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Can't start Eclipse - Java was started but returned exit code=13
I am trying to get my first taste of Android development using Eclipse. I ran into this problem when trying to run Eclipse, having installed version 4.2 only minutes ago.
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Why I cannot cout a string?
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and also using namespace std or using std::cout; using std::endl;
– fardjad
Jun 12 '11 at 8:44
2
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best way to preserve numpy arrays on disk
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h5py example and pytables example
– Kamil Slowikowski
Sep 23 '16 at 13:15
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Timeout command on Mac OS X?
Is there an alternative for the timeout command on Mac OSx. The basic requirement is I am able to run a command for a specified amount of time.
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clang error: unknown argument: '-mno-fused-madd' (python package installation failure)
...5-16]: Apple has fixed this problem with updated system Pythons (2.7, 2.6, and 2.5) in OS X 10.9.3 so the workaround is no longer necessary when using the latest Mavericks and Xcode 5.1+. However, as of now, the workaround is still required for OS X 10.8.x (Mountain Lion, currently 10.8.5) if you a...
MySQL/SQL: Group by date only on a Datetime column
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Cast the datetime to a date, then GROUP BY using this syntax:
SELECT SUM(foo), DATE(mydate) FROM a_table GROUP BY DATE(a_table.mydate);
Or you can GROUP BY the alias as @orlandu63 suggested:
SELECT SUM(foo), DATE(mydate) ...
Handle Guzzle exception and get HTTP body
...bled across this in the docs: \GuzzleHttp\Psr7\str($e->getResponse()) Casting the response as a Psr7 String got me a nicely formatted and complete error message.
– Andy Place
Dec 20 '16 at 23:29
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Never seen before C++ for loop
...u--; is different from 0, it will be interpreted as true (i.e., implicitly casted to the boolean value true). If, instead, its value is 0, it will be casted to false.
This is very bad code.
Update: I discussed the writing of "for" loops in this blog post. Its recommendations can be summarized in t...
How to retrieve the current version of a MySQL database management system (DBMS)?
What command returns the current version of a MySQL database?
19 Answers
19
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Swift - How to convert String to Double
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For a little more Swift feeling, using NSFormatter() avoids casting to NSString, and returns nil when the string does not contain a Double value (e.g. "test" will not return 0.0).
let double = NSNumberFormatter().numberFromString(myString)?.doubleValue
Alternatively, extending Swif...