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String comparison in Python: is vs. == [duplicate]

... @Mike: x is x is always True. But that does not imply x == x. NaN is defined as not equal to itself. – dan04 Jun 7 '10 at 13:12 3 ...
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How to create the perfect OOP application [closed]

...ame which is a String An Item has a Shelf Price which is a Decimal. (Note: does an item really have a price? two identical washing machines might be for sale for different prices at different stores, or at the same store at different times. A better design might be to say that a Pricing Policy relat...
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Why does GCC generate such radically different assembly for nearly the same C code?

... which is pretty much exactly what GCC generates in the assembly. So why doesn't the compiler optimize fast_trunc_two() to the same thing? The key part in fast_trunc_one() is the x + (y ^ x) = y optimization. In fast_trunc_two() the x + (y ^ x) expression is being split across the branch. I suspec...
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Convert String to Float in Swift

...ext into your input field (12p.34, or even 12.12.41). Obviously, if Apple does add a floatValue to Swift this will throw an exception, but it may be nice in the mean time. If they do add it later, then all you need to do to modify your code is remove the extension and everything will work seamlessl...
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What is the advantage of using abstract classes instead of traits?

... The second difference doesn't exist in Java8, think. – Duong Nguyen Jun 23 '16 at 3:22 14 ...
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Meteor test driven development [closed]

...as well. Be sure to place your tests in the "tests" folder so that Meteor does not attempt to execute your tests. Mocha supports CoffeeScript, my choice of scripting language for Meteor projects. Here's a sample Cakefile with tasks for running your Mocha tests. If you are using JS with Meteor, fee...
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How to construct a std::string from a std::vector?

... With C++11, you can do std::string(v.data()) or, if your vector does not contain a '\0' at the end, std::string(v.data(), v.size()). share | improve this answer | ...
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HTML Entity Decode [duplicate]

... its good but doesn't allways work it works within a div tag but for example if you type in some php or css without the html it lets it through – Paul Ledger Dec 10 '13 at 23:53 ...
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Print current call stack from a method in Python code

...hing here, but you call f which it's only purpose is here is to call g and does nothing else. Why – Chris Apr 27 '17 at 3:37 6 ...
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html (+css): denoting a preferred place for a line break

... @Lodewijk: <wbr> does not indicate a preferred place to break the line, but a possible one. – Dan Dascalescu Jul 9 '15 at 3:52 ...