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Volatile vs. Interlocked vs. lock
...t 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, then CPU B may not actually see that incremented value until some time later, which may cause problems.
If it is volatile, this just ensures the two CPU...
iPhone Simulator - Simulate a slow connection?
...his will point you in right direction:
http://www.macosxhints.com/article.php?story=20080119112509736
There are some good open source solutions, too, but I so can't remember their names.
This question might help: How to throttle network traffic for environment simulation?
...
'typeid' versus 'typeof' in C++
...t, which must be a pointer to an object of a class with virtual methods in order for RTTI (run-time type information) to be stored in the class. It can also give the compile time type of an expression or a type name, if not given a pointer to a class with run-time type information.
typeof is a GNU ...
HashSet vs LinkedHashSet
...
HashSet is unordered and unsorted Set.
LinkedHashSet is the ordered version of HashSet.
The only difference between HashSet and LinkedHashSet is that:
LinkedHashSet maintains the insertion order.
When we iterate through a HashSet, t...
How to add multiple font files for the same font?
...
The order is important, the bold/italic style must come last.
– The Who
Jun 11 '10 at 12:40
8
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How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
... @lukasLansky its reliable as long as you dont care about the order
– codeulike
Apr 28 '15 at 21:19
1
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Convert integer into byte array (Java)
... look at the ByteBuffer class.
ByteBuffer b = ByteBuffer.allocate(4);
//b.order(ByteOrder.BIG_ENDIAN); // optional, the initial order of a byte buffer is always BIG_ENDIAN.
b.putInt(0xAABBCCDD);
byte[] result = b.array();
Setting the byte order ensures that result[0] == 0xAA, result[1] == 0xBB, ...
How to sort a Ruby Hash by number value?
... number was returning as a string, that fixed it.. I had a2 and a1 in that order because I wanted the results to sort decending.. thanks for your feedback though.
– Dustin M.
Mar 29 '10 at 22:18
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How to load all modules in a folder?
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List all python (.py) files in the current folder and put them as __all__ variable in __init__.py
from os.path import dirname, basename, isfile, join
import glob
modules = glob.glob(join(dirname(__file__), "*.py"))
__all__ = [ ba...
When should I use cross apply over inner join?
...ELECT TOP 3 *
FROM t2
WHERE t2.t1_id = t1.id
ORDER BY
t2.rank DESC
) t2o
It cannot be easily formulated with an INNER JOIN condition.
You could probably do something like that using CTE's and window function:
WITH t2o AS
(
...