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Is inline assembly language slower than native C++ code?
...times can automatically use some MMX/SIMDx instructions by themselves, and if you don't use them you simply can't compare (other answers already reviewed your assembly code very well).
Just for loops this is a short list of loop optimizations of what is commonly checked for by a compiler (do you thi...
How to get the request parameters in Symfony 2?
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It is different from what PHP uses, but it actually makes more sense. $_GET data is data from the query string (no GET request needed at all) and $_POST data is data from the request body (does not have to be a POST request either, ...
How do I access command line arguments in Python?
...
Python tutorial explains it:
import sys
print(sys.argv)
More specifically, if you run python example.py one two three:
>>> import sys
>>> print(sys.argv)
['example.py', 'one', 'two', 'three']
sh...
What is the difference between attribute and property? [closed]
...s (and in normal English usage) the terms mean the same thing.
In the specific context of HTML / Javascript the terms get confused because the HTML representation of a DOM element has attributes (that being the term used in XML for the key/value pairs contained within a tag) but when represented a...
How to use SCNetworkReachability in Swift
...ue to changes in the Swift language, which made it a bit confusing. I have now rewritten it and removed everything which refers to Swift 1.x. The older code can
be found in the edit history if somebody needs it.)
This is how you would do it in Swift 2.0 (Xcode 7):
import SystemConfiguration
func ...
File to byte[] in Java
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This now works on Android if targeting SDK version 26 and higher.
– JamesNWarner
Aug 9 '17 at 14:46
...
Origin null is not allowed by Access-Control-Allow-Origin
... I'm not being able to add this parameter under Windows 8..., anybody who knows how to do it?...
– Morty
May 22 '14 at 20:32
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How does free know how much to free?
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When you call malloc(), you specify the amount of memory to allocate. The amount of memory actually used is slightly more than this, and includes extra information that records (at least) how big the block is. You can't (reliably) access that other informat...
How to drop unique in MySQL?
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Note that you may not be able to drop a key like this if a foreign key to the email column exists (error 150) . To get this to work, drop the foreign key first, then drop the index, and recreate the foreign key afterwards. e.g ALTER TABLE fuinfo DROP foreign key fk_name_for_em...
From inside of a Docker container, how do I connect to the localhost of the machine?
...ker host has the IP address 172.17.42.1 on the docker0 network interface.
Now start a new container and get a shell on it: docker run --rm -it ubuntu:trusty bash and within the container type ip addr show eth0 to discover how its main network interface is set up:
root@e77f6a1b3740:/# ip addr show ...