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What is the advantage of GCC's __builtin_expect in if else statements?
...the effects of that jump should be accounted for by the branch predictor. One assumption for __builtin_expect is usually that all things are not equal... there is a slow path and a fast path, and you as the programmer happen to know which path is most likely to be used.
– Adam...
2 column div layout: right column with fixed width, left fluid
My requirement is simple: 2 columns where the right one has a fixed size . Unfortunately I couldn't find a working solution, neither on stackoverflow nor in Google. Each solution described there fails if I implement in my own context. The current solution is:
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H2 in-memory database. Table not found
...ving case-sensitive, even though in all scripts (including in the creation ones) i used lowercase.
Solved by adding ;DATABASE_TO_UPPER=false to the connection URL.
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Synchronization vs Lock
...ings where you can't acquire and release in such a clean manner. I would honestly prefer to avoid using bare Locks in the first place, and just go with a more sophisticated concurrency control such as a CyclicBarrier or a LinkedBlockingQueue, if they meet your needs.
I've never had a reason to use...
How to call function of one php file from another php file and pass parameters to it?
I want to call a function in one PHP file from a second PHP file and also pass two parameters to that function. How can I do this?
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Revert to Eclipse default settings
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This one did not work for me. Apparently, properties change Eclipse more than can be restored by defaults.
– mico
Feb 13 '12 at 9:41
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Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
...id_rsa.pub
If you don't have a public key, Heroku will prompt you to add one automatically which works seamlessly. Just use:
heroku keys:add
To clear all your previous keys do :
heroku keys:clear
To display all your existing keys do :
heroku keys
EDIT:
The above did not seem to work for...
Merge multiple lines (two blocks) in Vim
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del deletes the given lines. It can take a register argument, but when one is not given, it dumps the lines to the unnamed register, @", just like deleting in normal mode does. let l=split(@") then splits the deleted lines into a list, using the default delimiter: whitespace. To work properly ...
What is ActiveMQ used for - can we apply messaging concept using a Database?
...d for the purpose of sending messages between two applications, or two components inside one application.
Essentially, MOM and databases share a common foundation in that they provide transactional and persistent data storage to can read and write from.
The big difference is the usage pattern - whe...
Nodejs Event Loop
...ve until the script ends. CPU bound operation - execute in-line, I/O bound ones, request to the machinery as above.
When I/O completes, the listeners are called back.
The event machinery above is called libuv AKA event loop framework. Node leverages this library to implement its event driven progr...