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How to get my IP address programmatically on iOS/macOS?
...s). Loopback addresses now returned, but its easy for you to uncomment the test to exclude them yourself.
EDIT2: (by some unknown person): Improved further March 13, 2015: In case the user uses a VPN (regardless over WiFi or Cellular), the previous code would have failed. Now, it works even with VP...
What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
... variadic template expansion followed by a C-style varargs list.
Here's a test supporting that theory… I think we have a new winner for worst pseudo-operator ever.
Edit: This does appear to be conformant. §8.3.5/3 describes one way to form the parameter list as
parameter-declaration-listopt...
str performance in python
... 7 RETURN_VALUE
Of course the above is true for the system I tested on (CPython 2.7); other implementations may differ.
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Meaning of 'const' last in a function declaration of a class?
... member_;
}
private:
mutable int state_;
int member_;
};
The test
int main()
{
const A a1;
a1.badGetter(); // doesn't work
a1.goodGetter(); // works
a1.hashGetter(); // works
A a2;
a2.badGetter(); // works
a2.goodGetter(); // works
a2.hashGetter(); // ...
How to turn off INFO logging in Spark?
...
Inspired by the pyspark/tests.py I did
def quiet_logs(sc):
logger = sc._jvm.org.apache.log4j
logger.LogManager.getLogger("org"). setLevel( logger.Level.ERROR )
logger.LogManager.getLogger("akka").setLevel( logger.Level.ERROR )
Calling...
How do I get indices of N maximum values in a NumPy array?
...a,-K)[-K:]
array([4, 1, 5, 6])
Credits go to this question.
I ran a few tests and it looks like argpartition outperforms argsort as the size of the array and the value of K increase.
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Passing a 2D array to a C++ function
...ich are more safer, cleaner and perhaps faster.
Here's a driver program to test the above functions:
#include <iostream>
// copy above functions here
int main()
{
int a[5][10] = { { } };
process_2d_array_template(a);
process_2d_array_pointer(&a); // <-- notice the unusu...
PHP abstract properties
...
As you could have found out by just testing your code:
Fatal error: Properties cannot be declared abstract in ... on line 3
No, there is not. Properties cannot be declared abstract in PHP.
However you can implement a getter/setter function abstract, this...
Get Folder Size from Windows Command Line
...7.| DIR: d:/go/api | SIZE: 6.41 Mb | DEPTH: 2
8.| DIR: d:/go/test | SIZE: 5.11 Mb | DEPTH: 2
9.| DIR: d:/go/doc | SIZE: 4.00 Mb | DEPTH: 2
10.| DIR: d:/go/misc | SIZE: 3.82 Mb | DEPTH: 2
11.| DIR: d:/go/lib | SIZE: 358.25 Kb | DEPTH: 2
...
How to create NS_OPTIONS-style bitmask enumerations in Swift?
...nerator to create a Swift option set without all the find/replacing.
Latest: Modifications for Swift 1.1 beta 3.
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