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What techniques can be used to speed up C++ compilation times?
...oaded quickly to get a head start in compiling another file with that same set of headers.
Be careful that you only include rarely changed stuff in the precompiled headers, or you could end up doing full rebuilds more often than necessary. This is a good place for STL headers and other library incl...
scp with port number specified
...
Unlike ssh, scp uses the uppercase P switch to set the port instead of the lowercase p:
scp -P 80 ... # Use port 80 to bypass the firewall, instead of the scp default
The lowercase p switch is used with scp for the preservation of times and modes.
Here is an excerpt f...
Custom li list-style with font-awesome icon
...
display: inline-block;
margin-left: -1.3em; /* same as padding-left set on li */
width: 1.3em; /* same as padding-left set on li */
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">
<ul>
<li>Item one</li&...
What's a good rate limiting algorithm?
...ng timestamps)
Reading the question again, if the rate limit is fully reset each 8 seconds, then here is a modification:
Start with a timestamp, last_send, at a time long ago (e.g., at the epoch). Also, start with the same 5-token bucket.
Strike the every 5/8 seconds rule.
Each time you send a...
How to throw an exception in C?
... The language specification simply doesn't define any such thing. There is setjmp/longjmp, though, which can be used to exit a function without returning. So programs could build their own exception-like mechanisms if they want, or a C implementation could define extensions to the standard.
...
RabbitMQ / AMQP: single queue, multiple consumers for same message?
...g('Recieved a message:')
console.log(payload)
})
})
setInterval( function() {
var test_message = 'TEST '+count
sendMessage(exchange, test_message)
count += 1;
}, 2000)
})
})
...
Use 'import module' or 'from module import'?
...cceptable, but don't use from module import *.
For any reasonable large set of code, if you import * you will likely be cementing it into the module, unable to be removed. This is because it is difficult to determine what items used in the code are coming from 'module', making it easy to get to ...
SQL Server - SELECT FROM stored procedure
... or a view instead of a procedure.
A procedure can return multiple result sets, each with its own schema. It's not suitable for using in a SELECT statement.
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make: Nothing to be done for `all'
....c $(FOODEPS)
%.o: %.c
$(CC) $< -o $@
I had several dependencies set up this way, and was trying to use one pattern recipe for them all. Clearly, a single substitution for "%" isn't going to work here. I made explicit rules for each dependency, and I found myself back among the puppies and...
Qt: How do I handle the event of the user pressing the 'X' (close) button?
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You may want to also use setAttribute(Qt::WA_QuitOnClose); for MainWindow.
– Borzh
Nov 22 '15 at 17:14
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