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Caveats of select/poll vs. epoll reactors in Twisted

...o based apps ) leads me to believe that ePoll is a natural replacement for Select and Poll based networking, especially with Twisted. Which makes me paranoid, its pretty rare for a better technique or methodology not to come with a price. ...
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Regexp Java for password validation

...per case letter must occur at least once (?=.*[@#$%^&+=]) # a special character must occur at least once (?=\S+$) # no whitespace allowed in the entire string .{8,} # anything, at least eight places though $ # end-of-string It's easy to add, modify or remo...
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Why can't Python's raw string literals end with a single backslash?

...string; for example, r"\"" is a valid string literal consisting of two characters: a backslash and a double quote; r"\" is not a valid string literal (even a raw string cannot end in an odd number of backslashes). Specifically, a raw string cannot end in a single backslash (since the ...
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WAMP shows error 'MSVCR100.dll' is missing when install

...s://www.microsoft.com/en-us/download/details.aspx?id=30679 There you can select the x86 or x64 version depending on your system This article on the WampServer forums shows all the Microsoft Visual C++ runtime libraries you need to have installed on your system for each version of WampServer. To ...
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What is the difference between precision and scale?

...on. e.g: Precision 4, scale 2 - will fail any number > 99.9999..; try: select cast (99.99999 as NUMBER(4,2)) from dual; //OK; select cast (100.9 as NUMBER(4,2)) from dual; //FAIL; – Jama Djafarov Mar 6 '15 at 17:47 ...
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Trusting all certificates using HttpClient over HTTPS

...ersion(params, HttpVersion.HTTP_1_1); HttpProtocolParams.setContentCharset(params, HTTP.UTF_8); SchemeRegistry registry = new SchemeRegistry(); registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80)); registry.register(new Scheme("https", sf,...
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Using Regex to generate Strings rather than match them

... I am not sure Xeger is that good. It cannot handle character classes. It fails to recognize a simple [\w]. A look at the last line of their wiki tells us that. – John Red Feb 13 '17 at 12:38 ...
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Is a statically-typed full Lisp variant possible?

...which is nothing new in Typed Racked (same deal as a function that takes a union type of String and Number). An implicit way to see that this can be done is the fact that you can write and use a dynamically typed language in an HM-statically-typed language. – Eli Barzilay ...
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Declaration/definition of variables locations in ObjectiveC?

...#import "Cow.h" #import <Foundation/Foundation.h> int main(int argc, char *argv[]) { @autoreleasepool { Cow *cow = [Cow new]; [cow performSelector:@selector(blindAccess)]; } } This prints iMadeVisible iMadeVisible2 iMadeVisible3 Note that I was able to access the...
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Switch on Enum in Java [duplicate]

...t code. Also this question could apply to String 's. You can switch on a char , but not a String ...? 6 Answers ...