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How to get the Parent's parent directory in Powershell?
...ndly a way as possible):
String objects that point to valid paths can be converted to DirectoryInfo/FileInfo objects via functions like Get-Item and Get-ChildItem.
.Parent can only be used on a DirectoryInfo object.
.Directory converts FileInfo object to a DirectoryInfo object, and will return nul...
How can I check if an ip is in a network in Python?
...ong integer"
return (2L<<n-1) - 1
def dottedQuadToNum(ip):
"convert decimal dotted quad string to long integer"
return struct.unpack('L',socket.inet_aton(ip))[0]
def networkMask(ip,bits):
"Convert a network address to a long integer"
return dottedQuadToNum(ip) & make...
bool to int conversion
...s (Integral Conversion)
If the source type is bool, the value false is converted to zero and
the value true is converted to one.
As for C, as far as I know there is no bool in C. (before 1999) So bool to int conversion is relevant in C++ only. In C, 4<5 evaluates to int value, in this c...
Convert List to List
... is to iterate over the list and cast the elements. This can be done using ConvertAll:
List<A> listOfA = new List<C>().ConvertAll(x => (A)x);
You could also use Linq:
List<A> listOfA = new List<C>().Cast<A>().ToList();
...
How to do Base64 encoding in node.js?
...
@DavidCallanan atob() converts from base64
– 12Me21
Apr 14 at 14:47
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What are the differences between numpy arrays and matrices? Which one should I use?
...at the expense of the other,
since np.asmatrix and np.asarray allow you to convert one to the other (as
long as the array is 2-dimensional).
There is a synopsis of the differences between NumPy arrays vs NumPy matrixes here.
...
Difference between Repository and Service Layer?
...d of returning viewmodel from the service layer, you should return DTO and convert that into viewModels using automapper.. sometimes they're the same, when they're not you'll be thankful you've implemented YGTNI "You're Going To Need It"
– hanzolo
May 30 '14 at...
What does void* mean and how to use it?
...
A pointer to void is a "generic" pointer type. A void * can be converted to any other pointer type without an explicit cast. You cannot dereference a void * or do pointer arithmetic with it; you must convert it to a pointer to a complete data type first.
void * is often used in places ...
How can I make a Python script standalone executable to run without ANY dependency?
...
You can use py2exe as already answered and use Cython to convert your key .py files in .pyc, C compiled files, like .dll in Windows and .so on Linux.
It is much harder to revert than common .pyo and .pyc files (and also gain in performance!).
...
When does invoking a member function on a null instance result in undefined behavior?
... perform lvalue-to-rvalue conversion?
Regardless, it definitely cannot be converted to an rvalue (§4.1/1):
If the object to which the lvalue refers is not an object of type T and is not an object of a type derived from T, or if the object is uninitialized, a program that necessitates this conv...