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What are rvalues, lvalues, xvalues, glvalues, and prvalues?
... expressions that can be moved, and in which direction.
From what I guess based on the draft, the r/l value distinction stays the same, only in the context of moving things get messy.
Are they needed? Probably not if we wish to forfeit the new features. But to allow better optimization we should ...
Sample settings.xml for maven
...ut. If set
| to false, maven will use a sensible default value, perhaps based on some
| other setting, for the parameter in question.
|
| Default: true
<interactiveMode>true</interactiveMode>
-->
<!-- offline
| Determines whether maven should attempt to connec...
Using unset vs. setting a variable to empty
...
Based on the comments above, here is a simple test:
isunset() { [[ "${!1}" != 'x' ]] && [[ "${!1-x}" == 'x' ]] && echo 1; }
isset() { [ -z "$(isunset "$1")" ] && echo 1; }
Example:
$ unset foo; [...
Search all of Git history for a string? [duplicate]
I have a code base which I want to push to GitHub as open source. In this git-controlled source tree, I have certain configuration files which contain passwords. I made sure not to track this file and I also added it to the .gitignore file. However, I want to be absolutely positive that no sensiti...
Adjust UIButton font size to width
...
iOS 10.3 solution based on the other answers here:
button.titleLabel!.numberOfLines = 1
button.titleLabel!.adjustsFontSizeToFitWidth = true
button.titleLabel!.baselineAdjustment = .alignCenters
Nobody mentioned baselineAdjustm...
What does “opt” mean (as in the “opt” directory)? Is it an abbreviation? [closed]
...ptional add-on software packagessource, or anything that isn't part of the base system. Only some distributions use it, others simply use /usr/local.
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How to hide Soft Keyboard when activity starts
...nputMethodManager.hideSoftInputFromWindow(windowToken, 0)
}
Alternatives based on use case:
fun Fragment.hideKeyboard() {
view?.let { activity?.hideKeyboard(it) }
}
fun Activity.hideKeyboard() {
// Calls Context.hideKeyboard
hideKeyboard(currentFocus ?: View(this))
}
fun Context.hid...
Is there a command to list SVN conflicts?
...visions after the latest one you updated with.
E.g. if your current WC is based on revision 147 this could do it:
svn merge -r 148:HEAD http://url.to.repo/repo/
It's nothing I've done myself though, so you'll have to try it yourself.
...
Principles for Modeling CouchDB Documents
...ey/value pairs into the results of a map/reduce query, the keys are sorted based on UTF-8 collation ("a" comes before "b"). You can also output complex keys from your map/reduce as JSON arrays: ["a", "b", "c"]. Doing that would allow you to include a "tree" of sorts built out of array keys. Using yo...
Omit rows containing specific column of NA
...he cols= argument is available in the data.table::na.omit library. Not the base stats::na.omit.
– M. Viking
Aug 21 '19 at 18:39
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