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Polymorphism in C++
... return *this; }
double n_;
};
void f(Base& x) { x += 2; } // run-time polymorphic dispatch
Other related mechanisms
Compiler-provided polymorphism for builtin types, Standard conversions, and casting/coercion are discussed later for completeness as:
they're commonly intuitively under...
sprintf like functionality in Python
...involved, it might be wise to use a StringIO object to speed up processing time.
So instead of doing +=, do this:
import cStringIO
buf = cStringIO.StringIO()
...
print >> buf, "A = %d\n , B= %s\n" % (A, B)
...
print >> buf, "C=%d\n" % c
...
print >> f, buf.getvalue()
...
How do you detect where two line segments intersect? [closed]
...two lines from A to B and from C to D intersect? Then you can ask it four times (between the line and each of the four sides of the rectangle).
Here's the vector math for doing it. I'm assuming the line from A to B is the line in question and the line from C to D is one of the rectangle lines. M...
Preferred order of writing latitude & longitude tuples in GIS services
...tude, longitude. This was presumably standardized by
the International Maritime Organization
as reported here. Google also uses this order in its Maps and Earth. I remember this order by thinking of alphabetic order of latitude, longitude.
...
How to split a string, but also keep the delimiters?
...esting approach. I am not sure it can be help consistently (with that, sometimes there is a delimiter, sometimes there is not), but +1 for the effort. However, you still need to properly address the limit cases (empty or null values)
– VonC
Nov 9 '08 at 20:11
...
Case insensitive regular expression without re.compile?
...e module, which I think was added in 1.5. Basically since the beginning of time for all intents and purposes when it comes to Python. It's documented about half way through the first section of this page: docs.python.org/2/library/re.html#regular-expression-syntax
– ArtOfWarfa...
Timer function to provide time in nano seconds using C++
I wish to calculate the time it took for an API to return a value.
The time taken for such an action is in the space of nano seconds. As the API is a C++ class/function, I am using the timer.h to caculate the same:
...
Large Numbers in Java
... performance speed is the same but the length of the number makes it takes time. they use bitwise operators to do the calculations. like what happens normally when doing math with primitive types.
– ZOLDIK
Aug 20 '19 at 11:29
...
How to convert an NSTimeInterval (seconds) into minutes
... amount of seconds that passed from a certain event. It's stored in a NSTimeInterval data type.
12 Answers
...
Programmatically Determine a Duration of a Locked Workstation?
... WTSClientDisplay = 15,
WTSClientProtocolType = 16,
WTSIdleTime = 17,
WTSLogonTime = 18,
WTSIncomingBytes = 19,
WTSOutgoingBytes = 20,
WTSIncomingFrames = 21,
WTSOutgoingFrames = 22,
WTSClientInfo = 23,
WTSSessionInfo = 24,
...