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In C++, is it still bad practice to return a vector from a function?
...o says nothing about v-tables, so you can't be sure that virtual function calls are efficient either. Essentially, you need to put some faith in the compiler at times.
– Peter Alexander
Jun 28 '10 at 23:04
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How can I change UIButton title color?
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With Swift 5, UIButton has a setTitleColor(_:for:) method. setTitleColor(_:for:) has the following declaration:
Sets the color of the title to use for the specified state.
func setTitleColor(_ color: UIColor?, for state: UIControlState)
The following Playgro...
Cannot push to Git repository on Bitbucket
...ent every time you run GitBash:
$ cat ~/.bashrc
If you see a function called start_agent, this step has already been completed.
If no file, continue.
If there is a file that does not contain this function, you're in a sticky situation. It's probably safe to append to it (using the instructions ...
How to handle Objective-C protocols that contain properties?
...answered May 10 '09 at 5:46
Kendall Helmstetter GelnerKendall Helmstetter Gelner
72.5k2626 gold badges123123 silver badges146146 bronze badges
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How can I call controller/view helper methods from the console in Ruby on Rails?
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To call helpers, use the helper object:
$ ./script/console
>> helper.number_to_currency('123.45')
=> "R$ 123,45"
If you want to use a helper that's not included by default (say, because you removed helper :all from Ap...
Is there a way to tell git to only include certain files instead of ignoring certain files?
My programs generally generate huge output files (~1 GB) which I do not want to be backing up to the git repository. So instead of being able to do
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How do I save a UIImage to a file?
...// Save image.
[UIImagePNGRepresentation(image) writeToFile:filePath atomically:YES];
Core Data has nothing to do with saving images to disk by the way.
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Does a `+` in a URL scheme/host/path represent a space?
...but
any + characters in the path component is expected to be treated literally.
To be explicit: + is only a special character in the query component.
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How to do scanf for single char in C [duplicate]
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The %c conversion specifier won't automatically skip any leading whitespace, so if there's a stray newline in the input stream (from a previous entry, for example) the scanf call will consume it immediately.
One way around the problem is to put a blank space before t...
RESTful URL design for search
...lue&doors=4&type=sedan #I don't recommend using &*
Or basically anything what isn't a slash as explained above.
The formula: /cars[?;]color[=-:]blue[,;+&], * though I wouldn't use the & sign as it is unrecognizable from the text at first glance.
** Did you know that passi...