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Smart pointers: who owns the object? [closed]
...n happen inside the same function, or when the object has to be considered one-owner-only ever. When you assign one pointer to another, the second 'steals' the object from the first.
I have my own implementation for these, but they are also available in Boost.
I still pass objects by reference (co...
How do I see if Wi-Fi is connected on Android?
...ctionInfo();
supState = wifiInfo.getSupplicantState();
Which will return one of these states at the time you call getSupplicantState();
ASSOCIATED - Association completed.
ASSOCIATING - Trying to associate with
an access point.
COMPLETED - All authentication
completed.
DIS...
Javascript switch vs. if…else if…else
... switch and if...else if...else is small, they basically do the same work. One difference between them that may make a difference is that the expression to test is only evaluated once in a switch while it's evaluated for each if. If it's costly to evaluate the expression, doing it one time is of cou...
Java: How to get input from System.console()
...
The following takes athspk's answer and makes it into one that loops continually until the user types "exit". I've also written a followup answer where I've taken this code and made it testable.
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStre...
ASP.NET MVC: Custom Validation by DataAnnotation
... return null;
}
}
and then you might have a view model and decorate one of its properties with it:
public class MyViewModel
{
[CombinedMinLength(20, "Bar", "Baz", ErrorMessage = "The combined minimum length of the Foo, Bar and Baz properties should be longer than 20")]
public string ...
Why I can't change directories using “cd”?
...its, you're back in the interactive shell and nothing ever changed there.
One way to get around this is to use an alias instead:
alias proj="cd /home/tree/projects/java"
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How to grep Git commit diffs or contents for a certain word?
... @jakeonrails, That answer should have been an edit to this (older) one, so we don't have these annoying duplicates. But people only want the reputation, instead of a clean answers page.
– Iulian Onofrei
Feb 6 '18 at 14:56
...
How to copy text programmatically in my Android app?
...
So everyone agree on how this should be done, but since no one want to give a complete solution, here goes:
int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.HONEYCOMB) {
android.text.Clipboa...
How to turn a String into a JavaScript function call? [duplicate]
...
Seeing as I hate eval, and I am not alone:
var fn = window[settings.functionName];
if(typeof fn === 'function') {
fn(t.parentNode.id);
}
Edit: In reply to @Mahan's comment:
In this particular case, settings.functionName would be "clickedOnItem". This would...
What are best practices for REST nested resources?
As far as I can tell each individual resource should have only one canonical path. So in the following example what would good URL patterns be?
...