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How to declare std::unique_ptr and what is the use of it?
...t> p = make_unique<int>(42);
// Going out of scope...
}
// I did not leak my integer here! The destructor of unique_ptr called delete
Now unique_ptr is a smart pointer that models unique ownership, meaning that at any time in your program there shall be only one (owning) pointer to th...
Django CharField vs TextField
...not being able to use the field in WHERE statements. Just something to consider.
– Rob
Jul 10 '15 at 20:00
4
...
Difference between framework and static library in xcode4, and how to call them
...
@GoRoS yes I do; in fact I just did some work for a client making their private SDK available using CocoaPods. The trick is to have a public repo with the compiled static library, headers and podspec pointing at this and a private repo with your source. Idea...
Color in git-log
...ows the commit at the tip of the current branch e.g. "HEAD -> master", did not work with --decorate=full.
Git 2.9.x+ (Q3 2016) will fix another bug and honor color=auto for %C(auto)
Git 2.10.2 (Oct. 2016) fixes other bugs with commit 82b83da (29 Sep 2016), and commit c99ad27 (17 Sep 2016)...
Named regular expression group “(?Pregexp)”: what does “P” stand for?
... mine: I've always thought it stood for Python. That may sound pretty stupid -- what, P for Python?! -- but in my defense, I vaguely remembered this thread [emphasis mine]:
Subject: Claiming (?P...) regex syntax extensions
From: Guido van Rossum (gui...@CNRI.Reston.Va.US)
Date: Dec 1...
What is the difference between `sorted(list)` vs `list.sort()`?
...5244, 2.8019039630889893, 2.849375009536743]
After some feedback, I decided another test would be desirable with different characteristics. Here I provide the same randomly ordered list of 100,000 in length for each iteration 1,000 times.
import timeit
setup = """
import random
random.seed(0)
l...
How exactly does a generator comprehension work?
...type 'generator' has no len()
>>> # We extract each item out individually. We'll do it manually first.
...
>>> next(filtered_gen)
5
>>> next(filtered_gen)
9
>>> next(filtered_gen)
6
>>> next(filtered_gen) # Should be all out of items and give an error
Tr...
Detect encoding and make everything UTF-8
...ve a mix of them. Encoding::toUTF8() will convert everything to UTF-8.
I did it because a service was giving me a feed of data all messed up, mixing UTF-8 and Latin1 in the same string.
Usage:
require_once('Encoding.php');
use \ForceUTF8\Encoding; // It's namespaced now.
$utf8_string = Encoding...
Inherit from a generic base class, apply a constraint, and implement an interface in C#
...
@Visser yeah, what bwing said, also each where clause can have multiple constraints… so the syntax from the original post is correct, it just means something different that the op wanted. where T2 : IBar, IFoo just means that T2 has to implement bot...
What's the false operator in C# good for?
...
You can use it to override the && and || operators.
The && and || operators can't be overridden, but if you override |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&a...