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How do I detect unsigned integer multiply overflow?
...ur (UB) has occurred and your program can do anything (for example: render tests inconclusive).
#include <limits.h>
int a = <something>;
int x = <something>;
a += x; /* UB */
if (a < 0) { /* Unreliable test */
/* ... */
}
To create a conforming progr...
Test if string is a number in Ruby on Rails
...cases expected.
If they are relatively uncommon casting is definitely fastest.
If false cases are common and you are just checking for ints, comparison vs a transformed state is a good option.
If false cases are common and you are checking floats, regexp is probably the way to go
If performance ...
Is there an advantage to use a Synchronized Method instead of a Synchronized Block?
...he other thread will block when it attempts to acquire the lock.
package test;
public class SynchTest implements Runnable {
private int c = 0;
public static void main(String[] args) {
new SynchTest().test();
}
public void test() {
// Create the object with the ...
IntelliJ does not show 'Class' when we right click and select 'New'
...
If it is your test directory, mark it as the Test Source Root (it will appear in green)
– Arnaud Denoyelle
Sep 17 '13 at 14:25
...
Static methods - How to call a method from another method?
...ing an static method from another static method of the same class?
class Test() :
@staticmethod
def static_method_to_call()
pass
@staticmethod
def another_static_method() :
Test.static_method_to_call()
@classmethod
def another_class_method(cls) :
c...
How to spyOn a value property (rather than a method) with Jasmine
...h is perfectly okay. You'd be "changing the behaviour" only inside the the test which is what you were trying to achieve with the spyOn.
– Fabio Milheiro
Aug 14 '14 at 8:13
...
How can I get the client's IP address in ASP.NET MVC?
... here was very helpful, but I cleaned it up for my purposes and added some tests. Here's what I ended up with:
using System;
using System.Linq;
using System.Net;
using System.Web;
public class RequestHelpers
{
public static string GetClientIpAddress(HttpRequestBase request)
{
try
...
How do I get ruby to print a full backtrace instead of a truncated one?
...
caller(0,2) would return the two latest entries in the stacktrace. Nice for outputting abbreviated stacktraces.
– Magne
Jul 12 '17 at 9:14
...
How do I check if a Sql server string is null or empty
...
SELECT case when ISNULL(col1, '') = '' then '' else col1 END AS COL1 FROM TEST
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Replace duplicate spaces with a single space in T-SQL
...
This would work:
declare @test varchar(100)
set @test = 'this is a test'
while charindex(' ',@test ) > 0
begin
set @test = replace(@test, ' ', ' ')
end
select @test
...