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C++ : why bool is 8 bits long?

...can't. But you can create a pointer to a byte. So a boolean in C++ is typically byte-sized. (It may be larger as well. That's up to the implementation. The main thing is that it must be addressable, so no C++ datatype can be smaller than a byte) ...
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How can I update NodeJS and NPM to the next versions?

I just installed Node.js and npm (for additional modules). 47 Answers 47 ...
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How to add a button to PreferenceScreen

...istView in your layout and give it the ID @android:id/list. Let's say we call the layout file res/layout/main.xml. It could look something like this: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layou...
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Is !important bad for performance?

... It shouldn't have any effect upon the performance really. Seeing firefox's CSS parser at /source/layout/style/nsCSSDataBlock.cpp#572 and I think that is the relevant routine, handling overwriting of CSS rules. it just seems to be an simple check for "important". if (aIsImp...
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How to get the URL without any parameters in JavaScript?

... This is possible, but you'll have to build it manually from the location object: location.protocol + '//' + location.host + location.pathname share | improve this answer ...
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Java: How to test methods that call System.exit()?

I've got a few methods that should call System.exit() on certain inputs. Unfortunately, testing these cases causes JUnit to terminate! Putting the method calls in a new Thread doesn't seem to help, since System.exit() terminates the JVM, not just the current thread. Are there any common patterns...
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How to add one day to a date? [duplicate]

... All solutions support negative offsets, even with their negative counterparts, so instead of plusDays(1) one could also use minusDays(-1). – Daniel Rikowski May 31 '17 at 9:00 ...
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How to call function of one php file from another php file and pass parameters to it?

I want to call a function in one PHP file from a second PHP file and also pass two parameters to that function. How can I do this? ...
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What is duck typing?

...ot that well defined. Neither is Duck Typing. Google Go or Ocaml are statically typed languages with a structural subtyping-construction. Are these duck typed languages? – I GIVE CRAP ANSWERS Nov 17 '10 at 15:27 ...
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What is compiler, linker, loader?

...'space', 'tab' and 'new line'. Therefore this unit of compilation is also called "TOKENIZER". It also removes the comments, generates symbol table and relocation table entries. 2) Syntactic Analyzer: This unit check for the syntax in the code. For ex: { int a; int b; int c; int d...