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Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
.... And even the worker thread with the inter-thread queue slows things down by a factor of 20 or so on Fedora 25 in a VM, and by about 8 on native OS X.
I created a Bitbucket project holding the code I used for the performance test. It can be found here: https://bitbucket.org/omnifarious/launch_thre...
iphone - how can i get the height and width of uiimage
...
Points. Multiply by the scale property to get the pixels.
– rmooney
Jun 28 '16 at 14:50
...
Good Hash Function for Strings
...ses would have the same hash.
Generally hashs take values and multiply it by a prime number (makes it more likely to generate unique hashes) So you could do something like:
int hash = 7;
for (int i = 0; i < strlen; i++) {
hash = hash*31 + charAt(i);
}
...
Docker can't connect to docker daemon
...machine on macOS
If you don't have docker-machine command yet, install it by using one of the following methods:
Using Brew command: brew install docker-machine docker.
manually from GitHub:
install -v <(curl https://github.com/docker/machine/releases/download/v0.5.3/docker-machine_linux-amd6...
Inheritance and Overriding __init__ in python
...the example I child still prints "Grandma". Isn't grandparent init handled by the Parent class?
– Adam
Apr 30 '14 at 22:17
4
...
How do you use Mongoose without defining a schema?
...u looking for Mongoose Strict
option: strict
The strict option, (enabled by default), ensures that values added to our model instance that were not specified in our schema do not get saved to the db.
Note: Do not set to false unless you have good reason.
var thingSchema = new Schema({..}, {...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...a catch block). If an error is thrown in handleErrorOne, it will be caught by the next catch block (catch(e2)), and so on.
This is obviously not what you intended.
Let's say we want the entire resolution chain to fail no matter what goes wrong:
stepOne()
.then(function(a) {
return stepTwo(a)....
Why do we use $rootScope.$broadcast in AngularJS?
...cast accept a parameter where you can pass an Object that will be received by $on using a callback function
Example:
// the object to transfert
var myObject = {
status : 10
}
$rootScope.$broadcast('status_updated', myObject);
$scope.$on('status_updated', function(event, obj){
console...
Consistency of hashCode() on a Java string
...ar what kind of portability you're talking about, nor indeed what you mean by "in this case" - in what specific scenario? I suspect you should ask a new question.
– Jon Skeet
Jun 19 '13 at 16:20
...
“Invalid signature file” when attempting to run a .jar
...th maven-shade-plugin, the solution is to exclude manifest signature files by adding the following lines to the plugin configuration:
<configuration>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<ex...