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new keyword in method signature
...:
You cannot override a non-virtual or
static method. The overridden base
method must be virtual, abstract, or
override.
So the 'new' keyword is needed to allow you to 'override' non-virtual and static methods.
s...
Why is UICollectionViewCell's outlet nil?
...I don't use it, it gives me error Assertion failure in -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:]
– Shaheera
Jun 30 '16 at 11:04
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Add & delete view from Layout
...ld");
ViewGroup Layout = (LinearLayout) getActivity().findViewById(R.id.my_layout);
layout.addView(view);
There are also a number of remove methods. Check the documentation of ViewGroup.
One simple way to remove view from a layout can be like,
layout.removeAllViews(); // then you will end up h...
C# Linq Group By on multiple columns [duplicate]
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@jazmatician _ I agree with you on the point that re-using x might confuse some, but not on the choice for variable names. I'll change it to x and y to diferentiate.
– Jamiec
Nov 19 '12 at 15:51
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Downcasting shared_ptr to shared_ptr?
...amic_pointer_cast. It is supported by std::shared_ptr.
std::shared_ptr<Base> base (new Derived());
std::shared_ptr<Derived> derived =
std::dynamic_pointer_cast<Derived> (base);
Documentation: https://en.cppreference.com/w/cpp/memory/shared_ptr/pointer_cast
Also, ...
Convert HashBytes to VarChar
...
I have found the solution else where:
SELECT SUBSTRING(master.dbo.fn_varbintohexstr(HashBytes('MD5', 'HelloWorld')), 3, 32)
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What is the point of a private pure virtual function?
... classes. Methods of derived classes can't call virtual functions from the base class, but they can provide their own implementation for them. According to Herb Sutter, having public non-virtual interface in the base class and a private implementation that can be customized in the derived classes, a...
The most efficient way to implement an integer based power function pow(int, int)
...
Exponentiation by squaring.
int ipow(int base, int exp)
{
int result = 1;
for (;;)
{
if (exp & 1)
result *= base;
exp >>= 1;
if (!exp)
break;
base *= base;
}
return result;
}
Th...
1114 (HY000): The table is full
...elated resolution.
You seem to have a too low maximum size for your innodb_data_file_path in your my.cnf, In this example
innodb_data_file_path = ibdata1:10M:autoextend:max:512M
you cannot host more than 512MB of data in all innodb tables combined.
Maybe you should switch to an innodb-per-table...
How to display HTML tags as plain text [duplicate]
...preserve your indentation.
echo '<pre>';
echo htmlspecialchars($YOUR_HTML);
echo '</pre>';
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