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How is std::function implemented?
...another, but the core idea is that it uses type-erasure. While there are multiple ways of doing it, you can imagine a trivial (not optimal) solution could be like this (simplified for the specific case of std::function<int (double)> for the sake of simplicity):
struct callable_base {
virtu...
Passing properties by reference in C#
...rson.Name == "test");
}
2. Delegate
void GetString(string input, Action<string> setOutput)
{
if (!string.IsNullOrEmpty(input))
{
setOutput(input);
}
}
void Main()
{
var person = new Person();
GetString("test", value => person.Name = value);
Debug.Assert(p...
Lombok annotations do not compile under Intellij idea [duplicate]
...
In order to solve the problem set:
Preferences (Ctrl + Alt + S)
Build, Execution, Deployment
Compiler
Annotation Processors
Enable annotation processing
Make sure you have the Lombok plugin for IntelliJ installed!
Preferences -> Plugins
Search for "Lombok Plugin...
How can I split a text into sentences?
...
The Natural Language Toolkit (nltk.org) has what you need. This group posting indicates this does it:
import nltk.data
tokenizer = nltk.data.load('tokenizers/punkt/english.pickle')
fp = open("test.txt")
data = fp.read()
print '\n-----\n'.join(tokenizer....
Example for boost shared_mutex (multiple reads/one write)?
I have a multithreaded app that has to read some data often, and occasionally that data is updated. Right now a mutex keeps access to that data safe, but it's expensive because I would like multiple threads to be able to read simultaneously, and only lock them out when an update is needed (the updat...
How to use phpexcel to read data and insert into database?
...;
// Loop through each row of the worksheet in turn
for ($row = 1; $row <= $highestRow; $row++){
// Read a row of data into an array
$rowData = $sheet->rangeToArray('A' . $row . ':' . $highestColumn . $row,
NULL,
...
Using ChildActionOnly in MVC
...e this attribute to prevent the action methods from being invoked as a result of a user
request.
Having defined an action method, we need to create what will be rendered when the action is
invoked. Child actions are typically associated with partial views, although this is not compulsory.
[ChildAc...
How to make layout with View fill the remaining space?
...since it does not use RelativeLayout.
I am giving my layout for clarity:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<Button
android:layout_width = "80dp"
android:lay...
Rails 4 - passing variable to partial
...
You need the full render partial syntax if you are passing locals
<%= render @users, :locals => {:size => 30} %>
Becomes
<%= render :partial => 'users', :collection => @users, :locals => {:size => 30} %>
Or to use the new hash syntax
<%= render partial:...
AngularJS ng-click stopPropagation
... reference to JS event object and can be used to call stopPropagation():
<table>
<tr ng-repeat="user in users" ng-click="showUser(user)">
<td>{{user.firstname}}</td>
<td>{{user.lastname}}</td>
<td>
<button class="btn" ng-click="delete...