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Any idea why I need to cast an integer literal to (int) here?
...ns due to auto-boxing. We went as far as treating auto-boxing as errors in order to save headaches in the future. Magic is nice, but when it fails, heads hurt. I find it is better to be explicit and save yourself the headaches.
– Krystian Cybulski
Oct 26 '11 at...
Foreign key constraints: When to use ON UPDATE and ON DELETE
... "I wouldn't want a customer delete to wipe out the financial data for the orders he had previously." In a situation like that, you probably still need the customer's data anyway. Your design should probably be marking the customer as inactive, not deleting their row from the database. In practice...
How to disable XDebug
I think that my server became slow since I installed XDebug.
So, in order to test my hypothesis I want to disable XDebug completely.
I've been searching for tutorials on how to do this but I can't find such information.
...
Live-stream video from one android phone to another over WiFi
...o need them to be in your app, however, you will have to look into MediaRecorder API (for the server/camera app) and MediaPlayer (for client/player app).
Quick sample code for the server:
// this is your network socket
ParcelFileDescriptor pfd = ParcelFileDescriptor.fromSocket(socket);
mCamera = g...
What do all of Scala's symbolic operators mean?
...
Every Scala code has three automatic imports:
// Not necessarily in this order
import _root_.java.lang._ // _root_ denotes an absolute path
import _root_.scala._
import _root_.scala.Predef._
The first two only make classes and singleton objects available. The third one contains all implicit...
REST Complex/Composite/Nested Resources [closed]
... be like tweaking your object model (your conceptual or business model) in order to fit a technology. Not a great idea.
You should weigh these two choices against simply allowing coverless comics.
Which of the three choices should you take? Not knowing too much about your situation, but answer ...
Build an iOS app without owning a mac? [closed]
...M Name" "VBoxInternal/Devices/efi/0/Config/DmiSystemSerial" W1234567980 in order to get able to login using my Apple ID
– ikleiman
Oct 15 '18 at 23:13
1
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What's the idiomatic syntax for prepending to a short python list?
... element will be prepended one at a time, thus effectively reversing their order.
Performance of list versus deque
First we setup with some iterative prepending:
import timeit
from collections import deque
def list_insert_0():
l = []
for i in range(20):
l.insert(0, i)
def list_s...
How to write a large buffer into a binary file in C++, fast?
...
Try the following, in order:
Smaller buffer size. Writing ~2 MiB at a time might be a good start. On my last laptop, ~512 KiB was the sweet spot, but I haven't tested on my SSD yet.
Note: I've noticed that very large buffers tend to decrease pe...
How to encrypt/decrypt data in php?
... = openssl_random_pseudo_bytes(openssl_cipher_iv_length("AES-256-CBC")) in order to indicate the link between iv's size to use with the cipher used. You could also expand a bit on the need (or not) of pkcs7_pad()/pkcs7_unpad(), or just simplify the post by getting rid of them and use "aes-256-ctr". ...