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How are virtual functions and vtable implemented?
...
@curiousguy: I'd file that under “the above is simplified in many ways”, particularly since the main application of virtual bases is multiple inheritance, which I didn't model either. But thanks for the comment, it's useful to have this h...
Why isn't String.Empty a constant?
... here in the Shared Source Common Language Infrastructure 2.0 Release. The file to look at is sscli20\clr\src\bcl\system\string.cs.
The Empty constant holds the empty
string value. We need to call the
String constructor so that the
compiler doesn't mark this as a
literal.
Marking th...
The Use of Multiple JFrames: Good or Bad Practice? [closed]
...ort as a PDF to a specific directory, using Acrobat Reader to open the PDF file, and then they would do the same with the next report. They would have multiple Acrobat Readers running with the various report outputs that they wanted to look at.
So I relented and made the viewer modeless. This means...
Why does Python code run faster in a function?
... technical detail about this optimization, here's a quote from the ceval.c file (the "engine" of Python's virtual machine):
Some opcodes tend to come in pairs thus making it possible to
predict the second code when the first is run. For example,
GET_ITER is often followed by FOR_ITER. And...
How to add a search box with icon to the navbar in Bootstrap 3?
...gt;
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.m...
How do I migrate a model out of one django app and into a new one?
... 0003_create_cat.py
`-- models.py
Now we need to edit both migration files:
#0003_create_cat: replace existing forward and backward code
#to use just one sentence:
def forwards(self, orm):
db.rename_table('common_cat', 'specific_cat')
if not db.dry_run:
# For permissions to...
Difference between Mock / Stub / Spy in Spock test framework
...ass which would otherwise use external resources like network connections, files or databases or maybe use dozens of other objects. The advantage of mocks is that you can isolate the class under test from the rest of the system.
A stub is also a dummy class providing some more specific, prepared or...
Why Does OAuth v2 Have Both Access and Refresh Tokens?
...igates the risk of a long-lived access_token leaking (query param in a log file on an insecure resource server, beta or poorly coded resource server app, JS SDK client on a non https site that puts the access_token in a cookie, etc)
...
How to handle Handler messages when activity/fragment is paused
...r are not required to setup any special permissions on your app's manifest file except if you plan to use sendStickyBroadcast(where you need to add BROADCAST_STICKY).
public class MyFragment extends Fragment {
public static final String INTENT_FILTER = "gr.tasos.myfragment.refresh";
pri...
How to detect when an Android app goes to the background and come back to the foreground
...for this reply... small notice.. MyApplication should mention in Manifest file application tag like android:name="MyApplication", otherwise app crashes... just to help somebody like me
– praveenb
Aug 1 '13 at 6:04
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