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How does generic lambda work in C++14?
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Unfortunately, they are not part of C++11 (http://ideone.com/NsqYuq):
auto glambda = [](auto a) { return a; };
int main() {}
With g++ 4.7:
prog.cpp:1:24: error: parameter declared ‘auto’
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However, the way it might be implemented in C++14 as per the Portland p...
Make virtualenv inherit specific packages from your global site-packages
...t way pip will install what you've requested locally even though a system-wide version exists. Your python interpreter will look first in the virtualenv's package directory, so those packages should shadow the global ones.
s...
Chrome extension: accessing localStorage in content script
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The onChanged event already provides the data in the changes object. Further, pay special attention to the namespace of the onChanged event. If you store something using chrome.storage.local.set, then the onChanged event is triggered, but reading using chro...
Naming convention for utility classes in Java
When writing utility classes in Java, what are some good guidelines to follow?
5 Answers
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python: Change the scripts working directory to the script's own directory
...Do not mingle code and data.
Data is precious. Code comes and goes.
Provide the working directory as a command-line argument value. You can provide a default as an environment variable. Don't deduce it (or guess at it)
Make it a required argument value and do this.
import sys
import os
workin...
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...
Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit
...uld someone (client vs. server) be waiting for authentication?
Sorry, no ideas how to fix. Just debugging this, trying to find out what the problem is (-1021, -1001, -1009)
Update: Google search was very kind to find this:
-1001 TimedOut - it took longer than the timeout which was alotted.
-...
Read input from console in Ruby?
I want to write a simple A+B program in ruby, but I have no idea how to work with the console.
5 Answers
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Scrolling down both parts of a split-window at the same time in Vim
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Don’t know why but scrollbind! did not work for me, but invscrollbind did. A SUPER mapping. Thanks!
– UlfR
Jun 27 '14 at 10:50
add a...
How can I reset a react component including all transitively reachable state?
...eact components that are conceptually stateful which I want to reset. The ideal behavior would be equivalent to removing the old component and readding a new, pristine component.
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