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What is the “volatile” keyword used for?
...latestness" - inherently fake since a lock just force cores to arbitrarily select one speaker at a time w/o fairness - but rather try to design away the need for such an unnatural concept.
– AnorZaken
May 5 at 15:57
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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...', '2014-08-20 18:47:42');
Query OK, 2 rows affected (0.04 sec)
mysql> SELECT * FROM test;
+----+------+---------------------+
| id | data | ts |
+----+------+---------------------+
| 1 | New | 2014-08-20 18:47:42 |
+----+------+---------------------+
1 row in set (0.00 sec)
...
What is the difference between == and Equals() for primitives in C#?
... accepts the same type.
If you write age.Equals(newAge), the compiler will select int.Equals(int) as the best overload and implicitly convert short to int. It will then return true, since this method simply compares the ints directly.
short also has a short.Equals(short) method, but int cannot be im...
What is the proper way to display the full InnerException?
...s()
.Where(e => !String.IsNullOrWhiteSpace(e.Message))
.Select(e => e.Message.Trim());
string flattened = String.Join(Environment.NewLine, messages); // <-- the separator here
return flattened;
}
public static IEnumerable<Exception> GetAllExceptions(this Excep...
How to make/get a multi size .ico file? [closed]
...ultiple icon ico file for free.
Drag & drop the different icon sizes, select them all and choose file -> create multiple icon.
You can download if from http://www.towofu.net/soft/e-aicon.php
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Mark current Line, and navigate through marked lines
...ft+f2"], "command": "clear_bookmarks" },
{ "keys": ["alt+f2"], "command": "select_all_bookmarks" },
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How do I set a Windows scheduled task to run in the background? [closed]
...
As noted by Mattias Nordqvist in the comments below, you can also select the radio button option "Run whether user is logged on or not". When saving the task, you will be prompted once for the user password. bambams noted that this wouldn't grant System permissions to the process, and also ...
How to Set a Custom Font in the ActionBar Title?
...steps to change the font of Toolbar Title:
Read Downloadable Fonts & select any font from the list (my recommendation) or load a custom font to res > font as per Fonts in XML
In res > values > styles, paste the following (use your imagination here!)
<style name="TitleBarTextAppear...
What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...人民共和国',N'中华人民共和国'),
(N'abc',N'abc');
SELECT C1,
C2,
LEN(C1) AS [LEN(C1)],
DATALENGTH(C1) AS [DATALENGTH(C1)],
LEN(C2) AS [LEN(C2)],
DATALENGTH(C2) AS [DATALENGTH(C2)]
FROM @T
Returns
Note that the 华 and ...
Does Swift have documentation generation support?
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New in Xcode 8, you can select a method like this
func foo(bar: Int) -> String { ... }
Then press command + option + / or choose "Structure" - "Add documentation" from Xcode's "Editor" menu, and it will generate the following comments template...