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Java switch statement: Constant expression required, but it IS constant
...oesn't include any form of method or lambda calls, new, .class. .length or array subscripting. Furthermore, any use of array values, enum values, values of primitive wrapper types, boxing and unboxing are all excluded because of a).
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Difference between size_t and unsigned int?
...chosen so that it could store the maximum size
of a theoretically possible array of any type. On a
32-bit system size_t will take 32 bits, on a 64-
bit one 64 bits. In other words, a variable of
size_t type can safely store a pointer. The
exception is pointers to class functions but this
is a specia...
Passing an integer by reference in Python
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A numpy single-element array is mutable and yet for most purposes, it can be evaluated as if it was a numerical python variable. Therefore, it's a more convenient by-reference number container than a single-element list.
import numpy as np
...
How to copy a file to a remote server in Python using SCP or SSH?
...ng subprocess.Popen is the Right Thing. Passing it a string rather than an array (and using shell=True) is the Wrong Thing, as it means filenames with spaces don't work correctly.
– Charles Duffy
Oct 15 '08 at 12:07
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...e the prototype method
Class.prototype.calc = function () {
var args = Array.prototype.slice.apply(arguments),
res = 0, c;
while (c = args.shift())
res += c;
return res;
}
// Test the calc method:
console.log(ins1.calc(1,1,1), ins2.calc(1,1,1));
// -> 3, 3
Notice...
How do cache lines work?
...ory, L3 notifies the L2 that the line is ready, and copies it into its own array.
– Peter Cordes
Sep 1 '16 at 0:47
2
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How do I get a substring of a string in Python?
...r completeness as nobody else has mentioned it. The third parameter to an array slice is a step. So reversing a string is as simple as:
some_string[::-1]
Or selecting alternate characters would be:
"H-e-l-l-o- -W-o-r-l-d"[::2] # outputs "Hello World"
The ability to step forwards and backward...
How to calculate the number of days between two dates? [duplicate]
...= '2011-12-24';
var date2 = '2012-01-01';
// First we split the values to arrays date1[0] is the year, [1] the month and [2] the day
date1 = date1.split('-');
date2 = date2.split('-');
// Now we convert the array to a Date object, which has several helpful methods
date1 = new Date(date1[0], date1[...
MongoDB and “joins” [duplicate]
...eld from the documents of the "from" collection>,
as: <output array field>
}
}
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Where do I use delegates? [closed]
...gate is the Predicate. In the example from the link, you will notice that Array.Find takes the array to search and then a predicate to handle the criteria of what to find. In this case it passes a method ProductGT10 which matches the Predicate signature.
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