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How to overload std::swap()

...phase lookup" for templates. If your compiler is conforming (to any of C++98/03/11), then it will give the same output I show. And in that case exactly what you fear will happen, does happen. And putting your swap into namespace std (exp) did not stop it from happening. Dave and I are both commi...
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Is there a constraint that restricts my generic method to numeric types?

... Mark Amery 98.8k4848 gold badges336336 silver badges379379 bronze badges answered Mar 15 '14 at 14:30 Jeroen Van...
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Add legend to ggplot2 line plot

...(fecha = structure(c(1317452400, 1317538800, 1317625200, 1317711600, 1317798000, 1317884400, 1317970800, 1318057200, 1318143600, 1318230000, 1318316400, 1318402800, 1318489200, 1318575600, 1318662000, 1318748400, 1318834800, 1318921200, 1319007600, 1319094000), class = c("POSIXct", "POSIXt"), tz...
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Avoiding if statement inside a for loop?

...lt;'\n'; }); } This code is not perfect but you get the idea. In old C++98 it looks like this: #include <iostream> #include <vector> using namespace std; struct with_index { void operator()(ostream& out, vector<int>::size_type i, int e) { out << i << '\t'...
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How are zlib, gzip and zip related? What do they have in common and how are they different?

...ERSE (new) 19 - IBM LZ77 z Architecture (PFS) 97 - WavPack compressed data 98 - PPMd version I, Rev 1 Methods 1 to 7 are historical and are not in use. Methods 9 through 98 are relatively recent additions and are in varying, small amounts of use. The only method in truly widespread use in the ZIP...
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Regular expression for floating point numbers

...ore numbers within a target string. So given the input: apple 1.34 pear 7.98 version 1.2.3.4 The regex will match 1.34, 7.98, 1.2, .3 and .4. To validate that a given input is a number and nothing but a number, "snap" the expression to the start and end of the input by wrapping it in anchor tags...
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How to use Elasticsearch with MongoDB?

... so it can play with MongoDB. bin/plugin --install com.github.richardwilly98.elasticsearch/elasticsearch-river-mongodb/1.6.0 bin/plugin --install elasticsearch/elasticsearch-mapper-attachments/1.6.0 These two plugins aren't necessary but they're good for testing queries and visualizing changes to...
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MongoDB/NoSQL: Keeping Document Change History

...list(users.revisions({"username": "darth_later"})) # [{'_id': ObjectId('5d98c3385d8edadaf0bb845b'), # 'username': 'darth_later', # 'email': 'darthlater@example.com', # '_revision_metadata': None}, # {'_id': ObjectId('5d98c3385d8edadaf0bb845b'), # 'username': 'darth_later', # 'email': 'da...
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Named colors in matplotlib

... can also plot colors by their HTML hex code: plt.plot([1,2], lw=4, c='#8f9805') This is more similar to specifying and RGB tuple rather than a named color (apart from the fact that the hex code is passed as a string), and I will not include an image of the 16 million colors you can choose from.....
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Amazon S3 CORS (Cross-Origin Resource Sharing) and Firefox cross-domain font loading

...xxxxxxx/assets/fonts/my-cool-font.ttf HTTP/1.1 200 OK x-amz-id-2: Ay63Qb5uR98ag47SRJ91+YALtc4onRu1JUJgMTU98Es/pzQ3ckmuWhzzbTgDTCt+ x-amz-request-id: F1FFE275C0FBE500 Date: Thu, 14 Aug 2014 09:39:40 GMT Access-Control-Allow-Origin: https://example.com Access-Control-Allow-Methods: GET Access-Control-...