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Sorting an IList in C#
...word of caution: this approach assumes that the IList<T> list can be cast to the non-generic IList interface. If you code your own class implementing the IList<T> interface, make sure you also implement the non-generic IList interface, or the code will fail with a class cast exception.
...
Change default primary key in Eloquent
...d to make sure you set public $incrementing = false otherwise laravel will cast the field to an Integer, giving 0
class User extends Model {
protected $primaryKey = 'my_string_key';
public $incrementing = false;
}
...
How to use GROUP BY to concatenate strings in SQL Server?
...LUES (2,'C',9)
SELECT
[ID],
STUFF((
SELECT ', ' + [Name] + ':' + CAST([Value] AS VARCHAR(MAX))
FROM #YourTable
WHERE (ID = Results.ID)
FOR XML PATH(''),TYPE).value('(./text())[1]','VARCHAR(MAX)')
,1,2,'') AS NameValues
FROM #YourTable Results
GROUP BY ID
DROP TABLE #YourT...
Filling a DataSet or DataTable from a LINQ query result set
...ons.Generic.IEnumerable'. An explicit conversion exists (are you missing a cast?)
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std::wstring VS std::string
...text); i < iMax; ++i)
{
std::cout << " " << static_cast<unsigned int>(
static_cast<unsigned char>(text[i])
);
}
std::cout << std::endl << std::endl ;
// - - -
const wchar_t wtext[]...
Get PHP class property by string
...t actually succeed, although this is likely to be a bug. $name is silently cast to an integer. In the case of a non-numeric string this is 0. Then this string index of the value of $property is used as the property name. If $property holds the value "abc", then this will refer to the property $this-...
When do I use fabs and when is it sufficient to use std::abs?
...preal there are cases with hard "ambiguous overload" messages - abs(static_cast<T>(x)) isn't always solving that.
When abs is ambiguous, there are chances that fabs is working as expected. For sqrt I found no such simple escape.
Since weeks I'm hard struggling on C++ "not existing problems". ...
Converting 'ArrayList to 'String[]' in Java
...ourse, because Java doesn't do real generics; it mostly just fakes them by casting Object)
– Nyerguds
May 19 '16 at 11:05
3
...
Most efficient way to check for DBNull and then assign to a variable?
...ert(Of Integer)(oRow("Value")), iDefault)
oSomeObject.StringMember = If(TryCast(oRow("Name"), String), sDefault)
Function TryConvert(Of T As Structure)(ByVal obj As Object) As T?
If TypeOf obj Is T Then
Return New T?(DirectCast(obj, T))
Else
Return Nothing
End If
End Fun...
Check if character is number?
...);
}
The comment for this function reads:
// parseFloat NaNs numeric-cast false positives (null|true|false|"")
// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
// subtraction forces infinities to NaN
I think we can trust that these chaps have spent quit...