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C++: Rounding up to the nearest multiple of a number
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answered Aug 4 '10 at 15:44
Mark RansomMark Ransom
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How to sign an android apk file
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84
The manual is clear enough. Please specify what part you get stuck with after you work through i...
mongo - couldn't connect to server 127.0.0.1:27017
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49
This error is what you would see if the mongo shell was not able to talk to the mongod server.
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How to validate phone numbers using regex
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42 Answers
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Passing a std::array of unknown size to a function
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Andy ProwlAndy Prowl
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How to initialize an array in one step using Ruby?
....8.7+ to create arrays; for example:
array = 1.step(17,3).to_a
#=> [1, 4, 7, 10, 13, 16]
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Node.js Best Practice Exception Handling
... // no error occured, continue on
return x/y
}
}
// Divide 4/2
var result = divideSync(4,2)
// did an error occur?
if ( result instanceof Error ) {
// handle the error safely
console.log('4/2=err', result)
}
else {
// no error occured, continue on
console.log('4/2='+r...
When to use ' (or quote) in Lisp?
...g like this (slightly prettyfied):
'((allocate 3)
(allocate 7)
(free 14)
(allocate 19)
...)
Remember what I said about quote ("tick") causing the default rule not to apply? Good. What would otherwise happen is that the values of allocate and free are looked up, and we don't want that. In...
What's wrong with overridable method calls in constructors?
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478
On invoking overridable method from constructors
Simply put, this is wrong because it unneces...
A Regex that will never be matched by anything
...nd only then not find the "a" and return a negative match. I see it take ~480ms to scan a ~275k line file. The converse "a^" takes about the same time, even if it might seem more efficient. On the other hand, a negative lookahead need not scan anything: "(?!x)x" (anything not followed by an x als...