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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 do I print debug messages in the Google Chrome JavaScript Console?
...e Log, you're potentially telling people how to hack/reverse engineer your app.
– Samuel MacLachlan
Nov 2 '15 at 8:03
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How do I get the current GPS location programmatically in Android?
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I have created a small application with step by step description to get current location's GPS coordinates.
Complete example source code is in Get Current Location coordinates , City name - in Android.
See how it works:
All we need to do is a...
GitHub Error Message - Permission denied (publickey)
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The upvote of using HTTPS instead of SSL is a bit disappointing. SSH is far more convenient. The suggestion from @MaximeBernard above solved the issue for me: GIT was not looking at the right place for the .ssh directory. Using ssh -vT git@github.com provides a lot of informati...
Check if SQL Connection is Open or Closed
...voiding. I can maybe see the use case for this code snippet in a stateful application layer, but never on the Web?
– John Zabroski
Apr 18 '14 at 16:32
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Serving gzipped CSS and JavaScript from Amazon CloudFront via S3
...s.type = "text/css";
scriptStyles.href = sr_css_file;
head.appendChild(scriptStyles);
//alert('adding css to header:'+sr_css_file);
}
}());
</script>
gzipcheck.js.jgz is just sr_gzipEnabled = true; This tests to make sure the browser can handle the gzipped code...
Switching between Android Navigation Drawer image and Up caret when using fragments
... but only handle the up caret for the onOptionsItemSelected.
In one of my apps I also needed to handle the behavior of the up caret when the back button was pressed. This can be handle by overriding onBackPressed.
@Override
public void onBackPressed() {
// Use getSupportFragmentManager() to su...
Software keyboard resizes background image on Android
Whenever the software keyboard appears, it resizes the background image. Refer to the screenshot below:
17 Answers
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How can I parse a CSV string with JavaScript, which contains comma in data?
...ular expression is then used to match one value from the CSV string. It is applied repeatedly until no more matches are found (and all values have been parsed).
Regular expression to parse one value from a valid CSV string:
re_value = r"""
# Match one value in valid CSV string.
(?!\s*$) ...
Render a string in HTML and preserve spaces and linebreaks
I have an MVC3 app that has a details page. As part of that I have a description (retrieved from a db) that has spaces and new lines. When it is rendered the new lines and spaces are ignored by the html. I would like to encode those spaces and new lines so that they aren't ignored.
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