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What does “dereferencing” a pointer mean?
... case f: p_filename = optarg; break;
}
if (p_filename) // Only NULL converts to false
... // Only get here if -f flag specified
In C and C++, just as inbuilt numeric types don't necessarily default to 0, nor bools to false, pointers are not always set to NULL. All these are set to 0/f...
Is either GET or POST more secure than the other?
...g said that, GET responses can be made non-cacheable with less effort than converting the URL to a POST handler.
HTTP "Referer"
If the user were to navigate to a third party website from the page served in response to a GET request, that third party website gets to see all the GET request parameters...
How can I easily convert DataReader to List? [duplicate]
I have data in a DataReader which I want to be converted to a List<T> .
What is a possible simple solution for this?
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Convert an array of primitive longs into a List of Longs
This may be a bit of an easy, headdesk sort of question, but my first attempt surprisingly completely failed to work. I wanted to take an array of primitive longs and turn it into a list, which I attempted to do like this:
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Java: Date from unix timestamp
I need to convert a unix timestamp to a date object.
I tried this:
10 Answers
10
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android on Text Change Listener
...");
}
}
Tested this for a college assignment I was working on to convert temperature scales as the user typed them in. Worked perfectly, and it's way simpler.
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Calculate distance between two latitude-longitude points? (Haversine formula)
...89793;
const double RADIUS = 6378.16;
/// <summary>
/// Convert degrees to Radians
/// </summary>
/// <param name="x">Degrees</param>
/// <returns>The equivalent in radians</returns>
public static double Radians(double x)
{
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How to automatically start a service when running a docker container?
...th tail it works. For both cases you need to use switch cap_add(--cap-add SYS_PTRACE for run) with at least SYS_PTRACE
– zhrist
Nov 10 '17 at 19:48
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...eb2e605c6c02d29a88563 linux-master.tar
real 0m1.685s
user 0m1.528s
sys 0m0.156s
$ time md5sum linux-master.tar
d476375abacda064ae437a683c537ec4 linux-master.tar
real 0m2.942s
user 0m2.806s
sys 0m0.136s
$ time sum linux-master.tar
36928 810240
real 0m2.186s
user 0m1.9...
Print string to text file
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To make sure know what the variable type is often convert it to make sure, ex: "text_file.write('Purchase Amount: %s' % str(TotalAmount))" which will work with lists, strings, floats, ints, and anything else that is convertable to a string.
– EBo
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