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When are C++ macros beneficial? [closed]
...for debug functions, to automatically pass things like __FILE__, __LINE__, etc:
#ifdef ( DEBUG )
#define M_DebugLog( msg ) std::cout << __FILE__ << ":" << __LINE__ << ": " << msg
#else
#define M_DebugLog( msg )
#endif
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How to test which port MySQL is running on and whether it can be connected to?
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grep port /etc/mysql/my.cnf ( at least in debian/ubuntu works )
or
netstat -tlpn | grep mysql
verify
bind-address 127.0.0.1
in /etc/mysql/my.cnf to see possible restrictions
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How do I remove the blue styling of telephone numbers on iPhone/iOS?
...hone, and won't be applied (so far as I know, perhaps Android, Blackberry, etc. users/devs can comment) by any other UA.
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Execute code when Django starts ONCE only?
...but that is because runserver has some tricks to validate the models first etc ... normal deployments or even when runserver auto reloads, this is only executed once.
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How to get disk capacity and free space of remote computer
...ay 1 '15 at 17:48
Null Pointers etc.Null Pointers etc.
1,78622 gold badges1212 silver badges2020 bronze badges
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How to tell bash that the line continues on the next line
...lumns in length. What is the character or thing to be added to the line in order to indicate that the line continues on the next line?
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What is the largest TCP/IP network port number allowable for IPv4?
... considered a worst-case scenario. But today web servers, network devices, etc. can definitely bump up against port count limitations. Microsoft wrote an interesting Technet article about how to diagnose and avoid it in Windows environments: blogs.technet.microsoft.com/askds/2008/10/29/…
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How to split/partition a dataset into training and test datasets for, e.g., cross validation?
...t is not always an option, there are many cases where you have to keep the order of data inputs. And the 3rd one could very well produce the same indices for test and training (as pointed out by @ggauravr).
– pedram bashiri
Sep 17 '19 at 21:02
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JUnit test for System.out.println()
...e command line option (asserting that -version outputs the version string, etc etc)
Edit:
Prior versions of this answer called System.setOut(null) after the tests; This is the cause of NullPointerExceptions commenters refer to.
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How to determine if a point is in a 2D triangle? [closed]
...ding on wether the triangle is specified in clockwise or counter clockwise order.
– Andreas Brinck
Jan 12 '10 at 15:09
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