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What is the difference between sigaction and signal?
...serious use. Note that the POSIX standard says their behaviour in multi-threaded programs is undefined.
Multi-threaded programs and signals is a whole other complicated story. AFAIK, both signal() and sigaction() are OK in multi-threaded applications.
Cornstalks observes:
The Linux man page for s...
Why em instead of px?
... you are confusing pixels with the px unit. They are not the same thing - read the CSS specs. The px unit is an absolute unit in the same sense as the in unit, or the cm unit, or the pt unit.
– thomasrutter
Nov 13 '14 at 11:04
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How to “warm-up” Entity Framework? When does it get “cold”?
...ou can do some of the initialization asynchronously (but beware of multi-threading issues). You can use scheduled tasks that call dummy pages in your application during times when there are no requests to prevent the AppDomain from dying, but it will eventually.
I also assume when you change your c...
Simple explanation of MapReduce?
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First time, three answers combined is the BEST answer. Read first Nasser's article link (theoretical hi-level) Then chakrit's answer (individual explanation of map-reduce) Now Frank's answer (What is the famous MapReduce idiom.) Thanks to you three . :)
– A...
Can a class member function template be virtual?
... troublesome, probably requiring recreating vtables for objects that are already in memory!
– CygnusX1
Jul 8 at 10:21
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Using HTML5/Canvas/JavaScript to take in-browser screenshots
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JavaScript can read the DOM and render a fairly accurate representation of that using canvas. I have been working on a script which converts HTML into a canvas image. Decided today to make an implementation of it into sending feedbacks like...
What's the difference between faking, mocking, and stubbing?
... only be done by asserting against the fake) as much as possible.
For fun reading on why you should avoid mocks as defined here, google for "fowler mockist classicist". You'll find a plethora of opinions.
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How to determine if a number is a prime with regex?
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The comment below gives better explanation. Please read it before you move on!
– Ivan Davidov
Sep 26 '15 at 21:54
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What is the purpose of Rank2Types?
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Do not functions in Haskell already support polymorphic arguments?
They do, but only of rank 1. This means that while you can write a function that takes different types of arguments without this extension, you can't write a function that uses its argum...
What is the difference between JSON and Object Literal Notation?
...n be stored in many ways, but if it should be stored in a text file and be readable by a computer, it needs to follow some structure. JSON is one of the many formats that define such a structure.
Such formats are typically language-independent, meaning they can be processed by Java, Python, JavaScr...