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How would one write object-oriented code in C? [closed]
...; // This is a non-virtual call
Stack.push(st, thing1); // This is like casting *st to a Stack (which it already is) and doing the push
st->my_type.push(st, thing2); // This is a virtual call
}
I didn't do the destructor or delete, but it follows the same pattern.
this_is_here_as_an_exam...
Input text dialog Android
...
Remember to cast that findViewById with (ViewGroup)!
– Martin Erlic
Sep 27 '16 at 17:24
2
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What is the 'instanceof' operator used for in Java?
...cked state. Instead, you'd see if each object is a checkbox, and if it is, cast it to a checkbox and check its properties.
if (obj instanceof Checkbox)
{
Checkbox cb = (Checkbox)obj;
boolean state = cb.getState();
}
...
Are Javascript arrays sparse?
...ot use, neither use thou non-integers, excepting that thou then proceed to cast to String. Arbitrary objects are right out.
– Crescent Fresh
Oct 2 '09 at 18:37
8
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How to check if a database exists in SQL Server?
...8))
RETURNS bit
AS
BEGIN
declare @result bit = 0
SELECT @result = CAST(
CASE WHEN db_id(@dbname) is not null THEN 1
ELSE 0
END
AS BIT)
return @result
END
GO
Now you can use it like this:
select [dbo].[DatabaseExists]('master') --returns 1
select [dbo].[...
How can I use optional parameters in a T-SQL stored procedure?
... = 100
AS
BEGIN
DECLARE @SQL NVARCHAR(4000) = '
SELECT TOP ' + CAST(@TopCount AS VARCHAR) + ' *
FROM Person
WHERE 1 = 1'
PRINT @SQL
IF (@FirstName IS NOT NULL) SET @SQL = @SQL + ' AND FirstName = @FirstName'
IF (@LastName IS NOT NULL) SET @SQL = @SQL + ' AND...
How to strip all non-alphabetic characters from string in SQL Server?
...nstead of NVARCHAR within his function otherwise, your system will need to cast the string values from VARCHAR to NVARCHAR before it can perform the function which is more expensive. Even with those changes your function still might be faster, but those are a few examples I can see where his functi...
Get an OutputStream into a String
...
Just casting a byte to char will only work on ascii. Use ByteArrayOutputStream like Horcrux7
– Dave Ray
Oct 11 '09 at 22:45
...
How to get UTC time in Python?
...%s"))
If you want microseconds, you need to change the export string and cast to float like: return float(now.strftime("%s.%f"))
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How do I check if a list is empty?
... Part 1
The "pythonic" way fails with NumPy arrays because NumPy tries to cast the array to an array of bools, and if x tries to evaluate all of those bools at once for some kind of aggregate truth value. But this doesn't make any sense, so you get a ValueError:
>>> x = numpy.array([0,1]...