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C++ performance challenge: integer to std::string conversion

... #include <string> const char digit_pairs[201] = { "00010203040506070809" "10111213141516171819" "20212223242526272829" "30313233343536373839" "40414243444546474849" "50515253545556575859" "60616263646566676869" "70717273747576777879" "808182...
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How would you count occurrences of a string (actually a char) within a string?

... 134| 1853| 95| 1146| 671| LukeH_1 | 346| 4490| N/A| N/A| N/A| LukeH_2 | 152| 1569| 197| 2425| 2171| Bobwienholt | 230| 3269| N/A| N/A| ...
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Does a `+` in a URL scheme/host/path represent a space?

...' .. 'z', // alpha '0' .. '9', // digit '-', '.', '_', '~':; // rest of unreserved characters as defined in the RFC-3986, p.2.3 else begin Result[I] := '%'; Insert('00', Result, I + 1); Result[I + 1] := HexCharArrA[(Byte(C) shr 4...
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How can I start PostgreSQL server on Mac OS X?

...omatically. For more information, run brew info postgres. Start manually pg_ctl -D /usr/local/var/postgres start Stop manually pg_ctl -D /usr/local/var/postgres stop Start automatically "To have launchd start postgresql now and restart at login:" brew services start postgresql What is the result of...
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How do I encode and decode a base64 string?

....GetBytes(text)).TrimEnd('=').Replace('+', '-') .Replace('/', '_'); } public static string Decode(string text) { text = text.Replace('_', '/').Replace('-', '+'); switch (text.Length % 4) { case 2: text += "=="; ...
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How do I pass command line arguments to a Node.js program?

...ice(2)); console.dir(argv); - $ node example/parse.js -a beep -b boop { _: [], a: 'beep', b: 'boop' } - $ node example/parse.js -x 3 -y 4 -n5 -abc --beep=boop foo bar baz { _: [ 'foo', 'bar', 'baz' ], x: 3, y: 4, n: 5, a: true, b: true, c: true, beep: 'boop' } ...
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How to save an image to localStorage and display it on the next page?

..."text"/> Then get the dimensions of your file into the input boxes var _URL = window.URL || window.webkitURL; $("#file-input").change(function(e) { var file, img; if ((file = this.files[0])) { img = new Image(); img.onload = function() { $("#file-h").val(this....
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What is simplest way to read a file into String? [duplicate]

...: new String(Files.readAllBytes(Paths.get(filePath)), StandardCharsets.UTF_8); Where filePath is a String representing the file you want to load. share | improve this answer | ...
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Servlet for serving static content

...tiple url-pattern tags inside servlet-mapping – vivid_voidgroup May 22 '12 at 12:59 Just be careful with index files (...
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Django filter versus get for single object?

...alled django-annoying and then do this: from annoying.functions import get_object_or_None obj = get_object_or_None(MyModel, id=1) if not obj: #omg the object was not found do some error stuff share | ...