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How is “=default” different from “{}” for default constructor and destructor?
I originally posted this as a question only about destructors, but now I'm adding consideration of the default constructor. Here's the original question:
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How to know/change current directory in Python shell?
...user'
>>> os.chdir("/tmp/")
>>> os.getcwd()
'/tmp'
But if it's about finding other modules: You can set an environment variable called PYTHONPATH, under Linux would be like
export PYTHONPATH=/path/to/my/library:$PYTHONPATH
Then, the interpreter searches also at this place for ...
What is the most efficient Java Collections library? [closed]
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Hey, Jon, Google Java Collections is now Guava. You might want to update your post for future references :)
– Artur Czajka
Oct 25 '11 at 18:24
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UITableViewHeaderFooterView: Unable to change background color
...he only way to set any color (with any alpha) is to use backgroundView:
Swift
self.backgroundView = UIView(frame: self.bounds)
self.backgroundView.backgroundColor = UIColor(white: 0.5, alpha: 0.5)
Obj-C
self.backgroundView = ({
UIView * view = [[UIView alloc] initWithFrame:self.bounds];
...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...e of rmdir contains a decent implementation:
function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (is_dir($dir. DIRECTORY_SEPARATOR .$object) && !is_link($d...
The server committed a protocol violation. Section=ResponseStatusLine ERROR
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anyone know why this safety measure is imposed by IIS? It worked, but I don't understand the reason for the restriction on header values (manually setting them in my case).
– emran
Feb 19 '14 at...
Trusting all certificates with okHttp
...lient() {
try {
// Create a trust manager that does not validate certificate chains
final TrustManager[] trustAllCerts = new TrustManager[] {
new X509TrustManager() {
@Override
public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String aut...
How can I get column names from a table in Oracle?
...:
describe EVENT_LOG
or
desc EVENT_LOG
Note: only applicable if you know the table name and specifically for Oracle.
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How do I programmatically click a link with javascript?
... case that's in the question, where I want to click a link. The link leads nowhere, but has other things tied to the click event. I don't want to change location.
– Random Elephant
Jan 8 at 13:03
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Run a Docker image as a container
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The specific way to run it depends on whether you gave the image a tag/name or not.
$ docker images
REPOSITORY TAG ID CREATED SIZE
ubuntu 12.04 8dbd9e3...