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Templated check for the existence of a class member function?
...E test
template <typename T>
class has_helloworld
{
typedef char one;
struct two { char x[2]; };
template <typename C> static one test( decltype(&C::helloworld) ) ;
template <typename C> static two test(...);
public:
enum { value = sizeof(test<T>...
How to round a number to significant figures in Python
I need to round a float to be displayed in a UI. E.g, to one significant figure:
20 Answers
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Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
...s and it's up for the user to decide what behavior should be the "correct" one. Would you discard the elements from the longer stream or pad the shorter list? If so, with what value(s)?
– siki
Jun 29 '15 at 14:47
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Quicksort: Choosing the pivot
When implementing Quicksort, one of the things you have to do is to choose a pivot. But when I look at pseudocode like the one below, it is not clear how I should choose the pivot. First element of list? Something else?
...
Division of integers in Java [duplicate]
...ote that you don't actually need to convert both of the inputs. So long as one of them is double, the other will be implicitly converted. But I prefer to do both, for symmetry.
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WPF OpenFileDialog with the MVVM pattern? [duplicate]
.... I'm showing them both here so you don't think I'm suggesting you create one interface with one method to get around this problem.
public interface IOService
{
string OpenFileDialog(string defaultPath);
//Other similar untestable IO operations
Stream OpenFile(string path);
}
In ...
How to limit google autocomplete results to City and Country only
...on
function initialize() {
var options = {
types: ['(cities)'],
componentRestrictions: {country: "us"}
};
var input = document.getElementById('searchTextField');
var autocomplete = new google.maps.places.Autocomplete(input, options);
}
More info:
ISO 3166-1 alpha-2 can be used to restr...
What exactly are late static bindings in PHP?
...ce children have identically named members since you can then decide which ones to refer to by using static:: instead.
– DanMan
Mar 13 '18 at 12:54
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Android Studio - How to Change Android SDK Path
.../<username>/android-sdks" (Instead of <username> says the real one). Apply (and reset Andr Studio, just in case). The path was saved successfully. Again under Platform Settings, click on SDKs. Now in the middle column I can see all the sdks installed on the new path
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Mockito - difference between doReturn() and when()
...e are cases where you can't use when/thenReturn. Stubbing void methods is one such. Others include use with Mockito spies, and stubbing the same method more than once.
One thing that when/thenReturn gives you, that doReturn/when doesn't, is type-checking of the value that you're returning, at com...