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How do you test functions and closures for equality?
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Chris Lattner wrote on the developer forums:
This is a feature we intentionally do not want to support. There are
a variety of things that will cause pointer equality of functions (in
the swift type system sense, which includes several kinds of closures)
to fail or change depending o...
What is x after “x = x++”?
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x does get incremented. But you are assigning the old value of x back into itself.
x = x++;
x++ increments x and returns its old value.
x = assigns the old value back to itself.
So in the end, x gets assigned back to its initial value.
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How can I remove a trailing newline?
... on a Windows system either, because the trailing character will always be converted to '\n'.
– Mad Physicist
Apr 28 '17 at 19:55
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AngularJS - Any way for $http.post to send request parameters instead of JSON?
...lobal override of a default transform (using jQuery param as an example to convert the data to param string).
Set up global transformRequest function:
var app = angular.module('myApp');
app.config(function ($httpProvider) {
$httpProvider.defaults.transformRequest = function(data){
if ...
C# Iterating through an enum? (Indexing a System.Array)
...yEnum));
MyEnum[] values = (MyEnum[])Enum.GetValues(typeof(MyEnum));
for( int i = 0; i < names.Length; i++ )
{
print(names[i], values[i]);
}
But, can you be sure that GetValues returns the values in the same order as GetNames returns the names ?
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How can I make my custom objects Parcelable?
... this.grade = data[2];
}
@Оverride
public int describeContents(){
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeStringArray(new String[] {this.id,
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How can I add reflection to a C++ application?
I'd like to be able to introspect a C++ class for its name, contents (i.e. members and their types) etc. I'm talking native C++ here, not managed C++, which has reflection. I realise C++ supplies some limited information using RTTI. Which additional libraries (or other techniques) could supply this ...
Is there a function that returns the current class/method name? [duplicate]
...od().Name;
Since you're using this for logging purposes, you may also be interested in getting the current stack trace.
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For each row in an R dataframe
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Be careful, as the dataframe is converted to a matrix, and what you end up with (x) is a vector. This is why the above example has to use numeric indexes; the by() approach gives you a data.frame, which makes your code more robust.
– D...
Android : Check whether the phone is dual SIM
...detect that the phone has two SIMs? I believe it can be detected with some intelligence. Few ways I can think of are:
8 Ans...