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What is a Manifest in Scala and when do you need it?
Since Scala 2.7.2 there is something called Manifest which is a workaround for Java's type erasure. But how does Manifest work exactly and why / when do you need to use it?
...
What is “:-!!” in C code?
...sizeof(struct { int: -!!(e); }))
(e): Compute expression e.
!!(e): Logically negate twice: 0 if e == 0; otherwise 1.
-!!(e): Numerically negate the expression from step 2: 0 if it was 0; otherwise -1.
struct{int: -!!(0);} --> struct{int: 0;}: If it was zero, then we declare a struct with an an...
Force SSL/https using .htaccess and mod_rewrite
...that expose stuff that should be protected. When this directive is present all requests are denied which are not using SSL.
This will not do a redirect to https though. To redirect, try the following with mod_rewrite in your .htaccess file
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^ ...
What is the difference between Pan and Swipe in iOS?
...esture is continuous. It begins (began) when the minimum number of fingers allowed (minimumNumberOfTouches) has moved enough to be considered a pan. It changes (changed) when a finger moves while at least the minimum number of fingers are pressed down. It ends (ended) when all fingers are lifted.
C...
How can I include a YAML file inside another?
...ve added an answer below...hope it helps.
– daveaspinall
Aug 19 '15 at 9:39
1
If you're using Rai...
Android static object lifecycle
...cation?
The OS starts a process and assigns it a unique process id and allocates a process table.A process start an instance of DVM(Dalvik VM); Each application runs inside a DVM.
A DVM manages class loading unloading, instance lifecycle, GC etc.
Lifetime of a static variable: A static variable...
What is the purpose of the “Prefer 32-bit” setting in Visual Studio and how does it actually work?
...
Microsoft has a blog entry What AnyCPU Really Means As Of .NET 4.5 and Visual Studio 11:
In .NET 4.5 and Visual Studio 11 the cheese has been moved. The
default for most .NET projects is again AnyCPU, but there is more than
one meaning to AnyCPU now. There i...
In SQL Server, when should you use GO and when should you use semi-colon ;?
...S to send the SQL statements between each GO in individual batches sequentially.
The ; is a SQL statement delimiter, but for the most part the engine can interpret where your statements are broken up.
The main exception, and place where the ; is used most often is before a Common Table Expression ...
Git: Create a branch from unstaged/uncommitted changes on master
...tatus still show your local changes, although you are on master.
If you really want to discard the local changes, you have to force the checkout with -f.
git checkout master -f
Since your changes were never committed, you'd lose them.
Try to get back to your branch, commit your changes, then ch...
The difference between the 'Local System' account and the 'Network Service' account?
...the computer will have a service account that has permissions to do practically anything (more specifically the superset of all of the different additional privileges granted to that account).
It is always preferable from a security perspective to run as your own service account that has precisely ...