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Apache Prefork vs Worker MPM
Looking at the Apache config file, I see Prefork and Worker MPM defined. What is the difference and which one is Apache using?
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Mapping two integers to one, in a unique and deterministic way
Imagine two positive integers A and B. I want to combine these two into a single integer C.
18 Answers
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Type Checking: typeof, GetType, or is?
...y_a_dog = new Dog();
Foo(probably_a_dog); // this calls Foo<Animal> and returns "Animal"
Foo<Animal>(probably_a_dog); // this is exactly the same as above
Foo<Dog>(probably_a_dog); // !!! This will not compile. The parameter expects a Dog, you cannot pass in an Animal.
Foo(defini...
What is tail call optimization?
... space as (fact 3). This is not the case with the non-tail-recursive fact, and as such large values may cause a stack overflow.
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Make a div into a link
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For me the no-nos are: javascript (shouldn't be needed just for a link, and very bad SEO/accessibility); invalid HTML.
In essence it's this:
Build your panel using normal CSS techniques and valid HTML.
Somewhere in there put a link that you want to be the default link if the user clicks on th...
Where do “pure virtual function call” crashes come from?
...e general case can't catch it since the flow from the ctor can go anywhere and anywhere can call the pure virtual function. This is Halting problem 101.
– shoosh
Sep 19 '08 at 4:20
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Changing variable names in Vim
I am using Vim to read through a lot of C and Perl code containing many single letter variable names.
7 Answers
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How to add a vertical Separator?
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Works perfectly well in both horizontal and vertical Menu between MenuItems as well. Always nicely stretches to match the height/width of the menu.
– natiiix
Aug 6 at 18:05
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Run a Java Application as a Service on Linux
I have written a Java server application that runs on a standard virtual hosted Linux solution. The application runs all the time listening for socket connections and creating new handlers for them. It is a server side implementation to a client-server application.
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Comparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc)
...w, there are three JSON Parsers for Objective-C, JSON Framework , YAJL , and Touch JSON . Then, These three would have their own characteristics.
For example:
YAJL can be used as a SAX style parser.
JSON Framework has relatively long history and is widely used.
Touch JSON parses NSData...