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Why does Math.Floor(Double) return a value of type Double?
...ow that the value will actually be within the range of int or long, so you cast it:
double d = 1000.1234d;
int x = (int) Math.Floor(d);
but the onus for that cast is on the developer, not on Math.Floor itself. It would have been unnecessarily restrictive to make it just fail with an exception for...
Splitting a string into chunks of a certain size
...unkSize)
{
return Enumerable.Range(0, str.Length / chunkSize)
.Select(i => str.Substring(i * chunkSize, chunkSize));
}
Please note that additional code might be required to gracefully handle edge cases (null or empty input string, chunkSize == 0, input string length not divisible by...
Modify table: How to change 'Allow Nulls' attribute from not null to allow null
...
I wrote this so I could edit all tables and columns to null at once:
select
case
when sc.max_length = '-1' and st.name in ('char','decimal','nvarchar','varchar')
then
'alter table [' + so.name + '] alter column [' + sc.name + '] ' + st.name + '(MAX) NULL'
when st.name in ('char','decimal','n...
How to get disk capacity and free space of remote computer
...t Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Select-Object Size,FreeSpace
$disk.Size
$disk.FreeSpace
To extract the values only and assign them to a variable:
$disk = Get-WmiObject Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Foreach-Obje...
Throw an error in a MySQL trigger
... trigger_test values (1), (-1), (2); -- everything fails as one row is bad
select * from trigger_test;
insert into trigger_test values (1); -- succeeds as expected
insert into trigger_test values (-1); -- fails as expected
select * from trigger_test;
...
How can I truncate a double to only two decimal places in Java?
...
If, for whatever reason, you don't want to use a BigDecimal you can cast your double to an int to truncate it.
If you want to truncate to the Ones place:
simply cast to int
To the Tenths place:
multiply by ten
cast to int
cast back to double
and divide by ten.
Hundreths place
mult...
Query an XDocument for elements by name at any depth
...n
TheDocument.Descendants( "{http://www.w3.org/2001/XMLSchema}Child" )
select
AnyElement;
ResultsTxt.AppendText( TheElements1.Count().ToString() );
//Example 2:
var TheElements2 =
from
AnyElement
in
TheDocument.Descendants( "{http://www.w3.org/2001/XMLSchema}Child" )
where
AnyE...
Conversion of System.Array to List
... edited Jan 25 '18 at 2:51
Ivan Castellanos
6,88511 gold badge3838 silver badges3838 bronze badges
answered Oct 21 '09 at 19:50
...
What are the advantages of using nullptr?
...s. Unlike C, C++ is a strongly typed language (C does not require explicit cast from void* to any type, while C++ mandates a explicit cast). This makes the definition of NULL specified by C standard useless in many C++ expressions. For example:
std::string * str = NULL; //Case 1
void (A::*p...
How to enumerate an enum with String type?
...ateEnum<T: Hashable>(_: T.Type) -> GeneratorOf<T> {
var cast: (Int -> T)!
switch sizeof(T) {
case 0: return GeneratorOf(GeneratorOfOne(unsafeBitCast((), T.self)))
case 1: cast = { unsafeBitCast(UInt8(truncatingBitPattern: $0), T.self) }
case 2: cast ...