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What is time_t ultimately a typedef to?

... to migrate your code. Your data will be fine if you store your data as a string, even if it's something simple like: FILE *stream = [stream file pointer that you've opened correctly]; fprintf (stream, "%d\n", (int)time_t); Then just read it back the same way (fread, fscanf, etc. into an int), a...
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Why can I change value of a constant in javascript

I know that ES6 is not standardized yet, but a lot of browsers currently support const keyword in JS. 7 Answers ...
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Performance of foreach, array_map with lambda and array_map with static function

...2 compare with mcfedr's answer below for additional results without XDebug and a more recent PHP version. function lap($func) { $t0 = microtime(1); $numbers = range(0, 1000000); $ret = $func($numbers); $t1 = microtime(1); return array($t1 - $t0, $ret); } function useForeach($numbers) {...
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jQuery checkbox checked state changed event

... I've used this.checked instead of wrapping the element in a jQuery object and using jQuery methods, simply because it's shorter and faster to access the property of the DOM element directly. Edit (see comments) To get all checkboxes you have a couple of options. You can use the :checkbox pseudo-s...
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How do you declare an interface in C++?

...e virtual method }; class Tester : public IBase { public: Tester(std::string name); virtual ~Tester(); virtual void Describe(); private: std::string privatename; }; Tester::Tester(std::string name) { std::cout << "Tester constructor" << std::endl; this->priva...
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ORA-30926: unable to get a stable set of rows in the source tables

...cified in USING clause. This probably means that TABLE_A is a parent table and the same ROWID is returned several times. You could quickly solve the problem by using a DISTINCT in your query (in fact, if 'Y' is a constant value you don't even need to put it in the query). Assuming your query is co...
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Find the min/max element of an Array in JavaScript

...ES7 or ES8 spec Array.max and Array.min. Unlike this version, they work on strings. Your future colleague tries to get the alphabetically-latest string in an array with the now-well-documented native .max() method, but mysteriously gets NaN. Hours later, she finds this code, runs a git blame, and cu...
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Fast way of finding lines in one file that are not in another?

... index by lineno (NR!=FNR) { ss2[$0]++; } # file2, index by string END { for (ll=1; ll<=nl1; ll++) if (!(ll1[ll] in ss2)) print ll1[ll] } This stores the entire contents of file1 line by line in a line-number indexed array ll1[], and the entire contents of file2 line by line ...
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How can i tell if an object has a key value observer attached

if you tell an objective c object to removeObservers: for a key path and that key path has not been registered, it cracks the sads. like - ...
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Authenticate Jenkins CI for Github private repository

...h that task.. Tried the documentation, generating ssh-key for jenkins user and all what I can see is: "unable to clone the repo". I've checked URLs - they are valid. ...