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What is the difference between sigaction and signal?
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This description of signal is actually of the Unix System V behavior. POSIX allows either this behavior or the much more sane BSD behavior, but since you can't be sure which one you'll get, it's still best to use sigaction.
...
How to return multiple objects from a Java method?
...ameters);
Type1 value1=(Type1)temp[0]; //For code clarity: temp[0] is not descriptive
Type2 value2=(Type2)temp[1];
The Pair example by David Hanak has no syntactic benefit, and is limited to two values.
return new Pair<Type1,Type2>(value1, value2);
And the caller looks like:
Pair<T...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
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send(screenshot,box); // sed post request with bug image, region and description
alert('To see POST requset with image go to: chrome console > network tab');
}
// ----- Helper functions
let q = s => document.querySelector(s); // query selector helper
window.report = report; // bind...
How can you dynamically create variables via a while loop? [duplicate]
...>>> r.foo
'oof'
>>> r.bar
'rab'
>>> names = 'id description price'.split()
>>> values = [666, 'duct tape', 3.45]
>>> s = Record()
>>> for name, value in zip(names, values):
... setattr(s, name, value)
...
>>> s.__dict__ # If you are ...
How to Parse Command Line Arguments in C++? [duplicate]
...ject, and insert a message
// that describes the program. The "Command description message"
// is printed last in the help text. The second argument is the
// delimiter (usually space) and the last one is the version number.
// The CmdLine object parses the argv array based on the Ar...
What is the common header format of Python files?
...ter implicitly, e.g. in a CGI context.
Next should be the docstring with a description. If the description is long, the first line should be a short summary that makes sense on its own, separated from the rest by a newline.
All code, including import statements, should follow the docstring. Otherwis...
Should I URL-encode POST data?
...,
'metacategory'=>$_POST["metacategory"],
'caption'=>$_POST["description"]
);
$fields_string = http_build_query($fields);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS,$fields_string);
curl_setopt($ch, CUR...
Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario
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I/O Completion Ports (IOCP). the description of IOCP is not quite correct. in IOCP, you have a static number of worker threads which take turns working on ALL pending tasks. not to be confused with thread pools which can be fixed or dynamic in size BUT have...
Get Image size WITHOUT loading image into memory
...f.fp.read(1)
i = i16(s)
if i in MARKER:
name, description, handler = MARKER[i]
# print hex(i), name, description
if handler is not None:
handler(self, i)
if i == 0xFFDA: # start of scan
rawmode = self.mo...
Is a Python dictionary an example of a hash table?
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Yes, it is a hash mapping or hash table. You can read a description of python's dict implementation, as written by Tim Peters, here.
That's why you can't use something 'not hashable' as a dict key, like a list:
>>> a = {}
>>> b = ['some', 'list']
>>> h...