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Why should I prefer to use member initialization lists?
...estructor of “Type” is called for “a” since it goes out of scope.
Now consider the same code with MyClass() constructor with Initializer List
// With Initializer List
class MyClass {
Type variable;
public:
MyClass(Type a):variable(a) { // Assume that Type is an already
...
Is there a timeout for idle PostgreSQL connections?
...n wait for the message over queue and then perform some more dml operation.Now during that period i.e while it is waiting over queue(for message) as mention above even then the connection with postges is idle. why should i close it.
– Viren
Apr 15 '16 at 18:13
...
Sorting object property by values
...ing exactly what you set out to do. That would work in all the browsers I know of, but it would be dependent on an implementation quirk, and could break at any time. You should never make assumptions about the order of elements in a JavaScript object.
var objSorted = {}
sortable.forEach(function(ite...
The calling thread cannot access this object because a different thread owns it
...
I have the same problem as OP; My problem now is that the event causes now a stack overflow. :\
– Malavos
Jan 22 '14 at 12:14
2
...
PHP foreach change original array values
...ference (&) is ... controversial. I recommend not using it unless you know why you need it and test the results.
I would recommend doing the following:
foreach ($fields as $key => $field) {
if ($field['required'] && strlen($_POST[$field['name']]) <= 0) {
$fields[$key]...
Why does multiprocessing use only a single core after I import numpy?
....getpid())
With this line pasted in after the module imports, my example now runs on all cores:
My experience so far has been that this doesn't seem to have any negative effect on numpy's performance, although this is probably machine- and task-specific .
Update:
There are also two ways to di...
Get data from JSON file with PHP [duplicate]
...ntents():
$str = file_get_contents('http://example.com/example.json/');
Now decode the JSON using json_decode():
$json = json_decode($str, true); // decode the JSON into an associative array
You have an associative array containing all the information. To figure out how to access the values yo...
Disable password authentication for SSH [closed]
...n yes
to
ChallengeResponseAuthentication no
PasswordAuthentication no
Now generate the RSA key:
ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
(For me an RSA key worked. A DSA key did not work.)
A private key will be generated in ~/.ssh/id_rsa along with ~/.ssh/id_rsa.pub (public key).
Now move ...
What do linkers do?
I've always wondered. I know that compilers convert the code you write into binaries but what do linkers do? They've always been a mystery to me.
...
What is the advantage to using bloom filters?
...in the article). You populate your filter from this disk-bound data once.
Now you have the filter in RAM. When you need to process some element, you query your filter to see if it stands a chance of existing in your data set. If it doesn't, no extra work is done. No disk reads, etc. (Which you woul...