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Unresolved external symbol on static class members
...got was to mark my class definition __declspec(dllexport), and when called from another class (outside that class's dll's boundaries), I of course got the my unresolved external error.
Still, easy to forget when you're changing an internal helper class to a one accessible from elsewhere, so if you'r...
What is the purpose of a self executing function in javascript?
...ght solve our problem. Everything is now enclosed and can only be accessed from within our opening and closing braces.
We have a function in a function... which is weird to look at, but totally legal.
Only one problem. Our code doesn't work.
Our userName variable is never echoed into the console! ...
What does 'synchronized' mean?
...s and resources. This is not a trivial topic in Java, but here is a quote from Sun:
synchronized methods enable a simple
strategy for preventing thread
interference and memory consistency
errors: if an object is visible to
more than one thread, all reads or
writes to that object's var...
Would it be beneficial to begin using instancetype instead of id?
...Data: there. Other examples exist, such as length, which returns a CGFloat from UILayoutSupport but a NSUInteger from NSString.)
Note: Since I wrote this, the macOS headers have been modified to return a NSFileHandle instead of an id.
For initializers, it's more complicated. When you type this:
-...
How to extract public key using OpenSSL?
...@makenova This will regenerate the key in key.pem, which could prevent you from logging into instances that require that key!
– SubmittedDenied
May 1 '17 at 17:42
...
Programmatically scroll a UIScrollView
...y: y), animated: true)
See the guide "Scrolling the Scroll View Content" from Apple as well.
To do slideshows with UIScrollView, you arrange all images in the scroll view, set up a repeated timer, then -setContentOffset:animated: when the timer fires.
But a more efficient approach is to use 2 im...
How to configure static content cache per folder and extension in IIS7?
...ite useful. The Wrox Pro IIS7 book isn't bad either. TBH I learned mostly from the IIS.NET config reference site: iis.net/ConfigReference and from poking about the %systemroot%\system32\inetsrv\config\applicationhost.config file and related friends.
– Kev
Nov ...
Bug With Firefox - Disabled Attribute of Input Not Resetting When Refreshing
...aining the inputs, or just directly to the input.
This stops autocomplete from working and prevents the browser from remembering the state of input fields.
Alternatively, you can just "hard-refresh" by clicking CTRL+F5. This will completely reset the current page.
...
Why is \r a newline for Vim?
From question How to replace a character for a newline in Vim? . You have to use \r when replacing text for a newline, like this
...
When and how should I use a ThreadLocal variable?
...eople can abuse it by using it as global variables.
I have copied the text from the mentioned book but code 3.10 is missing as it is not much important to understand where ThreadLocal should be use.
Thread-local variables are often used to prevent sharing in designs based on mutable Singletons or g...