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Concept of void pointer in C programming
...ferent type without an explicit cast:
void abc(void *a, int b)
{
int *test = a;
/* ... */
This doesn't help with writing your function in a more generic way, though.
You can't dereference a void * with converting it to a different pointer type as dereferencing a pointer is obtaining the ...
What reason is there to use null instead of undefined in JavaScript?
...ince I started with JavaScript 15 years ago) is that you too often have to test undefined and null. This is still really annoying. I avoid assigning a variable to null just to reduce the number of extra null testing.
– G Man
May 3 '17 at 8:35
...
Convert string to binary in python
...o format this in binary, the string.format() method will do the job.
a = "test"
print(' '.join(format(ord(x), 'b') for x in a))
(Thanks to Ashwini Chaudhary for posting that code snippet.)
While the above code works in Python 3, this matter gets more complicated if you're assuming any encoding o...
Can you connect to Amazon ElastiСache Redis outside of Amazon?
...u can't without resorting to 'tricks' such as a tunnel, which maybe OK for testing but will kill any real benefit of using a super-fast cache with the added latency/overhead.
...an Amazon ElastiCache Cluster, inside or outside a VPC, is never
allowed to be accessed from the Internet.
From h...
Using Node.JS, how do I read a JSON file into (server) memory?
...o your JSON file.
For example, suppose you have the following JSON file.
test.json
{
"firstName": "Joe",
"lastName": "Smith"
}
You can then easily load this in your node.js application using require
var config = require('./test.json');
console.log(config.firstName + ' ' + config.lastName);...
How does one change the language of the command line interface of Git?
... To verify that the .bashrc gets executed successfully you could add an test like echo "This is .bashrc"to the end of the file. You can also get have it executed on demand without having to restart the terminal or the whole system by . .bashrc. Finally, I would suggest trying to set the LC_ALL en...
“To Do” list before publishing Android app to market [closed]
...stack traces) that happens on the user side.
Ask your friends to do monkey tests, learning from users usually brings many good things (such as priorities and new ideas).
Consider publishing your app before having finished all features (most important feature only), you don't already know what your u...
fastest MD5 Implementation in JavaScript
...e.
Does anybody know which one is the most advanced, most bugfixed and fastest?
18 Answers
...
Python, Unicode, and the Windows console
...latforms. You'll be able to redirect the output to a file.
Below code was tested with Python 2.6 on Windows.
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import codecs, sys
reload(sys)
sys.setdefaultencoding('utf-8')
print sys.getdefaultencoding()
if sys.platform == 'win32':
try:
imp...
CursorLoader usage without ContentProvider
...
My observation in quick testing is that registerContentObserver will only be called against the cursor if the cursor is targeted to a Content Provider. Can you confirm/deny this?
– Nick Campion
Dec 19 '12 at 3:...