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A fast method to round a double to a 32-bit int explained
...ly the integers
This follows from the fact that the mantissa is 52 bits wide.
The other interesting fact about adding 251+252 is that it affects the mantissa only in the two highest bits - which are discarded anyway, since we are taking only its lowest 32 bits.
Last but not least: the sign.
I...
What does addChildViewController actually do?
...d to do is implement a custom container view controller - lets call it SideBarViewController - that swaps out which of several possible child view controllers it shows, almost exactly like a standard Tab Bar Controller . (It's pretty much a Tab Bar Controller but with a hideable side menu ins...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...designed language, only to save 2 characters. It's as if java code style said that it's petter to put { on a new line after if (saves the same number of characters) but not in class definition. Also a keyword parameter is different than default value but still uses the same style recommendation.
...
Is C++14 adding new keywords to C++?
...uto delete inline short typeid
bool do int signed typename
break double long sizeof union
case dynamic_cast mutable static ...
What exactly do the Vagrant commands do?
...
I agree with you that documentation at vagrantup is on the shorter side.
Some information can be gleaned from command help system.
For example: gem command.
Just type the command without arguments: vagrant gem -h and it produces the information that you may need.
vagrant gem is used t...
Is it necessary to explicitly remove event handlers in C#
... service which lets you subscribe to asynchronous notifications about bandwidth changes, and the transfer service object is long-lived. If we do this:
BandwidthUI ui = new BandwidthUI();
transferService.BandwidthChanged += ui.HandleBandwidthChange;
// Suppose this blocks until the transfer is compl...
What does “1 line adds whitespace errors” mean when applying a patch?
...y programmers tend to care about. As the manual explains:
What are considered whitespace errors is controlled
by core.whitespace configuration. By default, trailing whitespaces
(including lines that solely consist of whitespaces) and a space
character that is immediately followed by a tab ...
How to pass a single object[] to a params object[]
..." parameter. This would allow you to pass multiple arrays as arguments:
void Foo( params object[][] arrays ) {
foreach( object[] array in arrays ) {
// process array
}
}
...
Foo( new[] { "1", "2" }, new[] { "3", "4" } );
// Equivalent to:
object[][] arrays = new[] {
new[] { "1", "2" },
...
Difference between Grunt, NPM and Bower ( package.json vs bower.json )
...s :).
I do have a bit of experience with rails, so I'm familiar with the idea of files for listing dependencies (such as bundler Gemfile)
...
Logback to log different messages to two files
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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