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Difference between decimal, float and double in .NET?
...-8, while decimal will conflate 0.1 and 0.1 + 1e-29. Sure, within a given range, certain values can be represented in any format with zero loss of accuracy (e.g. float can store any integer up to 1.6e7 with zero loss of accuracy) -- but that's still not infinite accuracy.
– Da...
How do I build a numpy array from a generator?
...generator with numpy.stack:
>>> mygen = (np.ones((5, 3)) for _ in range(10))
>>> x = numpy.stack(mygen)
>>> x.shape
(10, 5, 3)
It also works for 1D arrays:
>>> numpy.stack(2*i for i in range(10))
array([ 0, 2, 4, 6, 8, 10, 12, 14, 16, 18])
Note that numpy.st...
Types in Objective-C on iOS
...oat));
NSLog(@"The size of a double is %d.", sizeof(double));
NSLog(@"Ranges:");
NSLog(@"CHAR_MIN: %c", CHAR_MIN);
NSLog(@"CHAR_MAX: %c", CHAR_MAX);
NSLog(@"SHRT_MIN: %hi", SHRT_MIN); // signed short int
NSLog(@"SHRT_MAX: %hi", SHRT_MAX);
NSLog(@"INT_MIN: %i", IN...
What is the difference between a strongly typed language and a statically typed language?
...time error. Weak: "c" + True = "b" or "d" because everything is treated as raw bytes. Strong: C#, Ruby, C++ Weak: Assembly, C (due to implicit void pointers)
– Jonathan Allen
Apr 23 '10 at 5:27
...
In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
... is a bit more subtle: DATETIME is formatted as YYYY-MM-DD HH:MM:SS. Valid ranges go from the year 1000 to the year 9999 (and everything in between. While TIMESTAMP looks similar when you fetch it from the database, it's really a just a front for a unix timestamp. Its valid range goes from 1970 to 2...
remove_if equivalent for std::map
I was trying to erase a range of elements from map based on particular condition. How do I do it using STL algorithms?
13 A...
Operation on every pair of element in a list
...here order is irrelevant:
result = [foo(people[p1], people[p2]) for p1 in range(len(people)) for p2 in range(p1+1,len(people))]
In case you don't want to operate but just to get the pairs, removing the function foo and using just a tuple would be enough.
All possible pairs, including duplicate...
For every character in string
...
Looping through the characters of a std::string, using a range-based for loop (it's from C++11, already supported in recent releases of GCC, clang, and the VC11 beta):
std::string str = ???;
for(char& c : str) {
do_things_with(c);
}
Looping through the characters of a std...
Python Empty Generator Function
...ng a hard time coming up with a use case for this for which iter([]) or (x)range(0) wouldn't work equally well.
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HttpServletRequest get JSON POST data [duplicate]
... a json data stream, you need to use a custom decoder that can process the raw datastream from:
BufferedReader reader = request.getReader();
Json post processing example (uses org.json package )
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletExceptio...