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How does Python manage int and long?
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Comment by Ted : As mentioned below beware that casting something to int that is larger than maxint will still result in a long >>>type(int(sys.maxint+1)) <type 'long'>
– StuartLC
Oct 25 '12 at 9:51
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PostgreSQL return result set as JSON array?
...t them:
SELECT to_jsonb(array_agg(t)) FROM t
or combine json_agg with a cast:
SELECT json_agg(t)::jsonb FROM t
My testing suggests that aggregating them into an array first is a little faster. I suspect that this is because the cast has to parse the entire JSON result.
9.2
9.2 does not have ...
Creating Unicode character from its number
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Just cast your int to a char. You can convert that to a String using Character.toString():
String s = Character.toString((char)c);
EDIT:
Just remember that the escape sequences in Java source code (the \u bits) are in HEX, so ...
Calling Java varargs method with single null argument?
...ray. For a single argument it assumes the latter.
You have two choices. Cast the null explicitly to Object or call the method using a strongly typed variable. See the example below:
public class Temp{
public static void main(String[] args){
foo("a", "b", "c");
foo(null, null);
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Object-orientation in C
...t member of a structure be an instance of the superclass, and then you can cast around pointers to base and derived classes freely:
struct base
{
/* base class members */
};
struct derived
{
struct base super;
/* derived class members */
};
struct derived d;
struct base *base_ptr = (s...
Best practices to handle routes for STI subclasses in rails
...subclassing (unlike Rails 4) and works in Rails 3.
# initializers/acts_as_castable.rb
module ActsAsCastable
extend ActiveSupport::Concern
module ClassMethods
def new_with_cast(*args, &block)
if (attrs = args.first).is_a?(Hash)
if klass = descendant_class_from_attrs(attrs...
C++ templates Turing-complete?
...= config::position };
typedef typename Conditional<
static_cast<int>(GetSize<typename config::input>::value)
<= static_cast<int>(position),
AppendItem<InputBlank, typename config::input>,
Identity<typename config::input>&g...
C read file line by line
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Why the cast (FILE*) fp ? Isn't fp is already a FILE * and also fopen() returns a FILE * ?
– Accountant م
Apr 4 '19 at 23:25
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How do I sort an NSMutableArray with custom objects in it?
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I did this in iOS 4 using a block.
Had to cast the elements of my array from id to my class type.
In this case it was a class called Score with a property called points.
Also you need to decide what to do if the elements of your array are not the right type, for thi...
How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
... XML PATH command.
SELECT [VehicleID]
, [Name]
, (STUFF((SELECT CAST(', ' + [City] AS VARCHAR(MAX))
FROM [Location]
WHERE (VehicleID = Vehicle.VehicleID)
FOR XML PATH ('')), 1, 2, '')) AS Locations
FROM [Vehicle]
It's a lot easier than using a cursor, and s...