one. Next to solutions there are as you said...
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i18n Pluralization

... Try this: en.yml : en: misc: kids: zero: no kids one: 1 kid other: %{count} kids In a view: You have <%= t('misc.kids', :count => 4) %> Updated answer for languages with multiple pluralization (tested with Rails 3.0.7): File config/initializers/plural...