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How can I propagate exceptions between threads?
...nt worker()
{
static std::atomic<int> hundreds(0);
const int start = 100 * hundreds++;
const int end = start + 100;
int sum = 0;
for (int i=start; i < end; ++i) {
if (is_prime(i)) { printf("%d is prime\n", i); sum += i; }
}
return sum;
}
int spawn_worker...
Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...项，记住，一定要把我们自己，也就是com.blogjava.youxia.rcp_start加进依赖项，否则会出错。最开始的时候，就是这么一点小问题，让我浪费了几天时间。
再点击添加必须的插件，自动添加其它的依赖项。
再下一步，...
Read a file in Node.js
...
Use path.join(__dirname, '/start.html');
var fs = require('fs'),
path = require('path'),
filePath = path.join(__dirname, 'start.html');
fs.readFile(filePath, {encoding: 'utf-8'}, function(err,data){
if (!err) {
console.log('r...
Android error: Failed to install *.apk on device *: timeout
...
I changed it to 10000ms. It threw the same error. Restarting the device worked in my case.
– nous
Feb 5 '15 at 21:38
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...
What does numpy.random.seed(0) do?
...d(4)
array([ 0.96, 0.38, 0.79, 0.53])
(pseudo-)random numbers work by starting with a number (the seed), multiplying it by a large number, adding an offset, then taking modulo of that sum. The resulting number is then used as the seed to generate the next "random" number. When you set the see...
How can I select every other line with multiple cursors in Sublime Text?
...the selections, leaving just the cursors: ←
You now have a cursor at the start of every odd-numbered line. If you wanted even-numbered lines, press down: ↓
Depending on the file, there might be one cursor missing right down the bottom of the file. Using the mouse (damn!) scroll to the bottom, ho...
How do I shuffle an array in Swift?
...ing methods for that version.
Swift 4.2+
shuffle and shuffled are native starting Swift 4.2. Example usage:
let x = [1, 2, 3].shuffled()
// x == [2, 3, 1]
let fiveStrings = stride(from: 0, through: 100, by: 5).map(String.init).shuffled()
// fiveStrings == ["20", "45", "70", "30", ...]
var numbe...
A non well formed numeric value encountered
I have a form that passes two dates (start and finish) to a PHP script that will add those to a DB. I am having problems validating this. I keep getting the following errors
...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
...egion");
let scr = q(".screen");
let send = q(".send");
let start=0;
let sx,sy,ex,ey=-1;
r.style.width=0;
r.style.height=0;
let drawBox= () => {
r.style.left = (ex > 0 ? sx : sx+ex ) +'px';
r.style.top = (ey > 0 ? sy : sy+ey) ...
How would I run an async Task method synchronously?
....RunSynchronously
.Net 4.0
Use this:
var x = (IAsyncResult)task;
task.Start();
x.AsyncWaitHandle.WaitOne();
...or this:
task.Start();
task.Wait();
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