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Why use apparently meaningless do-while and if-else statements in macros?

... #define BAR(X) do { \ int i = f(X); \ if (i > 4) g(i); \ } while (0) You don't have to use do ... while, you could cook up something with if ... else as well, although when if ... else expands inside of an if ... else it leads to a "dangling else", which could make an existing dangling el...
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Referencing another schema in Mongoose

... | edited Aug 1 '13 at 19:04 Gorkem Yurtseven 2,63277 gold badges2626 silver badges4444 bronze badges an...
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Is it possible to read from a InputStream with a timeout?

...vailable() It is always acceptable for System.in.available() to return 0. I've found the opposite - it always returns the best value for the number of bytes available. Javadoc for InputStream.available(): Returns an estimate of the number of bytes that can be read (or skipped over) from thi...
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How to change ViewPager's page?

... answered Sep 16 '11 at 14:40 Mark AllisonMark Allison 21.2k88 gold badges4242 silver badges4545 bronze badges ...
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Enums and Constants. Which to use when?

...rom here as I'm lazy) [FlagsAttribute] enum DistributedChannel { None = 0, Transacted = 1, Queued = 2, Encrypted = 4, Persisted = 16, FaultTolerant = Transacted | Queued | Persisted } Constants should be for a single value, like PI. There isn't a range of PI values, there is just PI. ...
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Iterate over object keys in node.js

...matter. var async = {}; async.forEach = function(o, cb) { var counter = 0, keys = Object.keys(o), len = keys.length; var next = function() { if (counter < len) cb(o[keys[counter++]], next); }; next(); }; async.forEach(obj, function(val, next) { // do things setTimeout(ne...
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How to prevent browser page caching in Rails

...nse.headers["Pragma"] = "no-cache" response.headers["Expires"] = "Mon, 01 Jan 1990 00:00:00 GMT" end end Rails 4 and older versions: class ApplicationController < ActionController::Base before_filter :set_cache_headers private def set_cache_headers response.headers["Cache-Co...
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Why use @Scripts.Render(“~/bundles/jquery”)

... answered Aug 30 '12 at 8:22 yan.kunyan.kun 6,58222 gold badges2525 silver badges3636 bronze badges ...
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How to Customize the time format for Python logging?

... answered Jul 10 '10 at 18:05 MetalsharkMetalshark 6,89477 gold badges3131 silver badges4949 bronze badges ...
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Python integer division yields float

... answered Aug 15 '09 at 21:51 Brandon E TaylorBrandon E Taylor 23.1k66 gold badges4343 silver badges6868 bronze badges ...