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Is it better to use std::memcpy() or std::copy() in terms to performance?

... 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating between the memcpy version and the std::copy version. My code takes adv...
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How do I check which version of NumPy I'm using?

... David Stansby 1,0851010 silver badges1616 bronze badges answered Oct 5 '09 at 14:02 SilentGhostSilentGhost ...
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Alternatives to gprof [closed]

... answered Dec 19 '09 at 5:26 Norman RamseyNorman Ramsey 184k5757 gold badges336336 silver badges517517 bronze badges ...
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HTML tag affecting line height, how to make it consistent?

...e font size further to make it fit: sup { vertical-align: top; font-size: 0.6em; } Another hack you could try is to use positioning to move it up a bit without affecting the line box: sup { vertical-align: top; position: relative; top: -0.5em; } Of course this runs the risk of crashing into th...
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Implement Stack using Two Queues

... Richard 40.9k2222 gold badges134134 silver badges203203 bronze badges answered Mar 27 '09 at 2:17 SvanteSvante...
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What is RSS and VSZ in Linux memory management

...ot used, and memory that is from shared libraries. So if process A has a 500K binary and is linked to 2500K of shared libraries, has 200K of stack/heap allocations of which 100K is actually in memory (rest is swapped or unused), and it has only actually loaded 1000K of the shared libraries and 400K...
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Difference between variable declaration syntaxes in Javascript (including global variables)?

...al terms they're not usually big ones. There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have: var a = 0; // 1 let a = 0; // 1.1 (new with ES2015) const a = 0; // 1.2 (new wit...
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Is there a way to make npm install (the command) to work behind proxy?

...ng this syntax: npm --proxy http://username:password@cacheaddress.com.br:80 install packagename Skip the username:password part if proxy doesn't require you to authenticate EDIT: A friend of mine just pointed out that you may get NPM to work behind a proxy by setting BOTH HTTP_PROXY and HTTPS_P...
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How does _gaq.push(['_trackPageLoadTime']) work?

... Edit: As of November 16th 2011, the _trackPageLoadTime function has been deprecated and its functionality has been set as a default setting. (Functionally speaking, it has gone from being an opt-in feature to being an opt-out feature.) _setSiteSpeedSa...
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What are the differences between a multidimensional array and an array of arrays in C#?

... int32 'value') cil managed { // Code size 7 (0x7) .maxstack 8 IL_0000: ldarg.0 IL_0001: ldarg.1 IL_0002: ldelem.ref IL_0003: ldarg.2 IL_0004: ldarg.3 IL_0005: stelem.i4 IL_0006: ret } // end of method Program::SetElementAt .method private hideby...