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iPhone Data Usage Tracking/Monitoring

...istics for each network interface. In general en0 is your Wi-Fi interface and pdp_ip0 is your WWAN interface. There is no good way to get information wifi/cellular network data since, particular date-time! Data statistic (ifa_data->ifi_obytes and ifa_data->ifi_ibytes) are stored from prev...
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How to check command line parameter in “.bat” file?

... I need to have a ".bat" file where I need to check if user enters any command-line parameter or not. If does then if the parameter equals to -b then I will do something otherwise I will flag "Invalid input". If user does not enter any command-line parameter then I will do something. I have crea...
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Beginner's guide to ElasticSearch [closed]

There hasn't been any books about ElasticSearch (that I know of), and http://www.elasticsearch.org/guide/ seems to contain only references. ...
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How do you remove the root CA certificate that fiddler installs

...o Tools -> Fiddler Options -> HTTPS. Then click the "Actions" button and then "Reset All Certificates" It will popup a message that it could take a while but it's really quick. Approve all popups and there you go. Pay attention not to re-approve the certificate again (when I did it the message...
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What does && mean in void *p = &&abc;

... defined in the current function. void *p = &&abc is illegal in standard C99 and C++. This compiles with g++. share | improve this answer | follow | ...
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How to use WHERE IN with Doctrine 2

...nd something that will be important to anyone running into this same issue and looking for a solution. From the original post, the following line of code: $qb->add('where', $qb->expr()->in('r.winner', array('?1'))); Wrapping the named parameter as an array causes the bound parameter num...
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How do I call Objective-C code from Swift?

...t If you have an existing class that you'd like to use, perform Step 2 and then skip to Step 5. (For some cases, I had to add an explicit #import <Foundation/Foundation.h to an older Objective-C File.) Step 1: Add Objective-C Implementation -- .m Add a .m file to your class, and name it Cu...
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Where do “pure virtual function call” crashes come from?

...e general case can't catch it since the flow from the ctor can go anywhere and anywhere can call the pure virtual function. This is Halting problem 101. – shoosh Sep 19 '08 at 4:20 ...
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Redis command to get all available keys?

Is there a Redis command for fetching all keys in the database? I have seen some python-redis libraries fetching them. But was wondering if it is possible from redis-client. ...
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How to customize the background/border colors of a grouped table view cell?

I would like to customize both the background and the border color of a grouped-style UITableView. 11 Answers ...