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C++ performance challenge: integer to std::string conversion
...me shortcuts in the sprintf implementation, I already mentioned that in my question, but I believe the code-to-beat gives exactly the same result as stringstream.
– Ben Voigt
Dec 4 '10 at 2:57
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Why is “final” not allowed in Java 8 interface methods?
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This question is, to some degree, related to What is the reason why “synchronized” is not allowed in Java 8 interface methods?
The key thing to understand about default methods is that the primary design goal is interface evo...
Log all requests from the python-requests module
I am using python Requests . I need to debug some OAuth activity, and for that I would like it to log all requests being performed. I could get this information with ngrep , but unfortunately it is not possible to grep https connections (which are needed for OAuth )
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How to avoid using Select in Excel VBA
... select
Use Dim'd variables
Dim rng as Range
Set the variable to the required range. There are many ways to refer to a single-cell range
Set rng = Range("A1")
Set rng = Cells(1,1)
Set rng = Range("NamedRange")
or a multi-cell range
Set rng = Range("A1:B10")
Set rng = Range("A1", "B10")
Set ...
Why are floating point numbers inaccurate?
... # double precision. all python floats are this
int_pack = 'Q'
float_pack = 'd'
exponent_bits = 11
mantissa_bits = 52
exponent_bias = 1023
else:
raise ValueError, 'bits argument must be 32 or 64'
bin_iter = iter(bin(struct.unpack(int_...
JavaScript hashmap equivalent
...After all, you are in the best position to know what makes your objects unique. That's what I do.
Example:
var key = function(obj){
// Some unique object-dependent key
return obj.totallyUniqueEmployeeIdKey; // Just an example
};
var dict = {};
dict[key(obj1)] = obj1;
dict[key(obj2)] = obj2;
T...
How to get first and last day of previous month (with timestamp) in SQL Server
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@Thiru Not all SQL softwares allow for 3 arguments in the DATEDIFF() function. I know SQL Server does, but I'm not sure that MySQL does.
– daOnlyBG
May 22 '17 at 15:14
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How to measure time in milliseconds using ANSI C?
...times it is called a tick counter) which counts ticks with a predefined frequency, so if you have a ticks value and the frequency is known, you can easily convert ticks to elapsed time. It is actually not guaranteed that a monotonic clock reflects the current system time in any way, it may also coun...
How does this giant regex work?
...file called doc.php . The file functions or links to a file manager. It's quite nicely done. Basically, it lists all the files in the current directory, and it lets you change directories.
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Stopping scripters from slamming your website
...you happen to reload the same page too often, post successive comments too quickly, or something else that triggers an alarm, make them prove they're human. In your case, this would probably be constant reloads of the same page, following every link on a page quickly, or filling in an order form too...