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Why is it wrong to use std::auto_ptr with standard containers?

...ed or copied and the two elements are logically independent. std::auto_ptr does not fulfill this requirement. Take for example this code: class X { }; std::vector<std::auto_ptr<X> > vecX; vecX.push_back(new X); std::auto_ptr<X> pX = vecX[0]; // vecX[0] is assigned NULL. To o...
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How can I count text lines inside an DOM element? Can I?

...escription) then you can retrieve the div's height using: var divHeight = document.getElementById('content').offsetHeight; And divide by the font line height: document.getElementById('content').style.lineHeight; Or to get the line height if it hasn't been explicitly set: var element = documen...
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What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?

...n (foo) {...}. But they have some important differences. For example, they do not bind their own values of this (see below for discussion). Arrow functions are part of the ECMAscript 6 specification. They are not yet supported in all browsers, but they are partially or fully supported in Node v. 4.0...
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How to stop event bubbling on checkbox click

...e checkbox is also inside a container with it's own click behaviour that I don't want to run when the checkbox is clicked. This sample illustrates what I want to do: ...
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Internet Explorer 11 detection

...se who prefer another solution , without using ActiveX) var isIE11 = !!window.MSInputMethodContext && !!document.documentMode; // true on IE11 // false on Edge and other IEs/browsers. Original Answer In order to check Ie11 , you can use this : ( tested) (or run this) !(window.Act...
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Is it possible in SASS to inherit from a class in another file?

... I feel bad for doing this since the other answers pretty much answered this question (I just neglected to check back for a while and then forgot); but I'm accepting your answer because it is the most complete—i.e., it walks me through the...
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How to calculate the CPU usage of a process by PID in Linux from C?

...he data from /proc/<PID>/stat. These are the first few fields (from Documentation/filesystems/proc.txt in your kernel source): Table 1-3: Contents of the stat files (as of 2.6.22-rc3) .............................................................................. Field Content pid...
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Get PHP class property by string

How do I get a property in a PHP based on a string? I'll call it magic . So what is magic ? 12 Answers ...
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Finding most changed files in Git

... You could do something like the following: git log --pretty=format: --name-only | sort | uniq -c | sort -rg | head -10 The log just outputs the names of the files that have been changed in each commit, while the rest of it just sort...
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What does O(log n) mean exactly?

...is is why, for example, looking up people in a phone book is O(log n). You don't need to check every person in the phone book to find the right one; instead, you can simply divide-and-conquer by looking based on where their name is alphabetically, and in every section you only need to explore a subs...