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Swift Beta performance: sorting arrays
..., 2, 2, 5, 8, 1234]
Both are called in the same program as written.
var x_swift = CInt[](count: n, repeatedValue: 0)
var x_c = CInt[](count: n, repeatedValue: 0)
for var i = 0; i < n; ++i {
x_swift[i] = CInt(random())
x_c[i] = CInt(random())
}
let swift_start:UInt64 = mach_absolute_ti...
How to dynamic new Anonymous Class?
In C# 3.0 you can create anonymous class with the following syntax
3 Answers
3
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How do lexical closures work?
While I was investigating a problem I had with lexical closures in Javascript code, I came along this problem in Python:
9 ...
Set a default parameter value for a JavaScript function
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@SiPlus and you got extra reference errors for free of charge while trying to use undefined objects :p Even while it may work with some browsers and might be faster, null is still an object and undefined is reference to primitive type that is try...
python max function using 'key' and lambda expression
I come from OOP background and trying to learn python.
I am using the max function which uses a lambda expression to return the instance of type Player having maximum totalScore among the list players .
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How do I declare a 2d array in C++ using new?
...f T" and be an incomplete type, while T[][] would be an invalid type (all except the last dimensions must have a known size). T[N][M] is "array [N] of array[M] of T", while yours, T[sizeX] is "array [sizeX] of T" where T is a pointer to an int. Creating a dynamically 2d array works like this: new in...
How to scale down a range of numbers with a known min and max value
... to be in a range of say 1-30. I have methods that find the minimum and maximum values from my data set, but I won't have the min and max until runtime. Is there an easy way to do this?
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C# Convert List to Dictionary
...
Try this:
var res = list.ToDictionary(x => x, x => x);
The first lambda lets you pick the key, the second one picks the value.
You can play with it and make values differ from the keys, like this:
var res = list.ToDictionary(x => x, x => string.Fo...
How to convert an array of strings to an array of floats in numpy?
...array of strings, there's a better way. Use astype().
import numpy as np
x = np.array(['1.1', '2.2', '3.3'])
y = x.astype(np.float)
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Why use pointers? [closed]
...re you cannot use anything else. In C you don't have any support for complex datatypes such as a string. There are also no way of passing a variable "by reference" to a function. That's where you have to use pointers. Also you can have them to point at virtually anything, linked lists, members of st...