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Simulate delayed and dropped packets on Linux
... the local Ethernet.
# tc qdisc add dev eth0 root netem delay 100ms
Now a simple ping test to host on the local network should show an increase of 100 milliseconds. The delay is limited by the clock resolution of the kernel (Hz). On most 2.4 systems, the system clock runs at 100 Hz which all...
Swapping column values in MySQL
I have a MySQL table with coordinates, the column names are X and Y. Now I want to swap the column values in this table, so that X becomes Y and Y becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permission...
How to use the new affix plugin in twitter's bootstrap 2.1.0?
...: $('#nav').offset().top. And it should be inside a ready() block so you know the page layout is complete.
– orrd
Sep 10 '13 at 16:20
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What is the equivalent of MATLAB's repmat in NumPy
... the size/shape of the output matrix. Say the sequence for manipulation is now 1,1,2.
In Matlab
> size(repmat(M,1,1,2))
ans =
2 3 2
it has copied the first two dimensions (rows and columns) of the input matrix and has repeated that once into a new third dimension (copied twice, that ...
What does FrameLayout do?
... screen. Your explanation made the 3D nature of "on top" click for me and now I get it. Thank you very much :)
– Slartibartfast
Apr 6 '18 at 5:47
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You can't specify target table for update in FROM clause
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@grisson Thanks for the clarification. Now I get why my IN clause doesn't work - I was targeting the same table.
– Anthony
Sep 4 '12 at 2:43
2
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Why it's not possible to use regex to parse HTML/XML: a formal explanation in layman's terms
... closing tags match a previous opening tag. To understand it, you need to know which element is being closed. Without any means to "remember" what opening tags you've seen, no chance.
Note however that most "regex" libraries actually permit more than just the strict definition of regular expression...
Move the most recent commit(s) to a new branch with Git
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git reset --hard HEAD~3 # Move master back by 3 commits (Make sure you know how many commits you need to go back)
git checkout newbranch # Go to the new branch that still has the desired commits
But do make sure how many commits to go back. Alternatively, you can instead of HEAD~3, simply pro...
What is the canonical way to check for errors using the CUDA runtime API?
...eaders seem to have been rearranged. <thrust/system/cuda_error.h> is now effectively <thrust/system/cuda/error.h>.
– chappjc
May 18 '15 at 20:05
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The difference between Classes, Objects, and Instances
...s are created). And it says that, the objects of the class are instances. Now please someone tell me what is the differences between object and instance?Does this mean that object don't really exist in context of programming and instance represents object in it?
– Pranjut
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