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Volatile vs. Interlocked vs. lock
...e access modifier of counter to public volatile
As other people have mentioned, this on its own isn't actually safe at all. The point of volatile is that multiple threads running on multiple CPUs can and will cache data and re-order instructions.
If it is not volatile, and CPU A increments a value,...
Custom HTTP headers : naming conventions
... name with "X-". E.g. X-Forwarded-For, X-Requested-With. This is also mentioned in a.o. section 5 of RFC 2047.
Update 1: On June 2011, the first IETF draft was posted to deprecate the recommendation of using the "X-" prefix for non-standard headers. The reason is that when non-standard headers pr...
WAMP/XAMPP is responding very slow over localhost
...rameters, expand New, and select DWORD (32-bit) Value
Enter DisabledComponents into the Name field
Double click on the new DisabledComponents value, enter ffffffff into the Value data dialog box, and click the OK button
Confirm the new registry value contains the required data.
Change y...
git add, commit and push commands in one?
Is there any way to use these three commands in one?
32 Answers
32
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GCC -fPIC option
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@Narek: the error occurs if one process wants to load more than one shared library at the same virtual address. Since libraries cannot predict what other libraries could be loaded, this problem is unavoidable with the traditional shared library concept....
Check if OneToOneField is None in Django
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To check if the (OneToOne) relation exists or not, you can use the hasattr function:
if hasattr(request.user, 'type1profile'):
# do something
elif hasattr(request.user, 'type2profile'):
# do something else
else:
# do something el...
How to parse JSON in Python?
...
Very simple:
import json
data = json.loads('{"one" : "1", "two" : "2", "three" : "3"}')
print data['two']
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How to select the first element with a specific attribute using XPath
... books from 'US'. (/bookstore/book[@location='US'])[1] will get the first one.
– Kevin Driedger
Apr 17 '12 at 19:39
3
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How do I format a long integer as a string without separator in Java?
...this with MessageFormat properties injection. Good thing there's more than one way to do it!
– Philihp Busby
Oct 20 '11 at 2:27
3
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Defining a HTML template to append using JQuery
...clude another library, John Resig offers a jQuery solution, similar to the one below.
Browsers and screen readers ignore unrecognized script types:
<script id="hidden-template" type="text/x-custom-template">
<tr>
<td>Foo</td>
<td>Bar</td>
...