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How do I convert struct System.Byte byte[] to a System.IO.Stream object in C#?
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There's extra space allocated in the MemoryStream buffer by default (just like with e.g. a list). This can be dealt with easily by using the overload that allows you to set capacity, but is only really useful if you don't expect to write any dat...
Encrypt Password in Configuration Files? [closed]
... Never use it for that. These days, Argon2 is best. See owasp.org/index.php/Password_Storage_Cheat_Sheet and paragonie.com/blog/2016/02/how-safely-store-password-in-2016
– Kimball Robinson
Jul 22 '16 at 18:52
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Run JavaScript code on window close or page refresh?
...load", logData, false);
function logData() {
navigator.sendBeacon("/log.php", analyticsData);
}
sendBeacon() is supported in:
Edge 14
Firefox 31
Chrome 39
Safari 11.1
Opera 26
iOS Safari 11.4
It is NOT currently supported in:
Internet Explorer
Opera Mini
Here is a polyfill for sendBeaco...
Parsing query strings on Android
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import org.eclipse.jetty.util.*;
URL url = new URL("www.example.com/index.php?foo=bar&bla=blub");
MultiMap<String> params = new MultiMap<String>();
UrlEncoded.decodeTo(url.getQuery(), params, "UTF-8");
assert params.getString("foo").equals("bar");
assert params.getString("bla").equ...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...the original one on which client initially tried to connect. If any server allocates different server-ports after a socket is bound, then in my opinion the server is wasting its resource and it must be needing the client to connect again to the new port assigned.
A bit more for completeness:
Examp...
How can I convert bigint (UNIX timestamp) to datetime in SQL Server?
... want to go reverse, take a look at this http://wiki.lessthandot.com/index.php/Epoch_Date
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Why can't I define a default constructor for a struct in .NET?
... new MyStruct[1000];
The CLR is able to do this very efficiently just by allocating the appropriate memory and zeroing it all out. If it had to run the MyStruct constructor 1000 times, that would be a lot less efficient. (In fact, it doesn't - if you do have a parameterless constructor, it doesn't...
How is the Linux kernel tested ?
.../debug/kmemleak.
Kmemcheck traps every read and write to memory that was allocated dynamically (i.e. with kmalloc()). If a memory address is read that has not previously been written to, a message is printed to the kernel log. Also is a part of Linux Kernel
Fault Injection Framework (included in ...
Fast and Lean PDF Viewer for iPhone / iPad / iOS - tips and hints?
...n methods:
QLPreviewController *previewController = [[QLPreviewController alloc] init];
previewController.dataSource = self;
previewController.delegate = self;
previewController.currentPreviewItemIndex = indexPath.row;
[self presentModalViewController:previewController animated:YES];
[previewContro...
What is the usefulness of `enable_shared_from_this`?
...tle form. When it is constructed, the shared_ptr object sp1 owns the newly allocated resource. The code inside the member function S::dangerous doesn't know about that shared_ptr object, so the shared_ptr object that it returns is distinct from sp1. Copying the new shared_ptr object to sp2 doesn't h...