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How to write a large buffer into a binary file in C++, fast?
... fwrite(a, 1, size*sizeof(unsigned long long), pFile);
}
fclose(pFile);
return 0;
}
I just timed 8GB in 36sec, which is about 220MB/s and I think that maxes out my SSD. Also worth to note, the code in the question used one core 100%, whereas this code only uses 2-5%.
Thanks a l...
Format a Go string without printing?
...te: you may also display the result of a template execution if you provide os.Stdout as the target (which also implements io.Writer):
t := template.Must(template.New("email").Parse(emailTmpl))
if err := t.Execute(os.Stdout, data); err != nil {
panic(err)
}
This will write the result directly ...
Is JavaScript guaranteed to be single-threaded?
...e question of whether browsers really implement their JS engines using one OS-thread, or whether other limited threads-of-execution are introduced by WebWorkers.)
However, in reality this isn't quite true, in sneaky nasty ways.
The most common case is immediate events. Browsers will fire these rig...
Change IPython/Jupyter notebook working directory
...
Confirmed this does work on Mac OSX, for jupyterlab 0.31.5 / IPython 6.2.1
– Brad Solomon
Feb 11 '18 at 16:48
9
...
Detecting iOS / Android Operating system
...* Determine the mobile operating system.
* This function returns one of 'iOS', 'Android', 'Windows Phone', or 'unknown'.
*
* @returns {String}
*/
function getMobileOperatingSystem() {
var userAgent = navigator.userAgent || navigator.vendor || window.opera;
// Windows Phone must come fir...
What is bootstrapping?
...elopment. It seems both widespread and important, but I've yet to come across even a poor explanation of what bootstrapping actually is; rather, it seems as though everyone is just supposed to know what it means. I don't, though. Near as I can figure, it has something to do with initialization ta...
How to load external webpage inside WebView
...
Thanks to this post, I finally found the solution. Here is the code:
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebResourceError;
import android.webkit.WebResourceRequest;
import android.webkit.WebView;
imp...
Is there a way to cache GitHub credentials for pushing commits?
I recently switched to synchronizing my repositories to https:// on GitHub (due to firewall issues), and it asks for a password every time.
...
How can building a heap be O(n) time complexity?
...d you mean to start at the bottom of the heap?
– aste123
Dec 16 '15 at 18:14
4
@aste123 No, it is...
Disable browsers vertical and horizontal scrollbars
...
123
function reloadScrollBars() {
document.documentElement.style.overflow = 'auto'; // firefo...