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How to toggle a boolean?
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edited May 21 at 19:24
answered Jul 22 '12 at 22:11
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Mutex example / tutorial? [closed]
...pt. Hope the example gives you a clear picture of the concept.]
With C++11 threading:
#include <iostream>
#include <thread>
#include <mutex>
std::mutex m;//you can use std::lock_guard if you want to be exception safe
int i = 0;
void makeACallFromPhoneBooth()
{
m.lock();/...
How to remove item from list in C#?
... used if you know the index of the item. For example:
resultlist.RemoveAt(1);
Or you can use Remove(T item):
var itemToRemove = resultlist.Single(r => r.Id == 2);
resultList.Remove(itemToRemove);
When you are not sure the item really exists you can use SingleOrDefault. SingleOrDefault will ...
indexOf method in an object array?
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1096
I think you can solve it in one line using the map function:
pos = myArray.map(function(e) {...
How to retrieve a user environment variable in CMake (Windows)
...cript
You can pass a variable on the line with the cmake invocation:
FOO=1 cmake
or by exporting a variable in BASH:
export FOO=1
Then you can pick it up in a cmake script using:
$ENV{FOO}
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Failed binder transaction when putting an bitmap dynamically in a widget
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91
This is caused because all the changes to the RemoteViews are serialised (e.g. setInt and setIma...
Executing periodic actions in Python [duplicate]
I am working on Windows. I want to execute a function foo() every 10 seconds.
9 Answers
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Importing data from a JSON file into R
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190
First install the rjson package:
install.packages("rjson")
Then:
library("rjson")
json_fil...