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When would I use Task.Yield()?
... await Task.Yield();
// now we're on the dialog's nested message loop started by dialog.ShowDialog
MessageBox.Show("The dialog is visible, click OK to close");
dialog.Close();
await dialogTask;
// we're back to the main message loop
}
That said, I can't think of any case w...
Parsing command-line arguments in C?
...mand line options, docopt infers and creates an argument parser. This got started in python; the python version literally just parses the docstring and returns a dict. To do this in C takes a little more work, but it's clean to use and has no external dependencies.
...
Storing JSON in database vs. having a new column for each key
...what might have been added if we stuck to traditional columns. So then we started fishing certain key values back out into columns so that we could make joins and make comparisons between values. Bad idea. Now we had duplication. A new developer would come on board and be confused? Which is the...
How to force the browser to reload cached CSS/JS files?
... The file to be loaded. Must be an absolute path (i.e.
* starting with slash).
*/
function auto_version($file)
{
if(strpos($file, '/') !== 0 || !file_exists($_SERVER['DOCUMENT_ROOT'] . $file))
return $file;
$mtime = filemtime($_SERVER['DOCUMENT_ROOT'] . $file);
return p...
Difference between UTF-8 and UTF-16?
...character may occupy a minimum of 8 bits, while in UTF-16 character length starts with 16 bits.
Main UTF-8 pros:
Basic ASCII characters like digits, Latin characters with no accents, etc. occupy one byte which is identical to US-ASCII representation. This way all US-ASCII strings become valid UTF...
How to have no pagebreak after \include in LaTeX
...
The reason that \include start a new page is that \includeonly can work properly.
– Carsten S
May 8 '14 at 7:21
...
How do I add a submodule to a sub-directory?
...
Note that starting git1.8.4 (July 2013), you wouldn't have to go back to the root directory anymore.
cd ~/.janus/snipmate-snippets
git submodule add <git@github ...> snippets
(Bouke Versteegh comments that you don't have to ...
What is the difference between char s[] and char *s?
...age duration, meaning that the memory for it is allocated when the program starts up and remains allocated until the program terminates. Attempting to modify the contents of a string literal invokes undefined behavior.
The line
char *s0 = "hello world";
defines s0 as a pointer to char with au...
A fast method to round a double to a 32-bit int explained
... the original 8086/8087, this wasn't too bad, but on later processors that started to get super-scalar and out-of-order execution, altering the fp rounding mode generally seriales the CPU core and is quite expensive. So on a CPU like a Pentium-III or Pentium-IV, this overall cost is quite high -- a...
Fast Linux File Count for a large number of files
...-f | wc -l
Note that this will also enable -a, so ., .., and other files starting with . will be counted.
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